Overview

overview

10

Static

static

3

9c75a48f5d...18.exe

windows7-x64

10

9c75a48f5d...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    9c75a48f5d740cc3efc84d89a83ee050_JaffaCakes118

  • Size

    710KB

  • Sample

    241125-s83ctszrcm

  • MD5

    9c75a48f5d740cc3efc84d89a83ee050

  • SHA1

    c589c7813398d1286292087a7525b4e441d78216

  • SHA256

    105988fa4ea105ef4d25131faa63c56df3b6b9294a5e7c2e09ea5d6990b99fe9

  • SHA512

    974c5b6232a0ced575f856c0f9ec76e4a6e663f57509a1b2130f942d84b61f1bdb96ef49544bdfbddc08f6e6e765f1d51ef96f79d93d4e9609dd606f03885851

  • SSDEEP

    12288:a7KQsRFS7dBOgfKxJAoxRYUUFAc0RUzVBAvRj3chpn6mDwhT6NFqKY9JXt9bZ88r:dQs6rFS3lxZCiyzDdp6mDwhT6NFqKi9V

Score
10/10
darkcometguest16discoveryevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-94D01B6

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    72xJLArihnk5

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Targets

    • Target

      9c75a48f5d740cc3efc84d89a83ee050_JaffaCakes118

    • Size

      710KB

    • MD5

      9c75a48f5d740cc3efc84d89a83ee050

    • SHA1

      c589c7813398d1286292087a7525b4e441d78216

    • SHA256

      105988fa4ea105ef4d25131faa63c56df3b6b9294a5e7c2e09ea5d6990b99fe9

    • SHA512

      974c5b6232a0ced575f856c0f9ec76e4a6e663f57509a1b2130f942d84b61f1bdb96ef49544bdfbddc08f6e6e765f1d51ef96f79d93d4e9609dd606f03885851

    • SSDEEP

      12288:a7KQsRFS7dBOgfKxJAoxRYUUFAc0RUzVBAvRj3chpn6mDwhT6NFqKY9JXt9bZ88r:dQs6rFS3lxZCiyzDdp6mDwhT6NFqKi9V

    Score
    10/10
    darkcometguest16discoveryevasionpersistencerattrojan

    • Darkcomet

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

      trojanratdarkcomet

    • Darkcomet family

      darkcomet

    • 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

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Impair Defenses

3
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

2
T1562.001

Modify Registry

7
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks