Overview

overview

10

Static

static

3

f27bcaa164...18.exe

windows7-x64

10

f27bcaa164...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f27bcaa1644a3d59b1dbfb38c5aa0d6c_JaffaCakes118

  • Size

    1.0MB

  • Sample

    240416-c17pkshb9s

  • MD5

    f27bcaa1644a3d59b1dbfb38c5aa0d6c

  • SHA1

    d19334e7313a329b264b1236c579136e7e4ea1b0

  • SHA256

    4fdecee78958b17a98fee1b0afa23d35bdf11b38bd543c8b66428bb149dd38c2

  • SHA512

    47096764fcb520594421fe10382739769c0b363fdb3922af52ab18fc6d77db5226bdf8358ff28c4a53f0ed4f87626c8593afa35fabafa083cbdb84a8dbaeccab

  • SSDEEP

    12288:zUZsL8GPNmld8eiGb8f+F54+e6kT6D6BTqU8PfiVp+Xc9gw9z3UKhrhOniBkbdnL:gK3KF+wkP8UYs9NzkTmrRbaS0Vrdvr

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

ultrafucker.no-ip.org:1604

Mutex

DC_MUTEX-XKL4MDM

Attributes
  • InstallPath

    MSDCSC\svchost.exe

  • gencode

    wBVkapugtdJz

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    svchost

Targets

    • Target

      f27bcaa1644a3d59b1dbfb38c5aa0d6c_JaffaCakes118

    • Size

      1.0MB

    • MD5

      f27bcaa1644a3d59b1dbfb38c5aa0d6c

    • SHA1

      d19334e7313a329b264b1236c579136e7e4ea1b0

    • SHA256

      4fdecee78958b17a98fee1b0afa23d35bdf11b38bd543c8b66428bb149dd38c2

    • SHA512

      47096764fcb520594421fe10382739769c0b363fdb3922af52ab18fc6d77db5226bdf8358ff28c4a53f0ed4f87626c8593afa35fabafa083cbdb84a8dbaeccab

    • SSDEEP

      12288:zUZsL8GPNmld8eiGb8f+F54+e6kT6D6BTqU8PfiVp+Xc9gw9z3UKhrhOniBkbdnL:gK3KF+wkP8UYs9NzkTmrRbaS0Vrdvr

    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

    • 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

    • Uses the VBS compiler for execution

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scripting

1
T1064

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

Modify Registry

5
T1112

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Scripting

1
T1064

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks