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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02/01/2025, 09:50

General

  • Target

    JaffaCakes118_643aeee51a1f63290748a405d15a37d0.exe

  • Size

    742KB

  • MD5

    643aeee51a1f63290748a405d15a37d0

  • SHA1

    f585d6199e88ca686bd52d922eb939d74ba83611

  • SHA256

    b4a2d5dc782af456e9d2c3703cdabb4e3fe501c0eae77361af57d97285042782

  • SHA512

    cfac2c01b577be39ce578d32e4b1360ea84e2498d132dca02126add2c655ec8e0cca4650206d954eb57e615d78b28974a8b66ba2cd2f0dbfc3c6820761fe086f

  • SSDEEP

    12288:IFLlJnnbWOtz6sVJhvaz1Qc/WdI//vfM4qwrbkniafLo6vUTyl0w/q9jJ:o3nbWmJVJFwSddIXvfhqbiaxvRxq9

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
  • Windows security bypass 2 TTPs 2 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

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

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_643aeee51a1f63290748a405d15a37d0.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_643aeee51a1f63290748a405d15a37d0.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2196
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2120
      • 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:2712
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      2⤵
      • Windows security bypass
      • Executes dropped EXE
      • Windows security modification
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1740
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        3⤵
        • Windows security bypass
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:892

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat

    Filesize

    113B

    MD5

    e354513348bf27e4e15dacd843019a91

    SHA1

    0fd9c42bdf1f2dbe249491b61e6b88f6746b7829

    SHA256

    b4c76e4d5197c62e9a43c9d4ec71162d94c95f442245268351d7b92800346cfc

    SHA512

    b73a4bc76ad63980c76ffa19fe303bfb7d8fef336489fb98b597d478eed2843c18381e712abc857d585881e68ca0da2d3292eddadcba76b9cdec8fd512abc858

  • \Users\Admin\Documents\MSDCSC\msdcsc.exe

    Filesize

    742KB

    MD5

    643aeee51a1f63290748a405d15a37d0

    SHA1

    f585d6199e88ca686bd52d922eb939d74ba83611

    SHA256

    b4a2d5dc782af456e9d2c3703cdabb4e3fe501c0eae77361af57d97285042782

    SHA512

    cfac2c01b577be39ce578d32e4b1360ea84e2498d132dca02126add2c655ec8e0cca4650206d954eb57e615d78b28974a8b66ba2cd2f0dbfc3c6820761fe086f

  • memory/892-23-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/1740-20-0x00000000003E0000-0x00000000003E1000-memory.dmp

    Filesize

    4KB

  • memory/1740-24-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB

  • memory/2196-3-0x00000000003E0000-0x00000000003E1000-memory.dmp

    Filesize

    4KB

  • memory/2196-19-0x0000000000400000-0x00000000004C3000-memory.dmp

    Filesize

    780KB