Analysis

  • max time kernel
    151s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    19/10/2022, 16:27

General

  • Target

    317fcd55d08d6df4d0d095f55817b2d9d562b32c76bd16da99336a245fd78f45.exe

  • Size

    1.3MB

  • MD5

    a131afc96a8738a9202b91c2761d260f

  • SHA1

    d3b9f7709bac6995acc46e8e28dd45e993b12797

  • SHA256

    317fcd55d08d6df4d0d095f55817b2d9d562b32c76bd16da99336a245fd78f45

  • SHA512

    5e19b162fe31c7ad693a5614eb969e12a31c5c5c7bc47ff464f3e83967a9ae6e5dd0d9783ef5f855c864a9638a4143b59e82378a1fbf92a4b200a249eccdfed9

  • SSDEEP

    24576:iRmJkcoQricOIQxiZY1iaqcqCm9loQZ4jQWg8ovinj931Oz:3JZoQrbTFZY1iaqRos4S4n91i

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

iiandlez.no-ip.biz:1604

Mutex

DC_MUTEX-LHA82F4

Attributes
  • gencode

    Rk4tghGjBxmc

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • AutoIT Executable 2 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\317fcd55d08d6df4d0d095f55817b2d9d562b32c76bd16da99336a245fd78f45.exe
    "C:\Users\Admin\AppData\Local\Temp\317fcd55d08d6df4d0d095f55817b2d9d562b32c76bd16da99336a245fd78f45.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1768
    • C:\Users\Admin\AppData\Local\Temp\317fcd55d08d6df4d0d095f55817b2d9d562b32c76bd16da99336a245fd78f45.exe
      "C:\Users\Admin\AppData\Local\Temp\317fcd55d08d6df4d0d095f55817b2d9d562b32c76bd16da99336a245fd78f45.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:676
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
    1⤵
    • Suspicious use of FindShellTrayWindow
    PID:2040

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\317fcd55d08d6df4d0d095f55817b2d9d562b32c76bd16da99336a245fd78f45.exe

          Filesize

          1.3MB

          MD5

          a131afc96a8738a9202b91c2761d260f

          SHA1

          d3b9f7709bac6995acc46e8e28dd45e993b12797

          SHA256

          317fcd55d08d6df4d0d095f55817b2d9d562b32c76bd16da99336a245fd78f45

          SHA512

          5e19b162fe31c7ad693a5614eb969e12a31c5c5c7bc47ff464f3e83967a9ae6e5dd0d9783ef5f855c864a9638a4143b59e82378a1fbf92a4b200a249eccdfed9

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

          Filesize

          40KB

          MD5

          3435837d9e0967cc0b13170c07fda108

          SHA1

          9c0ae330ea298735f185d2bc7f37b457928dcfda

          SHA256

          4ad29c938f7f7cf15c60ffd65c25563cc49c14e2ba851f0c6cfd760ca1414ea5

          SHA512

          6ad221a73ccf9fc48768f0370441c869276d95eb171b37749efb1a0858fc87f48a43b1346f39ec6f09c9c94d3571a611bfdc2c29aca5fe555406d78f6e5181ce

        • \Users\Admin\AppData\Local\Temp\317fcd55d08d6df4d0d095f55817b2d9d562b32c76bd16da99336a245fd78f45.exe

          Filesize

          1.3MB

          MD5

          a131afc96a8738a9202b91c2761d260f

          SHA1

          d3b9f7709bac6995acc46e8e28dd45e993b12797

          SHA256

          317fcd55d08d6df4d0d095f55817b2d9d562b32c76bd16da99336a245fd78f45

          SHA512

          5e19b162fe31c7ad693a5614eb969e12a31c5c5c7bc47ff464f3e83967a9ae6e5dd0d9783ef5f855c864a9638a4143b59e82378a1fbf92a4b200a249eccdfed9

        • memory/676-57-0x00000000000C0000-0x0000000000172000-memory.dmp

          Filesize

          712KB

        • memory/676-59-0x00000000000C0000-0x0000000000172000-memory.dmp

          Filesize

          712KB

        • memory/676-62-0x00000000000C0000-0x0000000000172000-memory.dmp

          Filesize

          712KB

        • memory/676-64-0x00000000000C0000-0x0000000000172000-memory.dmp

          Filesize

          712KB

        • memory/676-65-0x00000000000C0000-0x0000000000172000-memory.dmp

          Filesize

          712KB

        • memory/676-67-0x00000000000C0000-0x0000000000172000-memory.dmp

          Filesize

          712KB

        • memory/1768-54-0x0000000075931000-0x0000000075933000-memory.dmp

          Filesize

          8KB