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Analysis

  • max time kernel
    188s
  • max time network
    190s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2022, 09:18

General

  • Target

    027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe

  • Size

    727KB

  • MD5

    58bd0cb3fb9afa61cdaa25bb0e8a6de0

  • SHA1

    c70b6052af8f72d1261315b11d79d1f5ed644e1f

  • SHA256

    027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194

  • SHA512

    1949b34e1c6712dff92052964f7a990de17ba1e94bb67c5bc0268e9549d32b434a0b4080b4a4369434f6965c58b02cd68b8861ab889c390742f6218aed3314ee

  • SSDEEP

    12288:h9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h75LF/Mw:bZ1xuVVjfFoynPaVBUR8f+kN10EB5VlV

Malware Config

Extracted

Family

darkcomet

Botnet

ÖÜÜÜÍíÉ ÌÏíÏÉ

C2

memateiraq.no-ip.biz:1604

Mutex

DC_MUTEX-HJG940C

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    7NAj1Mr7bd6y

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe
    "C:\Users\Admin\AppData\Local\Temp\027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:920
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4800
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
          PID:3320

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      727KB

      MD5

      58bd0cb3fb9afa61cdaa25bb0e8a6de0

      SHA1

      c70b6052af8f72d1261315b11d79d1f5ed644e1f

      SHA256

      027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194

      SHA512

      1949b34e1c6712dff92052964f7a990de17ba1e94bb67c5bc0268e9549d32b434a0b4080b4a4369434f6965c58b02cd68b8861ab889c390742f6218aed3314ee

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

      Filesize

      727KB

      MD5

      58bd0cb3fb9afa61cdaa25bb0e8a6de0

      SHA1

      c70b6052af8f72d1261315b11d79d1f5ed644e1f

      SHA256

      027eed8da627e8af40b14b85de849ca8cc7991767cfd8a98c4bc0ae8cc9b5194

      SHA512

      1949b34e1c6712dff92052964f7a990de17ba1e94bb67c5bc0268e9549d32b434a0b4080b4a4369434f6965c58b02cd68b8861ab889c390742f6218aed3314ee