Overview

overview

10

Static

static

bc7f0ec835...59.exe

windows7-x64

10

bc7f0ec835...59.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    bc7f0ec83577f07d0e4238401dc0e4f09d1d23bc45b05dd6cf59e60a9e51db59

  • Size

    452KB

  • Sample

    221123-sxzskace42

  • MD5

    2e3ab1bbf15e53f6b7157c2d75808562

  • SHA1

    2830a10c16acfb19d06ee71c366f699068507e36

  • SHA256

    bc7f0ec83577f07d0e4238401dc0e4f09d1d23bc45b05dd6cf59e60a9e51db59

  • SHA512

    ac0c57ef76ce7d06a78f71f1a81335fc110265b7c3f99b1e0ceed332045044fa6442dc02b90c7b248f0381b8628ce0b3956c2a0051f3f6d87e15a93c88f24665

  • SSDEEP

    12288:8mPNiMwOB3vWON7iPsPNIP4Xvfr/6kQCsfbin:8iNizOB/ECK4XvfD+Csbin

Score
10/10
darkcometvictimevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Victim

C2

jrusse.no-ip.org:5050

Mutex

DC_MUTEX-SANCFCW

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    Xl6PgidaJaTh

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    rundll32

Targets

    • Target

      bc7f0ec83577f07d0e4238401dc0e4f09d1d23bc45b05dd6cf59e60a9e51db59

    • Size

      452KB

    • MD5

      2e3ab1bbf15e53f6b7157c2d75808562

    • SHA1

      2830a10c16acfb19d06ee71c366f699068507e36

    • SHA256

      bc7f0ec83577f07d0e4238401dc0e4f09d1d23bc45b05dd6cf59e60a9e51db59

    • SHA512

      ac0c57ef76ce7d06a78f71f1a81335fc110265b7c3f99b1e0ceed332045044fa6442dc02b90c7b248f0381b8628ce0b3956c2a0051f3f6d87e15a93c88f24665

    • SSDEEP

      12288:8mPNiMwOB3vWON7iPsPNIP4Xvfr/6kQCsfbin:8iNizOB/ECK4XvfD+Csbin

    Score
    10/10
    darkcometvictimevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Executes dropped EXE

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1
T1064

Persistence

Winlogon Helper DLL

1
T1004

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Hidden Files and Directories

2
T1158

Scripting

1
T1064

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks