Overview

overview

10

Static

static

10

3a4d2f5aa8...f8.exe

windows7-x64

10

3a4d2f5aa8...f8.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    3a4d2f5aa836de9bbcbb5f2b91a0b4e3fc3579d7a6e96aa6919e8a6b4f855ff8.exe

  • Size

    23KB

  • Sample

    241202-yf88kazjcw

  • MD5

    5b72c6044d819ec5431ccc0736fd9ed2

  • SHA1

    80cf96c5f8b66de9e9f21d47f0f18e68c3b9f74a

  • SHA256

    3a4d2f5aa836de9bbcbb5f2b91a0b4e3fc3579d7a6e96aa6919e8a6b4f855ff8

  • SHA512

    cde2c1c13e3a136f7ffa39d1731ea336ef0a2ab074764aadbeb6eacc4350b8169e8179d95bc90e94219c1e7c4ad2658716548a2486b61a83f4fab228c8aa7238

  • SSDEEP

    384:y8aY1ia0N/IH+WUiWiLcXyUTly2Rc87po6ngB8W+tqlf5mRvR6JZlbw8hqIusZz5:31Re/E+WUiW6ci6NR7tZRpcnuWp

Score
10/10
njratyosef discoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

yOSEF

C2

z24545451383mcvodn.hopto.org:1177

Mutex

43e69094d76b8f4516f8f345104212b2

Attributes
  • reg_key

    43e69094d76b8f4516f8f345104212b2

  • splitter

    |'|'|

Targets

    • Target

      3a4d2f5aa836de9bbcbb5f2b91a0b4e3fc3579d7a6e96aa6919e8a6b4f855ff8.exe

    • Size

      23KB

    • MD5

      5b72c6044d819ec5431ccc0736fd9ed2

    • SHA1

      80cf96c5f8b66de9e9f21d47f0f18e68c3b9f74a

    • SHA256

      3a4d2f5aa836de9bbcbb5f2b91a0b4e3fc3579d7a6e96aa6919e8a6b4f855ff8

    • SHA512

      cde2c1c13e3a136f7ffa39d1731ea336ef0a2ab074764aadbeb6eacc4350b8169e8179d95bc90e94219c1e7c4ad2658716548a2486b61a83f4fab228c8aa7238

    • SSDEEP

      384:y8aY1ia0N/IH+WUiWiLcXyUTly2Rc87po6ngB8W+tqlf5mRvR6JZlbw8hqIusZz5:31Re/E+WUiW6ci6NR7tZRpcnuWp

    Score
    10/10
    njratyosef discoveryevasionpersistenceprivilege_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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

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