Overview

overview

10

Static

static

10

b761254c36...d1.exe

windows7-x64

10

b761254c36...d1.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b761254c3627c7839e7dd94cb339699af7c8bd1f6400535afeb86b20190ee0d1

  • Size

    690KB

  • Sample

    221001-3t3p6adgbm

  • MD5

    93087bd40c4e1550f856510c08a5f332

  • SHA1

    41349653394e7c8e332b082dce0ded7c61d3a69c

  • SHA256

    b761254c3627c7839e7dd94cb339699af7c8bd1f6400535afeb86b20190ee0d1

  • SHA512

    2c61b745340e9b88d48467f175e3fc4a810b2adf4ee486adec200963ffb579841ead96c8edde0c311cdb979f8639836b63f1bfc1b2d47a07846636ff4964ca7b

  • SSDEEP

    12288:Z9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hqs:jZ1xuVVjfFoynPaVBUR8f+kN10EBx

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

203.192.205.71:80

Mutex

DC_MUTEX-8HQU40W

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    s8dkdk5qgUVM

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      b761254c3627c7839e7dd94cb339699af7c8bd1f6400535afeb86b20190ee0d1

    • Size

      690KB

    • MD5

      93087bd40c4e1550f856510c08a5f332

    • SHA1

      41349653394e7c8e332b082dce0ded7c61d3a69c

    • SHA256

      b761254c3627c7839e7dd94cb339699af7c8bd1f6400535afeb86b20190ee0d1

    • SHA512

      2c61b745340e9b88d48467f175e3fc4a810b2adf4ee486adec200963ffb579841ead96c8edde0c311cdb979f8639836b63f1bfc1b2d47a07846636ff4964ca7b

    • SSDEEP

      12288:Z9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hqs:jZ1xuVVjfFoynPaVBUR8f+kN10EBx

    Score
    10/10
    darkcometguest16evasionpersistencerattrojan

    • 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