Overview

overview

10

Static

static

10

ac8f489480...0c.exe

windows7-x64

10

ac8f489480...0c.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    ac8f48948073402bf3304f9912d2f9785dd5ea346aeb90991f76741b3701570c

  • Size

    668KB

  • Sample

    221128-n9qm7sgc2s

  • MD5

    6886a1bd5f1eb69d90d81f79638bf505

  • SHA1

    fd957160ba84f51f5e29886008fc6eb6d48a3419

  • SHA256

    ac8f48948073402bf3304f9912d2f9785dd5ea346aeb90991f76741b3701570c

  • SHA512

    601b998b4236c63e6d06771a58f66436d744c972ff48671f3fad6626c7dfd4b988c0094583d7e2e4e38b8e0ff633d7f7773c002a76f5b9230e46ed53e21002a9

  • SSDEEP

    12288:A9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hd:kZ1xuVVjfFoynPaVBUR8f+kN10EBf

Score
10/10
darkcometcoolpolevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Coolpol

C2

instealman.hopto.org:1604

Mutex

DC_MUTEX-F6XBUWE

Attributes
  • InstallPath

    Windupdt\winupdate.exe

  • gencode

    5FHnjxyRWMdT

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    winupdater

Targets

    • Target

      ac8f48948073402bf3304f9912d2f9785dd5ea346aeb90991f76741b3701570c

    • Size

      668KB

    • MD5

      6886a1bd5f1eb69d90d81f79638bf505

    • SHA1

      fd957160ba84f51f5e29886008fc6eb6d48a3419

    • SHA256

      ac8f48948073402bf3304f9912d2f9785dd5ea346aeb90991f76741b3701570c

    • SHA512

      601b998b4236c63e6d06771a58f66436d744c972ff48671f3fad6626c7dfd4b988c0094583d7e2e4e38b8e0ff633d7f7773c002a76f5b9230e46ed53e21002a9

    • SSDEEP

      12288:A9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hd:kZ1xuVVjfFoynPaVBUR8f+kN10EBf

    Score
    10/10
    darkcometcoolpolevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

3
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks