Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    26-06-2024 20:37

General

  • Target

    135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe

  • Size

    236KB

  • MD5

    135c8f4f18a0026779cb7b4e52fc42e1

  • SHA1

    9e92a8e586d02ce266e5b93175efe80cfba6b4f3

  • SHA256

    116e7f9544b870e5712a44d3d41e580294b378f2a299f334fe67c975c7389fe0

  • SHA512

    c55d6aaece75bcc6df36b0f97781dc4b6966a65541b8ea75bed2fec0842cb9325e197d8434fbbb09d1bfdc7f4b94ddc33f0cec53e6a12400087165e409247f58

  • SSDEEP

    6144:SmDUj24gqU85IzrFA9NfmDuLpNr5NhWudrWDhL:SqUj2LkizrzDujVNhWucD

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-Y2PF8PW

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    d5FWh5eASSSU

  • install

    true

  • offline_keylogger

    true

  • password

    irckix

  • persistence

    false

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3048
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2268

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Modify Registry

2
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    236KB

    MD5

    135c8f4f18a0026779cb7b4e52fc42e1

    SHA1

    9e92a8e586d02ce266e5b93175efe80cfba6b4f3

    SHA256

    116e7f9544b870e5712a44d3d41e580294b378f2a299f334fe67c975c7389fe0

    SHA512

    c55d6aaece75bcc6df36b0f97781dc4b6966a65541b8ea75bed2fec0842cb9325e197d8434fbbb09d1bfdc7f4b94ddc33f0cec53e6a12400087165e409247f58

  • memory/2268-16-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2268-17-0x0000000000270000-0x0000000000271000-memory.dmp
    Filesize

    4KB

  • memory/2268-18-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2268-20-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2268-27-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/2268-28-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/3048-0-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/3048-1-0x0000000000260000-0x0000000000261000-memory.dmp
    Filesize

    4KB

  • memory/3048-13-0x0000000003860000-0x0000000003918000-memory.dmp
    Filesize

    736KB

  • memory/3048-14-0x0000000000400000-0x00000000004B8000-memory.dmp
    Filesize

    736KB

  • memory/3048-11-0x0000000003860000-0x0000000003918000-memory.dmp
    Filesize

    736KB