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Overview

overview

10

Static

static

3

c84a15c55c...18.exe

windows7-x64

10

c84a15c55c...18.exe

windows10-2004-x64

10

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General

  • Target

    c84a15c55c65123c6edeee8a0dc1ad27_JaffaCakes118

  • Size

    544KB

  • Sample

    240829-f39thaxfll

  • MD5

    c84a15c55c65123c6edeee8a0dc1ad27

  • SHA1

    fd332f234be31cd32722b478b425eabd5f66f9ed

  • SHA256

    ffef77fb8cd5d33870fc5ffb329b689e241f402a75c2fe325000bc2f880ad534

  • SHA512

    5b511460d8fcdb4fa0fceeb1ae41fb79c30ea068cc228721aff94f8d3950055a92057870529984b820419287c11072434e5490cf5303ec5ca6ed3926e8712d59

  • SSDEEP

    12288:Ocy8zpggctQIZdTBwHilnDgTkmo514uPa4:y6cuIZd6HgDgVAi4

Score
10/10
bootkitdiscoveryevasionpersistenceprivilege_escalation

Malware Config

Targets

    • Target

      c84a15c55c65123c6edeee8a0dc1ad27_JaffaCakes118

    • Size

      544KB

    • MD5

      c84a15c55c65123c6edeee8a0dc1ad27

    • SHA1

      fd332f234be31cd32722b478b425eabd5f66f9ed

    • SHA256

      ffef77fb8cd5d33870fc5ffb329b689e241f402a75c2fe325000bc2f880ad534

    • SHA512

      5b511460d8fcdb4fa0fceeb1ae41fb79c30ea068cc228721aff94f8d3950055a92057870529984b820419287c11072434e5490cf5303ec5ca6ed3926e8712d59

    • SSDEEP

      12288:Ocy8zpggctQIZdTBwHilnDgTkmo514uPa4:y6cuIZd6HgDgVAi4

    Score
    10/10
    bootkitdiscoveryevasionpersistenceprivilege_escalation

    • Modifies WinLogon for persistence

      persistence

    • Adds policy Run key to start application

      persistence

    • Modifies Windows Firewall

      evasion

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

3
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Time Discovery

1
T1124

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks