Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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 19:18

General

  • Target

    20c315a94d13157a5711de69ccf7307a676815561dd6d749c3ad5b43c41e09e1.exe

  • Size

    65KB

  • MD5

    8fe839caa4913469c88ddc73635bee3f

  • SHA1

    a0b71956d978c6102a5f181fb20f6e9606c84dd6

  • SHA256

    20c315a94d13157a5711de69ccf7307a676815561dd6d749c3ad5b43c41e09e1

  • SHA512

    9fb9450e0c7c63e1241e268b33dd59f22eb4caab6e4af2b2ff60612f34b5a4764420c5dd8ad70af281b6fcf634a6cde63161b89ff2b20a60e80f024a1b1d9216

  • SSDEEP

    1536:RclJ1kNATK0S/6SaIWZQomKME5+5faQNg6mhVC0h/22jQOuPc5Cxf/:alJc50S/MQLKz5+NaQkhtNuPcyf/

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 3 IoCs
  • Sality

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

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 28 IoCs
  • UPX dump on OEP (original entry point) 30 IoCs
  • UPX packed file 28 IoCs

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

  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 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 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:776
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:784
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:316
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2052
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:392
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:3104
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3432
                  • C:\Users\Admin\AppData\Local\Temp\20c315a94d13157a5711de69ccf7307a676815561dd6d749c3ad5b43c41e09e1.exe
                    "C:\Users\Admin\AppData\Local\Temp\20c315a94d13157a5711de69ccf7307a676815561dd6d749c3ad5b43c41e09e1.exe"
                    2⤵
                    • Modifies firewall policy service
                    • UAC bypass
                    • Windows security bypass
                    • 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:1436
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                  1⤵
                    PID:3552
                  • C:\Windows\system32\DllHost.exe
                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                    1⤵
                      PID:3764
                    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                      1⤵
                        PID:3852
                      • C:\Windows\System32\RuntimeBroker.exe
                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                        1⤵
                          PID:3920
                        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                          1⤵
                            PID:4020
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:3684
                            • 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:4844
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:4912
                                • C:\Windows\system32\backgroundTaskHost.exe
                                  "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                                  1⤵
                                    PID:3848
                                  • C:\Windows\system32\backgroundTaskHost.exe
                                    "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                    1⤵
                                      PID:208
                                    • C:\Windows\System32\RuntimeBroker.exe
                                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                                      1⤵
                                        PID:2992
                                      • C:\Windows\System32\RuntimeBroker.exe
                                        C:\Windows\System32\RuntimeBroker.exe -Embedding
                                        1⤵
                                          PID:2064

                                        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

                                        • memory/1436-0-0x0000000000400000-0x0000000000412000-memory.dmp
                                          Filesize

                                          72KB

                                        • memory/1436-1-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-3-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-7-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-5-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-17-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-20-0x0000000003520000-0x0000000003522000-memory.dmp
                                          Filesize

                                          8KB

                                        • memory/1436-21-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-18-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-8-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-11-0x0000000003FB0000-0x0000000003FB1000-memory.dmp
                                          Filesize

                                          4KB

                                        • memory/1436-19-0x0000000003520000-0x0000000003522000-memory.dmp
                                          Filesize

                                          8KB

                                        • memory/1436-10-0x0000000003520000-0x0000000003522000-memory.dmp
                                          Filesize

                                          8KB

                                        • memory/1436-9-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-6-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-23-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-22-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-24-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-25-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-26-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-28-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-29-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-31-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-32-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-34-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-35-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-36-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-38-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-41-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-47-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-48-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-50-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-52-0x00000000007A0000-0x000000000185A000-memory.dmp
                                          Filesize

                                          16.7MB

                                        • memory/1436-60-0x0000000003520000-0x0000000003522000-memory.dmp
                                          Filesize

                                          8KB

                                        • memory/1436-71-0x0000000000400000-0x0000000000412000-memory.dmp
                                          Filesize

                                          72KB