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Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/01/2025, 08:52

General

  • Target

    JaffaCakes118_63eef19448b880dc55a3a52bc9a8da08.exe

  • Size

    284KB

  • MD5

    63eef19448b880dc55a3a52bc9a8da08

  • SHA1

    93bb46edb40c00d4d2601f9662076e1565594683

  • SHA256

    7ecb64fe1dc2bfa8633881618e70cc66f124e2c604c850956c1250c5f4754b92

  • SHA512

    0a33f1554c831c6704830016b93eed51d1916ab8f51d9871c42542ffac31c28bec2b61b4d8fba1c298c6dda1d07ec4ae9301b2b511506e03f0a1fea3cff8138a

  • SSDEEP

    6144:Flb6SDOiIN4o2cOMayarS0IjX7n6wXmzbBFX:F0Siiu2cOMayaZerXXmhFX

Malware Config

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 5 IoCs

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

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63eef19448b880dc55a3a52bc9a8da08.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_63eef19448b880dc55a3a52bc9a8da08.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:748
    • C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
      "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4868
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:1500

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

    Filesize

    284KB

    MD5

    63eef19448b880dc55a3a52bc9a8da08

    SHA1

    93bb46edb40c00d4d2601f9662076e1565594683

    SHA256

    7ecb64fe1dc2bfa8633881618e70cc66f124e2c604c850956c1250c5f4754b92

    SHA512

    0a33f1554c831c6704830016b93eed51d1916ab8f51d9871c42542ffac31c28bec2b61b4d8fba1c298c6dda1d07ec4ae9301b2b511506e03f0a1fea3cff8138a

  • memory/748-0-0x0000000000400000-0x00000000004C9000-memory.dmp

    Filesize

    804KB

  • memory/748-1-0x0000000000AE0000-0x0000000000AE1000-memory.dmp

    Filesize

    4KB

  • memory/748-14-0x0000000000400000-0x00000000004C9000-memory.dmp

    Filesize

    804KB

  • memory/1500-17-0x0000000000400000-0x00000000004C9000-memory.dmp

    Filesize

    804KB

  • memory/4868-16-0x00000000023D0000-0x00000000023D1000-memory.dmp

    Filesize

    4KB

  • memory/4868-18-0x0000000000400000-0x00000000004C9000-memory.dmp

    Filesize

    804KB