Overview

overview

10

Static

static

10

JaffaCakes...ab.exe

windows7-x64

10

JaffaCakes...ab.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    103s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/03/2025, 06:07

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General

  • Target

    JaffaCakes118_8a640bec052904f0ab47e951cfada0ab.exe

  • Size

    1.4MB

  • MD5

    8a640bec052904f0ab47e951cfada0ab

  • SHA1

    9acc1ba44e592ac830d6bde60401e570ae17a5af

  • SHA256

    cedbf08a6f5a665fed0aad9d1825f4631c99ab2a724f8eec9739f899587d745d

  • SHA512

    32e0a82188a5977aefa9a01533edc0e6ee2c43114b18a6fa4c2f9269471d80bc9506bb9a1ba832c5412f7f74288477da7bed65d7126893c27e2edc822759c607

  • SSDEEP

    12288:S6A84PaHhfD/tV9sj5NKR0pau9XGyu2qBVGLQyTPf1Db:XAmBpVKHu0Mu9Xo20VGLVPt

Score
10/10
darkcometopferdefense_evasiondiscoverypersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

OPFER

C2

ichsage.hopto.org:65449

Mutex

DC_MUTEX-97JWEFH

Attributes
  • InstallPath

    Winupdt

  • gencode

    Wr*kEVx/+tEe

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    Sewyer

rc4.plain

Signatures

  • Darkcomet

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

    trojanratdarkcomet
  • Darkcomet family
    darkcomet
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

    defense_evasion
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops file in System32 directory 3 IoCs
  • UPX packed file 4 IoCs

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

    upx
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

    discovery
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    discovery
  • Modifies registry class 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8a640bec052904f0ab47e951cfada0ab.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8a640bec052904f0ab47e951cfada0ab.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2488
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8a640bec052904f0ab47e951cfada0ab.exe" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:332
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8a640bec052904f0ab47e951cfada0ab.exe" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:4800
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:968
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:4956
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8a640bec052904f0ab47e951cfada0ab.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:1520
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 5
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:3144
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Windows\system32\Winupdt
    1⤵
      PID:32
    • C:\Windows\system32\OpenWith.exe
      C:\Windows\system32\OpenWith.exe -Embedding
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4916

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\SysWOW64\Winupdt
      Filesize

      1.4MB

      MD5

      8a640bec052904f0ab47e951cfada0ab

      SHA1

      9acc1ba44e592ac830d6bde60401e570ae17a5af

      SHA256

      cedbf08a6f5a665fed0aad9d1825f4631c99ab2a724f8eec9739f899587d745d

      SHA512

      32e0a82188a5977aefa9a01533edc0e6ee2c43114b18a6fa4c2f9269471d80bc9506bb9a1ba832c5412f7f74288477da7bed65d7126893c27e2edc822759c607

      Download Submit

    • memory/2488-0-0x0000000000400000-0x0000000000566000-memory.dmp

      Filesize

      1.4MB

      Download

    • memory/2488-1-0x0000000002320000-0x0000000002321000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2488-6-0x0000000000400000-0x0000000000566000-memory.dmp

      Filesize

      1.4MB

      Download

    • memory/2488-20-0x0000000000400000-0x0000000000566000-memory.dmp

      Filesize

      1.4MB

      Download