Overview

overview

10

Static

static

10

JaffaCakes...5b.exe

windows7-x64

10

JaffaCakes...5b.exe

windows10-2004-x64

10

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General

  • Target

    JaffaCakes118_195158f2c1098d261170f043d644595b

  • Size

    242KB

  • Sample

    250222-netflsvjhz

  • MD5

    195158f2c1098d261170f043d644595b

  • SHA1

    d8547dc806bfd83597b612422e76bd492fecd7be

  • SHA256

    147aa19bd972d754b290453dbd896d8634674425bf304b6edc1e6d7a39bbb17b

  • SHA512

    2e20ccfca772cd3f5cf9a88e10cf64b1c2667d0d96f6ea4de40f692634dec3f0f060d657fba818d6649bdb1cbe9786f1e80d7a0ada47a81c6e80d50c9ad9402d

  • SSDEEP

    6144:v1iJcYtR1HsvpSHY7KoSrfTNBuzZZcA1wnOLrMM4J:vkHcpSHY7VSrfT2/czO3HA

Score
10/10
darkcometguest16defense_evasiondiscoverypersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

178.83.184.7:1604

Mutex

DC_MUTEX-F54S21D

Attributes
  • InstallPath

    Windupdt\winupdate.exe

  • gencode

    /.E/UCGrJ%lp

  • install

    true

  • offline_keylogger

    false

  • password

    lovojegi

  • persistence

    true

  • reg_key

    winupdater

rc4.plain

Targets

    • Target

      JaffaCakes118_195158f2c1098d261170f043d644595b

    • Size

      242KB

    • MD5

      195158f2c1098d261170f043d644595b

    • SHA1

      d8547dc806bfd83597b612422e76bd492fecd7be

    • SHA256

      147aa19bd972d754b290453dbd896d8634674425bf304b6edc1e6d7a39bbb17b

    • SHA512

      2e20ccfca772cd3f5cf9a88e10cf64b1c2667d0d96f6ea4de40f692634dec3f0f060d657fba818d6649bdb1cbe9786f1e80d7a0ada47a81c6e80d50c9ad9402d

    • SSDEEP

      6144:v1iJcYtR1HsvpSHY7KoSrfTNBuzZZcA1wnOLrMM4J:vkHcpSHY7VSrfT2/czO3HA

    Score
    10/10
    darkcometguest16defense_evasiondiscoverypersistencerattrojanupx

    • 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

    • Disables RegEdit via registry modification

      defense_evasion

    • Disables Task Manager via registry modification

      defense_evasion

    • Checks BIOS information in registry

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

    • Deletes itself

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    • UPX packed file

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

      upx
    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

2
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

1
T1562.001

Modify Registry

5
T1112

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks