Overview

overview

10

Static

static

3

JaffaCakes...49.exe

windows7-x64

10

JaffaCakes...49.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49

  • Size

    815KB

  • Sample

    250115-fh4fzstlbj

  • MD5

    4d6775a79d5860ad79bd37749ab95e49

  • SHA1

    b35f1f3dd0e01a316832e5c2ff85e4a929950eaa

  • SHA256

    4ff386229ef281c9f6c9e132da624369b432cc2db5758e2ace5440c787afe8c7

  • SHA512

    d3c079001d3209c1df786ec708451b0e52f5e4711db72a984b158585fab4dbd86b6bc1a67686420b52907719aae1da3317addb2929e2b58267b6e87649f009fb

  • SSDEEP

    24576:/gS4nxuUYcfmj1I5Cdm+JpPWIvFLE5qZH6YbpDn+gA/gUUDOLG:QAU/OhI5C/nFvH6Qpz+zgSG

Score
10/10
darkcometdiscoveryevasionpersistencerattrojan

Malware Config

Targets

    • Target

      JaffaCakes118_4d6775a79d5860ad79bd37749ab95e49

    • Size

      815KB

    • MD5

      4d6775a79d5860ad79bd37749ab95e49

    • SHA1

      b35f1f3dd0e01a316832e5c2ff85e4a929950eaa

    • SHA256

      4ff386229ef281c9f6c9e132da624369b432cc2db5758e2ace5440c787afe8c7

    • SHA512

      d3c079001d3209c1df786ec708451b0e52f5e4711db72a984b158585fab4dbd86b6bc1a67686420b52907719aae1da3317addb2929e2b58267b6e87649f009fb

    • SSDEEP

      24576:/gS4nxuUYcfmj1I5Cdm+JpPWIvFLE5qZH6YbpDn+gA/gUUDOLG:QAU/OhI5C/nFvH6Qpz+zgSG

    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

    • 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

6
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