Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-07-2024 13:58

General

  • Target

    7459dabde9a71618f63bde5999c81138_JaffaCakes118.exe

  • Size

    343KB

  • MD5

    7459dabde9a71618f63bde5999c81138

  • SHA1

    244848e90107432bda5e929993193df7244dd724

  • SHA256

    cc412889e3b6f4c3eb2935e2378d72f4b22949ed62024b53d401856b64facdc2

  • SHA512

    35ff9ac4ae4dbd75707e309f82c42d48c9bcc26ca863d849a9143a6e13474c8b147c38c04359a1da777be35ccdc28b8074e2ca910c86586914028e038a27bd4d

  • SSDEEP

    6144:JQ/W2mGZyRhTXMBCqyh7tP7H7xV1tBMDheWJ0S+x:JQODGIYBCjh7V7HFV1tCVnJ07x

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

loveayada.zapto.org:443

Mutex

DC_MUTEX-ZNQTKSY

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    hqypCTfXL65a

  • install

    true

  • offline_keylogger

    true

  • password

    0123456789

  • persistence

    true

  • 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
  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • UPX packed file 27 IoCs

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

  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7459dabde9a71618f63bde5999c81138_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\7459dabde9a71618f63bde5999c81138_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5040
    • C:\Users\Admin\AppData\Local\Temp\7459dabde9a71618f63bde5999c81138_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\7459dabde9a71618f63bde5999c81138_JaffaCakes118.exe
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2084
      • C:\MSDCSC\msdcsc.exe
        "C:\MSDCSC\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4828
        • C:\MSDCSC\msdcsc.exe
          C:\MSDCSC\msdcsc.exe
          4⤵
          • Modifies firewall policy service
          • Modifies security service
          • Windows security bypass
          • Executes dropped EXE
          • Windows security modification
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • System policy modification
          PID:5008

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSDCSC\msdcsc.exe

    Filesize

    343KB

    MD5

    7459dabde9a71618f63bde5999c81138

    SHA1

    244848e90107432bda5e929993193df7244dd724

    SHA256

    cc412889e3b6f4c3eb2935e2378d72f4b22949ed62024b53d401856b64facdc2

    SHA512

    35ff9ac4ae4dbd75707e309f82c42d48c9bcc26ca863d849a9143a6e13474c8b147c38c04359a1da777be35ccdc28b8074e2ca910c86586914028e038a27bd4d

  • memory/2084-82-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2084-13-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2084-9-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2084-18-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2084-17-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2084-15-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2084-8-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/4828-79-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/5008-106-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-100-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-88-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-107-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-89-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-105-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-104-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-103-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-102-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-101-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-99-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-98-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-95-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-91-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-92-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-93-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-94-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-90-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-96-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5008-97-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/5040-2-0x0000000074992000-0x0000000074993000-memory.dmp

    Filesize

    4KB

  • memory/5040-3-0x0000000074990000-0x0000000074F41000-memory.dmp

    Filesize

    5.7MB

  • memory/5040-12-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/5040-0-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/5040-4-0x0000000074990000-0x0000000074F41000-memory.dmp

    Filesize

    5.7MB

  • memory/5040-1-0x00000000004F0000-0x00000000004F2000-memory.dmp

    Filesize

    8KB

  • memory/5040-5-0x0000000074990000-0x0000000074F41000-memory.dmp

    Filesize

    5.7MB

  • memory/5040-6-0x0000000074990000-0x0000000074F41000-memory.dmp

    Filesize

    5.7MB

  • memory/5040-7-0x0000000074990000-0x0000000074F41000-memory.dmp

    Filesize

    5.7MB

  • memory/5040-14-0x0000000074990000-0x0000000074F41000-memory.dmp

    Filesize

    5.7MB