Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 03:56

General

  • Target

    3226f5e44317bd84e9ea048972e42b756a856c358defe87e737fc02e4f9ad78f.exe

  • Size

    658KB

  • MD5

    41140b64da737d999d6b06763b8de287

  • SHA1

    ec5ebd2a21e81961b97f8ddbde0ac5b28b452f49

  • SHA256

    3226f5e44317bd84e9ea048972e42b756a856c358defe87e737fc02e4f9ad78f

  • SHA512

    dd880450a8b477b24801dd8e1b067b1b7a0604367ac8c861aad86a89270507ee5dfc989f382ca633908e41949e5561860e5991f69ba2cab356915df095f84c50

  • SSDEEP

    12288:y9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/ht:eZ1xuVVjfFoynPaVBUR8f+kN10EBr

Malware Config

Extracted

Family

darkcomet

Botnet

asdf

C2

noname1231.no-ip.org:1604

Mutex

DCMIN_MUTEX-2XGL6JH

Attributes
  • InstallPath

    DCSCMIN\IMDCSC.exe

  • gencode

    hDbhnXrnGv4R

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    DarkComet RAT

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 1 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3226f5e44317bd84e9ea048972e42b756a856c358defe87e737fc02e4f9ad78f.exe
    "C:\Users\Admin\AppData\Local\Temp\3226f5e44317bd84e9ea048972e42b756a856c358defe87e737fc02e4f9ad78f.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:4984
    • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
      "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1656

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

    Filesize

    658KB

    MD5

    41140b64da737d999d6b06763b8de287

    SHA1

    ec5ebd2a21e81961b97f8ddbde0ac5b28b452f49

    SHA256

    3226f5e44317bd84e9ea048972e42b756a856c358defe87e737fc02e4f9ad78f

    SHA512

    dd880450a8b477b24801dd8e1b067b1b7a0604367ac8c861aad86a89270507ee5dfc989f382ca633908e41949e5561860e5991f69ba2cab356915df095f84c50

  • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

    Filesize

    658KB

    MD5

    41140b64da737d999d6b06763b8de287

    SHA1

    ec5ebd2a21e81961b97f8ddbde0ac5b28b452f49

    SHA256

    3226f5e44317bd84e9ea048972e42b756a856c358defe87e737fc02e4f9ad78f

    SHA512

    dd880450a8b477b24801dd8e1b067b1b7a0604367ac8c861aad86a89270507ee5dfc989f382ca633908e41949e5561860e5991f69ba2cab356915df095f84c50

  • memory/1656-132-0x0000000000000000-mapping.dmp