Overview

overview

10

Static

static

1

URLScan

urlscan

https://www.mediafir...

windows10-2004-x64

10

Sharing

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General

  • Target

    https://www.mediafire.com/file/sj2kyc9q925g6hg/Krasus+Bootstrapper.rar/file

  • Sample

    241113-pjgs2s1mgy

Score
10/10
njratkrasus-pcdiscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

Krasus-Pc

C2

mingrelian.duckdns.org:4444

Mutex

cf0442d73ab4fa4b3573bef8feb3ee75

Attributes
  • reg_key

    cf0442d73ab4fa4b3573bef8feb3ee75

  • splitter

    |'|'|

Targets

    • Target

      https://www.mediafire.com/file/sj2kyc9q925g6hg/Krasus+Bootstrapper.rar/file

    Score
    10/10
    njratkrasus-pcdiscoveryevasionpersistenceprivilege_escalationtrojan

    • Njrat family

      njrat

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

      trojannjrat

    • Modifies Windows Firewall

      evasion

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

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

1
T1112

Credential Access

Discovery

Browser Information Discovery

1
T1217

Query Registry

2
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Command and Control

Exfiltration

Impact

Tasks