Overview

overview

10

Static

static

e7933276eb...ef.exe

windows7-x64

10

e7933276eb...ef.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    e7933276eb9d865fa67c4ea54cd1b2e37601e564868bf320f3d66f57de3451ef

  • Size

    1011KB

  • Sample

    221011-satb9saff9

  • MD5

    118f3267896819c818690345021a07cc

  • SHA1

    fe36f0a4971369a0bf2024b7a94f83b80bbdad66

  • SHA256

    e7933276eb9d865fa67c4ea54cd1b2e37601e564868bf320f3d66f57de3451ef

  • SHA512

    4e6cfc8a47b9c3fa5470116bfd7b7c4ab3112784ab0ce894a49ecacbf0089b3ba8a3b3f75362e2c8ab5a1f36f11c5d513e8c7da602569df4e8d639648e15aed0

  • SSDEEP

    24576:9FhbB1+c8ozcFotnCDcyKvnpNL5vw3rqpp:9Fhy2zcFotCwyKPZw7c

Score
10/10
darkcomethfevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

HF

C2

nexux.no-ip.info:1604

Mutex

DC_MUTEX-29JYWN0

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    BGM1JKYPgyol

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      e7933276eb9d865fa67c4ea54cd1b2e37601e564868bf320f3d66f57de3451ef

    • Size

      1011KB

    • MD5

      118f3267896819c818690345021a07cc

    • SHA1

      fe36f0a4971369a0bf2024b7a94f83b80bbdad66

    • SHA256

      e7933276eb9d865fa67c4ea54cd1b2e37601e564868bf320f3d66f57de3451ef

    • SHA512

      4e6cfc8a47b9c3fa5470116bfd7b7c4ab3112784ab0ce894a49ecacbf0089b3ba8a3b3f75362e2c8ab5a1f36f11c5d513e8c7da602569df4e8d639648e15aed0

    • SSDEEP

      24576:9FhbB1+c8ozcFotnCDcyKvnpNL5vw3rqpp:9Fhy2zcFotCwyKPZw7c

    Score
    10/10
    darkcomethfevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      evasion

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      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

    • Suspicious use of SetThreadContext

    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