Overview

overview

10

Static

static

9d2c41062b...01.exe

windows7-x64

10

9d2c41062b...01.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    9d2c41062b7f7c4f9a57bdb5e6f9f968282655bcd5558155d291d39f48159201

  • Size

    408KB

  • Sample

    221123-sx43aace47

  • MD5

    c171355f55121ff719f5154f26a62a99

  • SHA1

    804d0e75559bd804c199dfa87f5e2c76dfa552a5

  • SHA256

    9d2c41062b7f7c4f9a57bdb5e6f9f968282655bcd5558155d291d39f48159201

  • SHA512

    c23081efe058d881480d9f729993c9d40f538bf724b8edcfbc7f7b7abb7595b9fc0b27fbeb413bf340e56320ea08b5e3c0c94a858af3a64658289da41b08cc8f

  • SSDEEP

    12288:kFj5x0oVQYQMhYfDiji+D17iOeklNv/VnhGqa:Aj3Kcji+DZreklNvthJ

Score
10/10
darkcomettest-sucessfulevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Test-Sucessful

C2

spitzfire.no-ip.org:25565

Mutex

DC_MUTEX-NYVYCRM

Attributes
  • InstallPath

    MSDCSC\System32Updater.exe

  • gencode

    fGhl1lsjQLhX

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    System32Updaterdll

Targets

    • Target

      9d2c41062b7f7c4f9a57bdb5e6f9f968282655bcd5558155d291d39f48159201

    • Size

      408KB

    • MD5

      c171355f55121ff719f5154f26a62a99

    • SHA1

      804d0e75559bd804c199dfa87f5e2c76dfa552a5

    • SHA256

      9d2c41062b7f7c4f9a57bdb5e6f9f968282655bcd5558155d291d39f48159201

    • SHA512

      c23081efe058d881480d9f729993c9d40f538bf724b8edcfbc7f7b7abb7595b9fc0b27fbeb413bf340e56320ea08b5e3c0c94a858af3a64658289da41b08cc8f

    • SSDEEP

      12288:kFj5x0oVQYQMhYfDiji+D17iOeklNv/VnhGqa:Aj3Kcji+DZreklNvthJ

    Score
    10/10
    darkcomettest-sucessfulevasionpersistencerattrojan

    • 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

    • Drops file in System32 directory

    • 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