Overview

overview

10

Static

static

3

27b9af6e87...18.exe

windows7-x64

10

27b9af6e87...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    27b9af6e87817273bce0b77fefe6c718_JaffaCakes118

  • Size

    364KB

  • Sample

    240706-jal4hszhrp

  • MD5

    27b9af6e87817273bce0b77fefe6c718

  • SHA1

    321a0f5ca91ec85e2bd39db0a5f4f184e1893780

  • SHA256

    c6467cd45bf580e124d4532f5f621214982c2330c8f24a9c42047e259d9d66e5

  • SHA512

    862fb13986c6f57bab02bdf4bc6b4fa26b4352e401c3cd9516e438d5547ffe5ab093713cb994aab73349f48455e233717a11096aa731a4700e633b3003a8d508

  • SSDEEP

    6144:1118kx9gO5lXllpcxYuN4WiLhNP9XhDmHiBy5gIJjXyLHKT5+FtN2ghX:ykx9gEtSJNzUhdnDVc5gwjCLHKT5Mj2O

Score
10/10
darkcometguest16evasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

116.37.6.196:1604

Mutex

DC_MUTEX-MJ67NPZ

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    xvCNv79xVljd

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Targets

    • Target

      27b9af6e87817273bce0b77fefe6c718_JaffaCakes118

    • Size

      364KB

    • MD5

      27b9af6e87817273bce0b77fefe6c718

    • SHA1

      321a0f5ca91ec85e2bd39db0a5f4f184e1893780

    • SHA256

      c6467cd45bf580e124d4532f5f621214982c2330c8f24a9c42047e259d9d66e5

    • SHA512

      862fb13986c6f57bab02bdf4bc6b4fa26b4352e401c3cd9516e438d5547ffe5ab093713cb994aab73349f48455e233717a11096aa731a4700e633b3003a8d508

    • SSDEEP

      6144:1118kx9gO5lXllpcxYuN4WiLhNP9XhDmHiBy5gIJjXyLHKT5+FtN2ghX:ykx9gEtSJNzUhdnDVc5gwjCLHKT5Mj2O

    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

    • 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.

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

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

Modify Registry

7
T1112

Impair Defenses

3
T1562

Disable or Modify Tools

2
T1562.001

Disable or Modify System Firewall

1
T1562.004

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks