Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    20-10-2024 21:03

General

  • Target

    4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe

  • Size

    2.0MB

  • MD5

    4ab17dc92cf4aa8230d6fac5931d9564

  • SHA1

    1a2c1029f0baffe08e92373292739d616607fea0

  • SHA256

    c2a7156cc2c645df95d6af8f2ee7ace159f3772149213f896bc82d9bc8c7a5d2

  • SHA512

    56e43b5f9ce4744ea8a4c4568e6234765b6737324122d1fd430db70c2bafd1a81f20d5db5cacb9b631eb4e3b2cc08c031c8b267f954b098791da48e91b4c2654

  • SSDEEP

    49152:IyDIihz4W7kvWDQA0wMe7TtCqNY0Wi7zkxhb:Ij84WAvW10wMe7TtjY01Ix

Malware Config

Extracted

Family

darkcomet

Botnet

Guest1

C2

Germanytop.no-ip.org:1604

Mutex

DC_MUTEX-GJGZ65W

Attributes
  • InstallPath

    Local\Temp\wvrss.exe

  • gencode

    cadhLisrwVbS

  • install

    true

  • offline_keylogger

    true

  • password

    sexyadmin

  • persistence

    false

  • reg_key

    WindowsFirewall

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 1 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.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Identifies Wine through registry keys
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2392
    • C:\Users\Admin\AppData\Local\Temp\plugtemp\svchost.exe
      C:\Users\Admin\AppData\Local\Temp\\plugtemp\svchost.exe
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2028
      • C:\Users\Admin\AppData\Roaming\Local\Temp\wvrss.exe
        "C:\Users\Admin\AppData\Roaming\Local\Temp\wvrss.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1292
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2700

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Foto4pussy.jpg

    Filesize

    254KB

    MD5

    cbabb4f2d1fa4b26ec76e5b0496f98b9

    SHA1

    dd66f7bfeb513983eb78b09b0512196c8b4cc84d

    SHA256

    d6e3c68c4cf7320b071ddbaa4daaf5494d55f6f44727d10a2182c99688eabe9f

    SHA512

    f35641ae523c6b6cb7c670871988ce069869db5d69ace198f953e8067c8ee935e64d72136e9f24b5679668e97942b30a80effede7ea08762d95d8200bad4ff93

  • \Users\Admin\AppData\Local\Temp\plugtemp\svchost.exe

    Filesize

    1.1MB

    MD5

    34aa912defa18c2c129f1e09d75c1d7e

    SHA1

    9c3046324657505a30ecd9b1fdb46c05bde7d470

    SHA256

    6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

    SHA512

    d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

  • memory/2028-17-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2028-15-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2028-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2028-24-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2028-22-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2028-19-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2028-9-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2028-7-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2028-13-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2028-11-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2028-5-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2028-36-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2392-38-0x0000000009ED0000-0x0000000009ED2000-memory.dmp

    Filesize

    8KB

  • memory/2392-0-0x0000000000400000-0x00000000007B6000-memory.dmp

    Filesize

    3.7MB

  • memory/2700-39-0x0000000000160000-0x0000000000162000-memory.dmp

    Filesize

    8KB