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
    10-12-2024 06:21

General

  • Target

    dd67f4dcc096eaf0e6d24ffbeb6ab22a_JaffaCakes118.exe

  • Size

    677KB

  • MD5

    dd67f4dcc096eaf0e6d24ffbeb6ab22a

  • SHA1

    fdb679646cf9afacab7aabb723844ddf40d47731

  • SHA256

    2695171fe89643108287f83695cbda3d256aeb9ef15c81da2117edf4783848cc

  • SHA512

    b819e723848c9462ac2927c9d0e755dbd8116971ed6690be14a1de069256d2866cc87b934cadf922f8c36d994022fc9c02c95a906b1892ce97f7f70a2db2e908

  • SSDEEP

    12288:yH/6wKKk1QA0gi8cNbn6I+VluyKSKAZ8dtdFqbFjGbYNeGmkVna5y8S6:yH/6wRL1gRcNbnT64/SjK3dFaabgeDU

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

have-fun.hopto.org:1604

Mutex

DC_MUTEX-LX8E21X

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    k2Cmqg9s09U5

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 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 9 IoCs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dd67f4dcc096eaf0e6d24ffbeb6ab22a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\dd67f4dcc096eaf0e6d24ffbeb6ab22a_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2176
    • C:\Users\Admin\AppData\Local\Temp\dd67f4dcc096eaf0e6d24ffbeb6ab22a_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\dd67f4dcc096eaf0e6d24ffbeb6ab22a_JaffaCakes118.exe
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4268
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\dd67f4dcc096eaf0e6d24ffbeb6ab22a_JaffaCakes118.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2468
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\dd67f4dcc096eaf0e6d24ffbeb6ab22a_JaffaCakes118.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:884
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3352
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:4836
      • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
        "C:\Users\Admin\Documents\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:4796
        • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
          C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4028
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:4128

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    677KB

    MD5

    dd67f4dcc096eaf0e6d24ffbeb6ab22a

    SHA1

    fdb679646cf9afacab7aabb723844ddf40d47731

    SHA256

    2695171fe89643108287f83695cbda3d256aeb9ef15c81da2117edf4783848cc

    SHA512

    b819e723848c9462ac2927c9d0e755dbd8116971ed6690be14a1de069256d2866cc87b934cadf922f8c36d994022fc9c02c95a906b1892ce97f7f70a2db2e908

  • memory/2176-9-0x00000000747A0000-0x0000000074D51000-memory.dmp

    Filesize

    5.7MB

  • memory/2176-1-0x00000000747A0000-0x0000000074D51000-memory.dmp

    Filesize

    5.7MB

  • memory/2176-2-0x00000000747A0000-0x0000000074D51000-memory.dmp

    Filesize

    5.7MB

  • memory/2176-0-0x00000000747A2000-0x00000000747A3000-memory.dmp

    Filesize

    4KB

  • memory/4028-43-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-30-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-47-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-48-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-49-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-45-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-44-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-40-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-42-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-46-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-31-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-41-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-35-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-34-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-39-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-36-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-37-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4028-38-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4128-33-0x0000000000BC0000-0x0000000000BC1000-memory.dmp

    Filesize

    4KB

  • memory/4268-8-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4268-25-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4268-7-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4268-6-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4268-4-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4268-3-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/4796-32-0x0000000073A10000-0x0000000073FC1000-memory.dmp

    Filesize

    5.7MB

  • memory/4796-24-0x0000000073A10000-0x0000000073FC1000-memory.dmp

    Filesize

    5.7MB

  • memory/4796-23-0x0000000073A10000-0x0000000073FC1000-memory.dmp

    Filesize

    5.7MB

  • memory/4796-22-0x0000000073A12000-0x0000000073A13000-memory.dmp

    Filesize

    4KB