Analysis

  • max time kernel
    135s
  • max time network
    104s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-06-2024 05:23

General

  • Target

    fcbe39200a1d004e06f8e206497b5e223f1c2b52431429b8f90dcd5f67a4533d.dll

  • Size

    120KB

  • MD5

    7f979404f5032afe210729b54dfac5ef

  • SHA1

    76c90b74cdd29563ddbc26395bec29063df0681b

  • SHA256

    fcbe39200a1d004e06f8e206497b5e223f1c2b52431429b8f90dcd5f67a4533d

  • SHA512

    44a097a577a246c1fd9c49d13b9ef0ecf701e657daaa935236f6da9936ef8907d866ee1e873ee1a754f73b6c26173c9ba765f982ee100d3748078539648e9945

  • SSDEEP

    3072:FGE3MnhUaUd/o+Thb7sKGHWwEaFyrpzF:ROhUi+Thb7sKGdVFcF

Malware Config

Extracted

Family

sality

C2

http://89.119.67.154/testo5/

http://kukutrustnet777.info/home.gif

http://kukutrustnet888.info/home.gif

http://kukutrustnet987.info/home.gif

Signatures

  • Modifies firewall policy service 3 TTPs 9 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 3 IoCs
  • Windows security bypass 2 TTPs 18 IoCs
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 30 IoCs
  • UPX dump on OEP (original entry point) 34 IoCs
  • Executes dropped EXE 3 IoCs
  • UPX packed file 30 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Windows security modification 2 TTPs 21 IoCs
  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 11 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:804
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:812
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:396
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2684
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2712
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2844
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3572
                  • C:\Windows\system32\rundll32.exe
                    rundll32.exe C:\Users\Admin\AppData\Local\Temp\fcbe39200a1d004e06f8e206497b5e223f1c2b52431429b8f90dcd5f67a4533d.dll,#1
                    2⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1168
                    • C:\Windows\SysWOW64\rundll32.exe
                      rundll32.exe C:\Users\Admin\AppData\Local\Temp\fcbe39200a1d004e06f8e206497b5e223f1c2b52431429b8f90dcd5f67a4533d.dll,#1
                      3⤵
                      • Suspicious use of WriteProcessMemory
                      PID:4900
                      • C:\Users\Admin\AppData\Local\Temp\e5735d5.exe
                        C:\Users\Admin\AppData\Local\Temp\e5735d5.exe
                        4⤵
                        • Modifies firewall policy service
                        • UAC bypass
                        • Windows security bypass
                        • Executes dropped EXE
                        • Windows security modification
                        • Checks whether UAC is enabled
                        • Enumerates connected drives
                        • Drops file in Program Files directory
                        • Drops file in Windows directory
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of AdjustPrivilegeToken
                        • Suspicious use of WriteProcessMemory
                        • System policy modification
                        PID:2124
                      • C:\Users\Admin\AppData\Local\Temp\e5737d9.exe
                        C:\Users\Admin\AppData\Local\Temp\e5737d9.exe
                        4⤵
                        • Modifies firewall policy service
                        • UAC bypass
                        • Windows security bypass
                        • Executes dropped EXE
                        • Windows security modification
                        • Checks whether UAC is enabled
                        • Drops file in Windows directory
                        • Suspicious behavior: EnumeratesProcesses
                        • Suspicious use of WriteProcessMemory
                        • System policy modification
                        PID:1176
                      • C:\Users\Admin\AppData\Local\Temp\e5756ab.exe
                        C:\Users\Admin\AppData\Local\Temp\e5756ab.exe
                        4⤵
                        • Modifies firewall policy service
                        • UAC bypass
                        • Windows security bypass
                        • Executes dropped EXE
                        • Windows security modification
                        • Checks whether UAC is enabled
                        • Drops file in Windows directory
                        • System policy modification
                        PID:5056
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3724
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3904
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:4004
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:4068
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:676
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:4232
                            • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe
                              "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca
                              1⤵
                                PID:1492
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:3788
                                • C:\Windows\system32\backgroundTaskHost.exe
                                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                                  1⤵
                                    PID:2184
                                  • C:\Windows\system32\backgroundTaskHost.exe
                                    "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                    1⤵
                                      PID:368
                                    • C:\Windows\System32\RuntimeBroker.exe
                                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                                      1⤵
                                        PID:3196
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:2200
                                        • C:\Windows\system32\DllHost.exe
                                          C:\Windows\system32\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
                                          1⤵
                                            PID:2088

                                          Network

                                          MITRE ATT&CK Matrix ATT&CK v13

                                          Persistence

                                          Create or Modify System Process

                                          1
                                          T1543

                                          Windows Service

                                          1
                                          T1543.003

                                          Privilege Escalation

                                          Create or Modify System Process

                                          1
                                          T1543

                                          Windows Service

                                          1
                                          T1543.003

                                          Abuse Elevation Control Mechanism

                                          1
                                          T1548

                                          Bypass User Account Control

                                          1
                                          T1548.002

                                          Defense Evasion

                                          Modify Registry

                                          5
                                          T1112

                                          Impair Defenses

                                          4
                                          T1562

                                          Disable or Modify Tools

                                          3
                                          T1562.001

                                          Disable or Modify System Firewall

                                          1
                                          T1562.004

                                          Abuse Elevation Control Mechanism

                                          1
                                          T1548

                                          Bypass User Account Control

                                          1
                                          T1548.002

                                          Discovery

                                          System Information Discovery

                                          2
                                          T1082

                                          Query Registry

                                          1
                                          T1012

                                          Peripheral Device Discovery

                                          1
                                          T1120

                                          Replay Monitor

                                          Loading Replay Monitor...

