Overview

overview

10

Static

static

10

4b0f762e29...5e.exe

windows7_x64

10

4b0f762e29...5e.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    4b0f762e2935bd48524d835f4d6eb6289f20721241a362fb51a520150fdba95e

  • Size

    37KB

  • Sample

    220520-w4zmxsfaak

  • MD5

    85972855ff977c521b1a717a32593fdd

  • SHA1

    b0144dfb8130083922e35b70152edd83739359a9

  • SHA256

    4b0f762e2935bd48524d835f4d6eb6289f20721241a362fb51a520150fdba95e

  • SHA512

    1c81a09c3e562bbe462690d899499d187e3b52fd5d5ec759482d7dda5136c4af54f5c806d246db8a331effb633f96754987a8af03238b7cda5019c5fd17c849f

Score
10/10
njrathackerevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKer

C2

91.232.111.212:7777

Mutex

47f152bbb0d9981b492589085b7b7e18

Attributes
  • reg_key

    47f152bbb0d9981b492589085b7b7e18

  • splitter

    |'|'|

Targets

    • Target

      4b0f762e2935bd48524d835f4d6eb6289f20721241a362fb51a520150fdba95e

    • Size

      37KB

    • MD5

      85972855ff977c521b1a717a32593fdd

    • SHA1

      b0144dfb8130083922e35b70152edd83739359a9

    • SHA256

      4b0f762e2935bd48524d835f4d6eb6289f20721241a362fb51a520150fdba95e

    • SHA512

      1c81a09c3e562bbe462690d899499d187e3b52fd5d5ec759482d7dda5136c4af54f5c806d246db8a331effb633f96754987a8af03238b7cda5019c5fd17c849f

    Score
    10/10
    njrathackerevasionpersistencetrojan

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

      trojannjrat

    • Executes dropped EXE

    • Modifies Windows Firewall

      evasion

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Drops autorun.inf file

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

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Exfiltration

Command and Control

Impact

Tasks