Overview

overview

10

Static

static

5270cd6488...44.exe

windows7_x64

10

5270cd6488...44.exe

windows10_x64

10

Sharing

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General

  • Target

    5270cd6488da8841fbe6f1fa6b91f7b27be14bfcd52d1f2f3925cc2973ef4944

  • Size

    943KB

  • Sample

    201109-rcbnv9rvf2

  • MD5

    73bcf2b04c92a924efbf970ee4b51f27

  • SHA1

    9adc5d462452977b5f0a803e909eac78b4b3ae5a

  • SHA256

    5270cd6488da8841fbe6f1fa6b91f7b27be14bfcd52d1f2f3925cc2973ef4944

  • SHA512

    4ab52efc47766ea073f5501767f709829a4b178bc5fd823c932c66f57e1a4cf27726ff9c197a662b7dfbe5a21449692da8fcc79f3e95cb313d6969e18af394d5

Score
10/10
darkcometsazanevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Sazan

C2

127.0.0.1:1604

Mutex

DC_MUTEX-19R9P6E

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    FExQJU0T6CCU

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      5270cd6488da8841fbe6f1fa6b91f7b27be14bfcd52d1f2f3925cc2973ef4944

    • Size

      943KB

    • MD5

      73bcf2b04c92a924efbf970ee4b51f27

    • SHA1

      9adc5d462452977b5f0a803e909eac78b4b3ae5a

    • SHA256

      5270cd6488da8841fbe6f1fa6b91f7b27be14bfcd52d1f2f3925cc2973ef4944

    • SHA512

      4ab52efc47766ea073f5501767f709829a4b178bc5fd823c932c66f57e1a4cf27726ff9c197a662b7dfbe5a21449692da8fcc79f3e95cb313d6969e18af394d5

    Score
    10/10
    darkcometsazanevasionpersistencerattrojan

    • 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

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

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

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks