Overview

overview

10

Static

static

3

f4e3858a6e...18.exe

windows7-x64

10

f4e3858a6e...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118

  • Size

    763KB

  • Sample

    241215-vcq12aznet

  • MD5

    f4e3858a6edb70810de5f7f57f40faed

  • SHA1

    b738c0146df83640316ad2a8d1b39977262659b3

  • SHA256

    1dcd09d5ff5fe681763a198c451a98a24c6d66f210eedb6f06f0aacf5c75251e

  • SHA512

    df55291a6b0a9c3ae7cd65bae12618f8e834e463150cf5949842963fcac4ce060f23f97b37f4edaddf86aac511ca33c9390fe0506c5506904f88a3ea021ebfe3

  • SSDEEP

    12288:OIKZY6xjZ+9IorqfFh0mxC+lMVpmP8N9Kh3p9PAGL2+SWDPHAoZzTRp5Pu+x+eJm:OFDWIoWNh08bMVpm+9KFpCAmWDPgoJTE

Score
10/10
darkcometdiscoveryevasionpersistencerattrojan

Malware Config

Targets

    • Target

      f4e3858a6edb70810de5f7f57f40faed_JaffaCakes118

    • Size

      763KB

    • MD5

      f4e3858a6edb70810de5f7f57f40faed

    • SHA1

      b738c0146df83640316ad2a8d1b39977262659b3

    • SHA256

      1dcd09d5ff5fe681763a198c451a98a24c6d66f210eedb6f06f0aacf5c75251e

    • SHA512

      df55291a6b0a9c3ae7cd65bae12618f8e834e463150cf5949842963fcac4ce060f23f97b37f4edaddf86aac511ca33c9390fe0506c5506904f88a3ea021ebfe3

    • SSDEEP

      12288:OIKZY6xjZ+9IorqfFh0mxC+lMVpmP8N9Kh3p9PAGL2+SWDPHAoZzTRp5Pu+x+eJm:OFDWIoWNh08bMVpm+9KFpCAmWDPgoJTE

    Score
    10/10
    darkcometdiscoveryevasionpersistencerattrojan

    • 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 Task Manager via registry modification

      evasion

    • 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.

    • 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 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

7
T1112

Credential Access

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks