Overview

overview

10

Static

static

10

2b4a79e259...d0.exe

windows7_x64

10

2b4a79e259...d0.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    2b4a79e25992395c0aefec0702088ec365f731dfeaf42a61fb910e2012f396d0

  • Size

    253KB

  • Sample

    220520-2vyxxsbafr

  • MD5

    8042e161f29f7611e479358616ebce90

  • SHA1

    9e66839a0b7175ed89cc3f415979aa20f13caf71

  • SHA256

    2b4a79e25992395c0aefec0702088ec365f731dfeaf42a61fb910e2012f396d0

  • SHA512

    0d473b8ef9e8e3ab14aca1bd7ac18cd61be22ee8d6ef59feceff8028a34319afd80c20b8efcd965692e4b12353c62d685680bb2af20b5de9fe45cbce3e6b5e2d

Score
10/10
darkcometguest16evasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

rochustoad.ddns.net:1604

rochustoad.ddns.net:27015

176.100.120.27:27015

176.100.120.27:1604
Mutex

DC_MUTEX-3G9F3VY

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    Am7F7zgdwCsR

  • install

    true

  • offline_keylogger

    false

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      2b4a79e25992395c0aefec0702088ec365f731dfeaf42a61fb910e2012f396d0

    • Size

      253KB

    • MD5

      8042e161f29f7611e479358616ebce90

    • SHA1

      9e66839a0b7175ed89cc3f415979aa20f13caf71

    • SHA256

      2b4a79e25992395c0aefec0702088ec365f731dfeaf42a61fb910e2012f396d0

    • SHA512

      0d473b8ef9e8e3ab14aca1bd7ac18cd61be22ee8d6ef59feceff8028a34319afd80c20b8efcd965692e4b12353c62d685680bb2af20b5de9fe45cbce3e6b5e2d

    Score
    10/10
    darkcometevasionpersistencerattrojanupx

    • 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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • 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