Analysis

  • max time kernel
    121s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-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 32 IoCs
  • UPX dump on OEP (original entry point) 33 IoCs
  • UPX packed file 32 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 14 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1072
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1080
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1148
          • 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 Windows directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            • System policy modification
            PID:1920
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:2168

          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/1072-18-0x0000000002070000-0x0000000002072000-memory.dmp
            Filesize

            8KB

          • memory/1920-35-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-11-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-38-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-10-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-25-0x0000000001760000-0x0000000001761000-memory.dmp
            Filesize

            4KB

          • memory/1920-3-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-6-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-37-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-30-0x0000000001750000-0x0000000001752000-memory.dmp
            Filesize

            8KB

          • memory/1920-29-0x0000000001750000-0x0000000001752000-memory.dmp
            Filesize

            8KB

          • memory/1920-28-0x0000000001760000-0x0000000001761000-memory.dmp
            Filesize

            4KB

          • memory/1920-8-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-34-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-24-0x0000000001750000-0x0000000001752000-memory.dmp
            Filesize

            8KB

          • memory/1920-9-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-7-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-31-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-32-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-33-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-0-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/1920-12-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-4-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-5-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-40-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-41-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-43-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-53-0x0000000003D00000-0x0000000003D01000-memory.dmp
            Filesize

            4KB

          • memory/1920-54-0x0000000002FA0000-0x0000000002FA2000-memory.dmp
            Filesize

            8KB

          • memory/1920-55-0x0000000002FA0000-0x0000000002FA2000-memory.dmp
            Filesize

            8KB

          • memory/1920-56-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-57-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-59-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-61-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-64-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-68-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-71-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-72-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-74-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-73-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-76-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB

          • memory/1920-100-0x0000000000400000-0x0000000000412000-memory.dmp
            Filesize

            72KB

          • memory/1920-101-0x0000000000590000-0x000000000164A000-memory.dmp
            Filesize

            16.7MB