Analysis

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

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2024 04:49

General

  • Target

    9fe863122619a4854e49c44024bd70ff_JaffaCakes118.exe

  • Size

    748KB

  • MD5

    9fe863122619a4854e49c44024bd70ff

  • SHA1

    8d329725d1e5d2b428156252a1ce5e40d349d03c

  • SHA256

    f6ccbca4b85a798e2f139539019ad7f5e498c9545c5b6456c6cbf5898a5ac5d6

  • SHA512

    1ab58a6da4752e9234511a527a9e522ba5d2008544e8d475a111cb7a238f5285fe83dc54e1735d28ae86192109c00c8f43c952f55d94b51b77e0d749f874f9b0

  • SSDEEP

    12288:FRYPaes4XBj3zvYJV1p+MKRLehXrI4aip5QUl8SQGnuutvzeiJzLvLkGY6tEaWYm:gaKxb0JV1pGehXRfpzHyyJvV+TYm

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
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 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 2 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 4 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.

  • Checks processor information in registry 2 TTPs 8 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9fe863122619a4854e49c44024bd70ff_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\9fe863122619a4854e49c44024bd70ff_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4932
    • C:\Users\Admin\AppData\Local\Temp\9fe863122619a4854e49c44024bd70ff_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\9fe863122619a4854e49c44024bd70ff_JaffaCakes118.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Drops file in Drivers directory
      • Checks BIOS information in registry
      • Checks computer location settings
      • Adds Run key to start application
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2064
      • C:\Windows\msnmsgr.exe
        "C:\Windows\msnmsgr.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3960
        • C:\Windows\msnmsgr.exe
          "C:\Windows\msnmsgr.exe"
          4⤵
          • Modifies security service
          • Windows security bypass
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Windows security modification
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2360

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3756129449-3121373848-4276368241-1000\88603cb2913a7df3fbd16b5f958e6447_a63d6fdc-08cb-4232-ab51-76cafdcb4d96

    Filesize

    51B

    MD5

    5fc2ac2a310f49c14d195230b91a8885

    SHA1

    90855cc11136ba31758fe33b5cf9571f9a104879

    SHA256

    374e0e2897a7a82e0e44794cad89df0f3cdd7703886239c1fe06d625efd48092

    SHA512

    ab46554df9174b9fe9beba50a640f67534c3812f64d96a1fb8adfdc136dfe730ca2370825cd45b7f87a544d6a58dd868cb5a3a7f42e2789f6d679dbc0fdd52c3

  • C:\Windows\msnmsgr.exe

    Filesize

    748KB

    MD5

    9fe863122619a4854e49c44024bd70ff

    SHA1

    8d329725d1e5d2b428156252a1ce5e40d349d03c

    SHA256

    f6ccbca4b85a798e2f139539019ad7f5e498c9545c5b6456c6cbf5898a5ac5d6

    SHA512

    1ab58a6da4752e9234511a527a9e522ba5d2008544e8d475a111cb7a238f5285fe83dc54e1735d28ae86192109c00c8f43c952f55d94b51b77e0d749f874f9b0

  • memory/2064-4-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2064-5-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2064-6-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2064-7-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2064-8-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2064-9-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2064-72-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-83-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-92-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-87-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-85-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-84-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-81-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-86-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-88-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-89-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-90-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-91-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-82-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-93-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-94-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-95-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-96-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-97-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-98-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-99-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-100-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-101-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2360-102-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB