Overview

overview

10

Static

static

10

1f97df6203...18.exe

windows7-x64

10

1f97df6203...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1f97df62030c674d61a88e16bd060018_JaffaCakes118

  • Size

    668KB

  • Sample

    240507-f4zd6abb8t

  • MD5

    1f97df62030c674d61a88e16bd060018

  • SHA1

    99781094b42fb86151545a81f748f563b2d7b6cb

  • SHA256

    5efe38d9dfcc868f9d4e101efc39fe89c9865d6ad55de74b030b25bf72e935a2

  • SHA512

    3d304a6eac8ff9b451b2ac3fd08f54b2e4fc5eeb1e510867a3413b1a21ced04dd7b010264a1e7965b426916522539815707f167fc56053bbdd12ca5fa612a178

  • SSDEEP

    12288:1pwABK90BOe/x9lPAYvxPQVjdsAY2XjWlnlpTMMXG91uhKIb8:HwAcu99lPzvxP+Bsz2XjWTRMQckkIb

Score
10/10
darkcometevasionpersistencerattrojan

Malware Config

Targets

    • Target

      1f97df62030c674d61a88e16bd060018_JaffaCakes118

    • Size

      668KB

    • MD5

      1f97df62030c674d61a88e16bd060018

    • SHA1

      99781094b42fb86151545a81f748f563b2d7b6cb

    • SHA256

      5efe38d9dfcc868f9d4e101efc39fe89c9865d6ad55de74b030b25bf72e935a2

    • SHA512

      3d304a6eac8ff9b451b2ac3fd08f54b2e4fc5eeb1e510867a3413b1a21ced04dd7b010264a1e7965b426916522539815707f167fc56053bbdd12ca5fa612a178

    • SSDEEP

      12288:1pwABK90BOe/x9lPAYvxPQVjdsAY2XjWlnlpTMMXG91uhKIb8:HwAcu99lPzvxP+Bsz2XjWTRMQckkIb

    Score
    10/10
    darkcometevasionpersistencerattrojan

    • 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

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      evasion

    • Drops file in Drivers directory

    • 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 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

2
T1562

Disable or Modify Tools

2
T1562.001

Credential Access

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks