Overview

overview

10

Static

static

10

cb5fffb80e...2c.exe

windows7-x64

10

cb5fffb80e...2c.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    cb5fffb80e19de3bbebb625652ce3aa313d9a631ba98bb9b8057c429ebaff12c

  • Size

    690KB

  • Sample

    221011-x5qxvabean

  • MD5

    7653ca3871fc6caab994bdb98219db9a

  • SHA1

    69e63699319a7b2c40a88f915e8cb3731685060c

  • SHA256

    cb5fffb80e19de3bbebb625652ce3aa313d9a631ba98bb9b8057c429ebaff12c

  • SHA512

    9f846d3e3d2bce5abd3dfb6c1dddc1e173ae62ea1406e6a7e893ddf26d8139894e9ff0ef6c49fecde411f03b1030d3bd7f4aae59e4152a488892a51f11ecf419

  • SSDEEP

    12288:J9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hEZ:TZ1xuVVjfFoynPaVBUR8f+kN10EBy

Score
10/10
darkcomethfevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

HF

C2

remotely.no-ip.org:1604

Mutex

DC_MUTEX-FQC6HU1

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    RAxDU7cr0AnM

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      cb5fffb80e19de3bbebb625652ce3aa313d9a631ba98bb9b8057c429ebaff12c

    • Size

      690KB

    • MD5

      7653ca3871fc6caab994bdb98219db9a

    • SHA1

      69e63699319a7b2c40a88f915e8cb3731685060c

    • SHA256

      cb5fffb80e19de3bbebb625652ce3aa313d9a631ba98bb9b8057c429ebaff12c

    • SHA512

      9f846d3e3d2bce5abd3dfb6c1dddc1e173ae62ea1406e6a7e893ddf26d8139894e9ff0ef6c49fecde411f03b1030d3bd7f4aae59e4152a488892a51f11ecf419

    • SSDEEP

      12288:J9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hEZ:TZ1xuVVjfFoynPaVBUR8f+kN10EBy

    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

    • Modifies security service

      evasion

    • Windows security bypass

      evasiontrojan

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      evasion

    • 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

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

2
T1031

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

7
T1112

Disabling Security Tools

2
T1089

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