Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 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 48 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:2548
    • C:\Users\Admin\AppData\Local\Temp\dd67f4dcc096eaf0e6d24ffbeb6ab22a_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\dd67f4dcc096eaf0e6d24ffbeb6ab22a_JaffaCakes118.exe
      2⤵
      • Modifies WinLogon for persistence
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1724
      • 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:1832
        • 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:2316
      • 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:2744
        • 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:3008
      • 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:2832
        • 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:2736
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2216

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    677KB

    MD5

    dd67f4dcc096eaf0e6d24ffbeb6ab22a

    SHA1

    fdb679646cf9afacab7aabb723844ddf40d47731

    SHA256

    2695171fe89643108287f83695cbda3d256aeb9ef15c81da2117edf4783848cc

    SHA512

    b819e723848c9462ac2927c9d0e755dbd8116971ed6690be14a1de069256d2866cc87b934cadf922f8c36d994022fc9c02c95a906b1892ce97f7f70a2db2e908

  • memory/1724-19-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1724-10-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1724-16-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1724-5-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1724-20-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1724-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1724-12-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1724-24-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1724-8-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1724-14-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1724-3-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1724-39-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1724-6-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1724-21-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1724-23-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2216-61-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2548-22-0x00000000741D0000-0x000000007477B000-memory.dmp

    Filesize

    5.7MB

  • memory/2548-1-0x00000000741D0000-0x000000007477B000-memory.dmp

    Filesize

    5.7MB

  • memory/2548-2-0x00000000741D0000-0x000000007477B000-memory.dmp

    Filesize

    5.7MB

  • memory/2548-0-0x00000000741D1000-0x00000000741D2000-memory.dmp

    Filesize

    4KB

  • memory/2736-59-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2736-60-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2832-36-0x0000000000320000-0x0000000000360000-memory.dmp

    Filesize

    256KB