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Overview

overview

10

Static

static

8

4c44568cc7...2c.exe

windows7-x64

10

4c44568cc7...2c.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    135s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2022, 16:03

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General

  • Target

    4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe

  • Size

    330KB

  • MD5

    170a9310f4fee2a3344beaa63a0bd3d1

  • SHA1

    435eb06cf036329dbc3e310fb3e9629c6c68f8e7

  • SHA256

    4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c

  • SHA512

    4d3e89935a7a6bfd061d176d40f54d7b8f46e5dab0ecd59f1d9291eaea3f8882acad326aa8e6e6bbaa1ce9a3b827f2d2d349e435ee75ce7c1fc82e2a9697fa5c

  • SSDEEP

    6144:ojFy93LU92VxOtVflFud4TnxcpPTASCmqMorHwMYoSG:oFy9bPQZlFjrG0ZmYbw1oS

Score
10/10
darkcometkellypersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Kelly

C2

90.34.201.154:1604

Mutex

DCMIN_MUTEX-MY3VXBN

Attributes
  • InstallPath

    DCSCMIN\IMDCSC.exe

  • gencode

    aAPjs3ZWKKtp

  • 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.

    trojanratdarkcomet
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Executes dropped EXE 1 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • 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
    persistence
  • 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\4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
    "C:\Users\Admin\AppData\Local\Temp\4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.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:4040
    • C:\Users\Admin\AppData\Local\Temp\DCSCMIN\IMDCSC.exe
      "C:\Users\Admin\AppData\Local\Temp\DCSCMIN\IMDCSC.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4100

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\DCSCMIN\IMDCSC.exe
    Filesize

    330KB

    MD5

    170a9310f4fee2a3344beaa63a0bd3d1

    SHA1

    435eb06cf036329dbc3e310fb3e9629c6c68f8e7

    SHA256

    4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c

    SHA512

    4d3e89935a7a6bfd061d176d40f54d7b8f46e5dab0ecd59f1d9291eaea3f8882acad326aa8e6e6bbaa1ce9a3b827f2d2d349e435ee75ce7c1fc82e2a9697fa5c

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  • C:\Users\Admin\AppData\Local\Temp\DCSCMIN\IMDCSC.exe
    Filesize

    330KB

    MD5

    170a9310f4fee2a3344beaa63a0bd3d1

    SHA1

    435eb06cf036329dbc3e310fb3e9629c6c68f8e7

    SHA256

    4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c

    SHA512

    4d3e89935a7a6bfd061d176d40f54d7b8f46e5dab0ecd59f1d9291eaea3f8882acad326aa8e6e6bbaa1ce9a3b827f2d2d349e435ee75ce7c1fc82e2a9697fa5c

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  • memory/4040-132-0x0000000000400000-0x00000000004E8000-memory.dmp

    Filesize

    928KB

    Download

  • memory/4040-137-0x0000000000400000-0x00000000004E8000-memory.dmp

    Filesize

    928KB

    Download

  • memory/4100-136-0x0000000000400000-0x00000000004E8000-memory.dmp

    Filesize

    928KB

    Download