Overview

overview

10

Static

static

10

677b2f3d42...dN.exe

windows7-x64

10

677b2f3d42...dN.exe

windows10-2004-x64

8

Sharing

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General

  • Target

    677b2f3d4275232db4c9a7e86a96598f640a540224e03fd7a89075cfabbea37dN.exe

  • Size

    51KB

  • Sample

    250111-bsyw2axjbv

  • MD5

    e3f19a6d4a100b9cc3e59f7974e352d0

  • SHA1

    d12880e3a383f2fb530015fbf8b23f3b3d8e9cd4

  • SHA256

    677b2f3d4275232db4c9a7e86a96598f640a540224e03fd7a89075cfabbea37d

  • SHA512

    2096527f199524b5baad0f2b91b5d9dd30827e691f28152b60065e6a21d504a2bfba3fa929a26c66b869a15d783066e8f4c418093c3784c5fda6835cec64e5a5

  • SSDEEP

    768:uFN5WpszMFsmjv0yrM+rMRa8NuLatrNgpWO:uFN5W+AFsmjst+gRJNEQu

Score
10/10
njratpisundiscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

Pisun

C2

192.168.8.1:2192

Mutex

4f17247515ce6a71ea4fca5b97bbccaa

Attributes
  • reg_key

    4f17247515ce6a71ea4fca5b97bbccaa

  • splitter

    |'|'|

Targets

    • Target

      677b2f3d4275232db4c9a7e86a96598f640a540224e03fd7a89075cfabbea37dN.exe

    • Size

      51KB

    • MD5

      e3f19a6d4a100b9cc3e59f7974e352d0

    • SHA1

      d12880e3a383f2fb530015fbf8b23f3b3d8e9cd4

    • SHA256

      677b2f3d4275232db4c9a7e86a96598f640a540224e03fd7a89075cfabbea37d

    • SHA512

      2096527f199524b5baad0f2b91b5d9dd30827e691f28152b60065e6a21d504a2bfba3fa929a26c66b869a15d783066e8f4c418093c3784c5fda6835cec64e5a5

    • SSDEEP

      768:uFN5WpszMFsmjv0yrM+rMRa8NuLatrNgpWO:uFN5W+AFsmjst+gRJNEQu

    Score
    10/10
    njratpisundiscoveryevasionpersistenceprivilege_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

    • Drops autorun.inf file

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

    behavioral1behavioral2

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

Query Registry

1
T1012

System Information Discovery

2
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