Overview

overview

10

Static

static

10

JaffaCakes...68.exe

windows7-x64

10

JaffaCakes...68.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_fed30a16e3b1dbda2f4d15b2aae34168

  • Size

    714KB

  • Sample

    250216-dd3yjsylak

  • MD5

    fed30a16e3b1dbda2f4d15b2aae34168

  • SHA1

    604e8a9aa82f44bf55775916094d0d18e8282751

  • SHA256

    eda2e447c8bc5d389b98c20385112b9f054b56343731c9b103e7528788a29f46

  • SHA512

    4b5043f502a0d002a226d95c1f14f6e66e9e9bfaf080683621467612a479c7bf624d258d5a57e70ccd84157a78242dc1cb46817bc1203b6c5bf4ca2d4fc49295

  • SSDEEP

    12288:qaAchpWsuVTv7ItY8XljyypHP7cOLBev03hlULsmWZ++09ZcKDVsgdW:rAEENIq8XwyVPQclDq/+WnpsSW

Score
10/10
darkcometguest16defense_evasiondiscoverypersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

192.168.1.100:1604

Mutex

DC_MUTEX-0PH35V6

Attributes
  • InstallPath

    Windupdt\winupdate.exe

  • gencode

    =lr$etRb$*1C

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    winupdater

rc4.plain

Targets

    • Target

      JaffaCakes118_fed30a16e3b1dbda2f4d15b2aae34168

    • Size

      714KB

    • MD5

      fed30a16e3b1dbda2f4d15b2aae34168

    • SHA1

      604e8a9aa82f44bf55775916094d0d18e8282751

    • SHA256

      eda2e447c8bc5d389b98c20385112b9f054b56343731c9b103e7528788a29f46

    • SHA512

      4b5043f502a0d002a226d95c1f14f6e66e9e9bfaf080683621467612a479c7bf624d258d5a57e70ccd84157a78242dc1cb46817bc1203b6c5bf4ca2d4fc49295

    • SSDEEP

      12288:qaAchpWsuVTv7ItY8XljyypHP7cOLBev03hlULsmWZ++09ZcKDVsgdW:rAEENIq8XwyVPQclDq/+WnpsSW

    Score
    10/10
    darkcometguest16defense_evasiondiscoverypersistencerattrojan

    • 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

      defense_evasion

    • Modifies security service

      defense_evasion

    • Windows security bypass

      defense_evasiontrojan

    • Downloads MZ/PE file

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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

      defense_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

Impair Defenses

3
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

2
T1562.001

Modify Registry

6
T1112

Credential Access

Discovery

Query Registry

4
T1012

Remote System Discovery

1
T1018

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks