Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    21-04-2024 03:46

General

  • Target

    fe5abeb99b41caabc40ca3fdc4e32357_JaffaCakes118.exe

  • Size

    1.1MB

  • MD5

    fe5abeb99b41caabc40ca3fdc4e32357

  • SHA1

    31395d40d0499d83a755e558d16f46a23340b500

  • SHA256

    3de1898cb9ba05922118274f4286962392e3eb63ddb7744ffe3cd3ca9970df1b

  • SHA512

    b2cbdd292881a529fc4eec2423ecdb3603cf52139949557887144816d13617f08919d794af0a4a1aa097d36f48af55956ecc02ced0c175157e20918a6fc5909c

  • SSDEEP

    24576:cjg6rklsxivedtl8wz8iJ2Gqxfrk0mg5jWWPPv/k:ckmklsxw2Dwg2Gg5jXv/k

Malware Config

Extracted

Family

darkcomet

Botnet

Fucked

C2

hidesn.no-ip.org:1604

Mutex

DC_MUTEX-ZEGD8UE

Attributes
  • InstallPath

    System32C/winlogon.exe

  • gencode

    QKzVM5n527Ug

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    winlogon

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Modifies firewall policy service 2 TTPs 9 IoCs
  • Modifies security service 2 TTPs 3 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Disables RegEdit via registry modification 3 IoCs
  • Sets file to hidden 1 TTPs 4 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs
  • Views/modifies file attributes 1 TTPs 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fe5abeb99b41caabc40ca3fdc4e32357_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fe5abeb99b41caabc40ca3fdc4e32357_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Users\Admin\AppData\Local\Temp\1.exe
      "C:\Users\Admin\AppData\Local\Temp\1.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2328
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\1.exe" +s +h
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2656
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\1.exe" +s +h
          4⤵
          • Sets file to hidden
          • Views/modifies file attributes
          PID:2452
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2588
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • Views/modifies file attributes
          PID:3016
    • C:\Users\Admin\AppData\Local\Temp\2.exe
      "C:\Users\Admin\AppData\Local\Temp\2.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Modifies firewall policy service
      • Modifies security service
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1804
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\2.exe" +s +h
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2628
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\2.exe" +s +h
          4⤵
          • Sets file to hidden
          • Views/modifies file attributes
          PID:2572
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2640
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • Views/modifies file attributes
          PID:2812
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        3⤵
        • Modifies firewall policy service
        • Modifies security service
        • Windows security bypass
        • Disables RegEdit via registry modification
        • Suspicious use of AdjustPrivilegeToken
        PID:2856

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\1.exe

    Filesize

    756KB

    MD5

    813f1a78f96928559c28ca0e9e893364

    SHA1

    b2a6db617a08f972c5fad15db2dec11f9ec473f7

    SHA256

    d8d4c8d87b35eed612c023f596483a2abd342280971a4eef995488e824a0e452

    SHA512

    1458119161d04f366866d98c8f00edcf985dfad29e20f0b2dea1ea8459c9e77dffddb844cc7d8294ae57b4fc34975347d3f6874e22ed2ed4769bfe08b8a641ac

  • C:\Users\Admin\AppData\Local\Temp\2.exe

    Filesize

    756KB

    MD5

    a3b4f11a867a36b24b1a00d32025b230

    SHA1

    bef76a2a11954d86030cd7b7bcb23648a61f0f12

    SHA256

    015cbf610dd013789e40a9dc415fd422df6038ba733a7f43f076afc410779123

    SHA512

    05f505584db73cf36ec99db073f288c8fdbe95895b6f64ab533985b48f4657cb821e380fcdce27b6ee4ce1ccbaffc8c1298dc52a1dfcdab3f2d0c7c0646f9a9a

  • memory/1804-18-0x00000000003E0000-0x00000000003E1000-memory.dmp

    Filesize

    4KB

  • memory/1804-24-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/2328-25-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB

  • memory/2328-20-0x00000000003F0000-0x00000000003F1000-memory.dmp

    Filesize

    4KB

  • memory/2512-19-0x000007FEF5DC0000-0x000007FEF675D000-memory.dmp

    Filesize

    9.6MB

  • memory/2512-0-0x000007FEF5DC0000-0x000007FEF675D000-memory.dmp

    Filesize

    9.6MB

  • memory/2512-5-0x000007FEF5DC0000-0x000007FEF675D000-memory.dmp

    Filesize

    9.6MB

  • memory/2512-1-0x000000001AEC0000-0x000000001B042000-memory.dmp

    Filesize

    1.5MB

  • memory/2512-2-0x00000000020C0000-0x0000000002140000-memory.dmp

    Filesize

    512KB

  • memory/2512-26-0x000007FEF5DC0000-0x000007FEF675D000-memory.dmp

    Filesize

    9.6MB

  • memory/2856-23-0x0000000000400000-0x00000000004CA000-memory.dmp

    Filesize

    808KB