                                          Downloads

                                          • C:\Users\Admin\AppData\Local\Temp\e5735d5.exe
                                            Filesize

                                            97KB

                                            MD5

                                            28ddf2887997a8b2b4fb1712d2b7f01a

                                            SHA1

                                            95347684cbc4dbb1cf84413b43d94a72f8e66515

                                            SHA256

                                            40fc1393517538b3792263278ba3ac26a8d6a562fcb122693b33c2761e849fa3

                                            SHA512

                                            5e6ec1fbb34cb52f0e0d0c0f88f8ab896cd6655c4aed5c05ba4429801701b88c514c867305fe19ce03d0abbc3f43de89de43efe1d79884a335f4c7ff8e60894f

                                          • C:\Windows\SYSTEM.INI
                                            Filesize

                                            257B

                                            MD5

                                            cc199e06829a2ffcc0cca4a9e2d148e0

                                            SHA1

                                            1a5e8ae037e7be1717171a13d1e6c3ccc85bb3da

                                            SHA256

                                            6777caef5e685001c484568d7ec77e60e0f9f95f59587eff3ab55097bc749b9f

                                            SHA512

                                            4a2d3da4d6d4b35a60dca472f3dcc2e3fa037f7aed07d41545ee6f7e098e9fe3df5fb862610ff6cc7e70b5d96d7e64f71236aafab4d9121c9e24f328080c2749

                                          • memory/1176-35-0x0000000000400000-0x0000000000412000-memory.dmp
                                            Filesize

                                            72KB

                                          • memory/1176-130-0x0000000000400000-0x0000000000412000-memory.dmp
                                            Filesize

                                            72KB

                                          • memory/1176-129-0x0000000000B60000-0x0000000001C1A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/1176-112-0x0000000000B60000-0x0000000001C1A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/1176-57-0x00000000001E0000-0x00000000001E2000-memory.dmp
                                            Filesize

                                            8KB

                                          • memory/1176-55-0x00000000001E0000-0x00000000001E2000-memory.dmp
                                            Filesize

                                            8KB

                                          • memory/1176-52-0x00000000001F0000-0x00000000001F1000-memory.dmp
                                            Filesize

                                            4KB

                                          • memory/2124-40-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-70-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-4-0x0000000000400000-0x0000000000412000-memory.dmp
                                            Filesize

                                            72KB

                                          • memory/2124-28-0x0000000001A00000-0x0000000001A01000-memory.dmp
                                            Filesize

                                            4KB

                                          • memory/2124-12-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-20-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-11-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-13-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-19-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-10-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-8-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-9-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-6-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-36-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-37-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-38-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-39-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-29-0x00000000019F0000-0x00000000019F2000-memory.dmp
                                            Filesize

                                            8KB

                                          • memory/2124-50-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-95-0x0000000000400000-0x0000000000412000-memory.dmp
                                            Filesize

                                            72KB

                                          • memory/2124-34-0x00000000019F0000-0x00000000019F2000-memory.dmp
                                            Filesize

                                            8KB

                                          • memory/2124-80-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-22-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-82-0x00000000019F0000-0x00000000019F2000-memory.dmp
                                            Filesize

                                            8KB

                                          • memory/2124-21-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-59-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-61-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-62-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-64-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-66-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-68-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-74-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-72-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/2124-73-0x00000000007E0000-0x000000000189A000-memory.dmp
                                            Filesize

                                            16.7MB

                                          • memory/4900-3-0x0000000010000000-0x0000000010020000-memory.dmp
                                            Filesize

                                            128KB

                                          • memory/4900-23-0x0000000003D00000-0x0000000003D02000-memory.dmp
                                            Filesize

                                            8KB

                                          • memory/4900-26-0x0000000003E30000-0x0000000003E31000-memory.dmp
                                            Filesize

                                            4KB

                                          • memory/4900-33-0x0000000003D00000-0x0000000003D02000-memory.dmp
                                            Filesize

                                            8KB

                                          • memory/4900-24-0x0000000003D00000-0x0000000003D02000-memory.dmp
                                            Filesize

                                            8KB

                                          • memory/5056-58-0x00000000001E0000-0x00000000001E2000-memory.dmp
                                            Filesize

                                            8KB

                                          • memory/5056-56-0x00000000001E0000-0x00000000001E2000-memory.dmp
                                            Filesize

                                            8KB

                                          • memory/5056-54-0x00000000001F0000-0x00000000001F1000-memory.dmp
                                            Filesize

                                            4KB

                                          • memory/5056-153-0x0000000000400000-0x0000000000412000-memory.dmp
                                            Filesize

                                            72KB