Overview

overview

10

Static

static

d554af13be...30.exe

windows7-x64

10

d554af13be...30.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    d554af13be05f937bf8445f164b2331f78c6d6caa0d8e6c7daa4b6306a41d630

  • Size

    723KB

  • Sample

    230129-1v7z6afh4w

  • MD5

    99bbae87448fa2afbe14f94c8c4d6c35

  • SHA1

    711df984d7b34528783726288bc40c412c2e96f2

  • SHA256

    d554af13be05f937bf8445f164b2331f78c6d6caa0d8e6c7daa4b6306a41d630

  • SHA512

    2d8b67a9f4ecb2a82965901441a784557602e0005be5dfd3c022e135a3dee677f61f48f1301dd7111f4a54905854d81f4e2afec886e32b611fe742c26cd2832c

  • SSDEEP

    12288:1RZ+IoG/n9IQxW3OBsemwxbFzSq0JmNxJWK/sd5JazbuOg4mCOiu8pMbBi:92G/nvxW3WbNZvLQIzbu58Ojbdi

Score
10/10
darkcometsazanpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Sazan

C2

0.tcp.ngrok.io:19553

Mutex

DC_MUTEX-LQR29VS

Attributes
  • InstallPath

    MSDCSC\WindowsUpdater.exe

  • gencode

    90gqTdCABW5t

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    WindowsUpdater

Targets

    • Target

      d554af13be05f937bf8445f164b2331f78c6d6caa0d8e6c7daa4b6306a41d630

    • Size

      723KB

    • MD5

      99bbae87448fa2afbe14f94c8c4d6c35

    • SHA1

      711df984d7b34528783726288bc40c412c2e96f2

    • SHA256

      d554af13be05f937bf8445f164b2331f78c6d6caa0d8e6c7daa4b6306a41d630

    • SHA512

      2d8b67a9f4ecb2a82965901441a784557602e0005be5dfd3c022e135a3dee677f61f48f1301dd7111f4a54905854d81f4e2afec886e32b611fe742c26cd2832c

    • SSDEEP

      12288:1RZ+IoG/n9IQxW3OBsemwxbFzSq0JmNxJWK/sd5JazbuOg4mCOiu8pMbBi:92G/nvxW3WbNZvLQIzbu58Ojbdi

    Score
    10/10
    darkcometsazanpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • 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

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks