Overview

overview

10

Static

static

10

UserConfig.exe

windows10-2004-x64

UserConfig.exe

windows11-ltsc_2024-x64

Sharing

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General

  • Target
    UserConfig.exe
  • Size 37KB
  • Sample260805-vnc9bacn7w
  • SHA256 83fb871d32d6a37d21d46a00abdaea66ece0be1f34a609688ed6d7284e0dfe94
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
njratkakashkindefense_evasiondiscoverypersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

  • njrat

Version

  • im523

Botnet

  • kakashkin

C2

  • 193.124.117.235:6770

Mutex

  • d7e338447b3a8a3b05dfdff0e2e9ad61

Attributes
  • reg_key

    d7e338447b3a8a3b05dfdff0e2e9ad61

  • splitter

    |'|'|

Targets

    • Target
      UserConfig.exe
    • Size 37KB
    • SHA256 83fb871d32d6a37d21d46a00abdaea66ece0be1f34a609688ed6d7284e0dfe94
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    kakashkindefense_evasiondiscoverynjratpersistenceprivilege_escalationtrojan

    • Family: njRAT/Bladabindi

      Widely used RAT written in .NET.

      trojannjrat

    • Modifies Windows Firewall

      defense_evasion

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

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

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks