Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/10/2024, 05:41

General

  • Target

    461cdeacfa99595adbd61cc33861566d_JaffaCakes118.exe

  • Size

    1.0MB

  • MD5

    461cdeacfa99595adbd61cc33861566d

  • SHA1

    98b03571f2da19742b57b436ee4d70bd3b7f622d

  • SHA256

    bb81c08d7ad157fce394b5bbec82f9809803f1502347cc097b7a689ec4fad8ce

  • SHA512

    e6ce290a30ce7f68145dd63a4f2cc6f00877416805122aa46e853f3ba1bcea565a6cbdfddfcee534e0dd913f3b0d885890d13943980ab7bba3999aee9ae79e93

  • SSDEEP

    24576:aqdhnAVHAJkV38Hk00IltWhi49IhakMbTwSAERhqu6khuXau7P:rhNMMHkQtW1+hAbREuVhu17P

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

net-updetor.zapto.org:1604

Mutex

DC_MUTEX-F54S21D

Attributes
  • InstallPath

    MSDCSC\jhhhhsc.exe

  • gencode

    AHTSyKKsRTzP

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    ggkhjgkfjhljgfh

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
  • Checks BIOS information in registry 2 TTPs 4 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • UPX packed file 22 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Modifies registry class 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 52 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\461cdeacfa99595adbd61cc33861566d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\461cdeacfa99595adbd61cc33861566d_JaffaCakes118.exe"
    1⤵
    • Checks BIOS information in registry
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2124
    • C:\Users\Admin\AppData\Local\Temp\461cdeacfa99595adbd61cc33861566d_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\461cdeacfa99595adbd61cc33861566d_JaffaCakes118.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:548
      • C:\Users\Admin\AppData\Local\Temp\461cdeacfa99595adbd61cc33861566d_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\461cdeacfa99595adbd61cc33861566d_JaffaCakes118.exe"
        3⤵
        • 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:2460
        • C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\jhhhhsc.exe
          "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\jhhhhsc.exe"
          4⤵
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Modifies registry class
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4224
          • C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\jhhhhsc.exe
            "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\jhhhhsc.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1924
            • C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\jhhhhsc.exe
              "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\jhhhhsc.exe"
              6⤵
              • Modifies firewall policy service
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              PID:1656

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\jhhhhsc.exe

    Filesize

    1.0MB

    MD5

    461cdeacfa99595adbd61cc33861566d

    SHA1

    98b03571f2da19742b57b436ee4d70bd3b7f622d

    SHA256

    bb81c08d7ad157fce394b5bbec82f9809803f1502347cc097b7a689ec4fad8ce

    SHA512

    e6ce290a30ce7f68145dd63a4f2cc6f00877416805122aa46e853f3ba1bcea565a6cbdfddfcee534e0dd913f3b0d885890d13943980ab7bba3999aee9ae79e93

  • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1045960512-3948844814-3059691613-1000\88603cb2913a7df3fbd16b5f958e6447_a4172161-d53d-48af-8f36-a00b057e74d4

    Filesize

    51B

    MD5

    5fc2ac2a310f49c14d195230b91a8885

    SHA1

    90855cc11136ba31758fe33b5cf9571f9a104879

    SHA256

    374e0e2897a7a82e0e44794cad89df0f3cdd7703886239c1fe06d625efd48092

    SHA512

    ab46554df9174b9fe9beba50a640f67534c3812f64d96a1fb8adfdc136dfe730ca2370825cd45b7f87a544d6a58dd868cb5a3a7f42e2789f6d679dbc0fdd52c3

  • memory/548-18-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/548-28-0x0000000000410000-0x00000000004D9000-memory.dmp

    Filesize

    804KB

  • memory/548-30-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/548-21-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/1656-152-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/1656-153-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/1656-141-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/1656-148-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/1656-144-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/1656-154-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/1656-143-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/1656-137-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/1656-138-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/1656-149-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/1656-145-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/1656-146-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/1656-147-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/1656-151-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/1656-142-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/1656-150-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/1924-119-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/1924-127-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/2124-15-0x00000000006F0000-0x0000000000739000-memory.dmp

    Filesize

    292KB

  • memory/2124-34-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2124-37-0x00000000006F0000-0x0000000000739000-memory.dmp

    Filesize

    292KB

  • memory/2124-0-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2124-14-0x00000000006F0000-0x0000000000739000-memory.dmp

    Filesize

    292KB

  • memory/2124-9-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2124-8-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2124-10-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/2124-11-0x00000000006F0000-0x0000000000739000-memory.dmp

    Filesize

    292KB

  • memory/2124-7-0x00000000006F0000-0x0000000000739000-memory.dmp

    Filesize

    292KB

  • memory/2124-2-0x00000000006F0000-0x0000000000739000-memory.dmp

    Filesize

    292KB

  • memory/2460-26-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/2460-38-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/2460-24-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/2460-33-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/2460-139-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/2460-39-0x0000000000400000-0x00000000004BB000-memory.dmp

    Filesize

    748KB

  • memory/4224-114-0x0000000001FD0000-0x0000000002019000-memory.dmp

    Filesize

    292KB

  • memory/4224-110-0x0000000001FD0000-0x0000000002019000-memory.dmp

    Filesize

    292KB

  • memory/4224-108-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/4224-101-0x0000000001FD0000-0x0000000002019000-memory.dmp

    Filesize

    292KB

  • memory/4224-107-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/4224-109-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB

  • memory/4224-134-0x0000000001FD0000-0x0000000002019000-memory.dmp

    Filesize

    292KB

  • memory/4224-136-0x0000000000400000-0x00000000004BD000-memory.dmp

    Filesize

    756KB