Overview

overview

10

Static

static

10

forvm.exe

windows7_x64

10

forvm.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    forvm_pass_123.rar

  • Size

    16KB

  • Sample

    220618-zjjmrabbak

  • MD5

    63694174ac7fb4c7a92fa5fb9596e1bb

  • SHA1

    dec61e3f38f7d884835dd2939485091a08291e2f

  • SHA256

    a9baa80baffbca2bb7ec0d659f3b30b4550c0188be4e27dd7a1b675670de3bf2

  • SHA512

    e5ffb3542c174953047da16ebc2dbda3b9f69141c6fdc9a869ff494b1af1196261296ccea1e33199ecf85de5899c8f778c68c485593a568b49d8f3220970a444

Score
10/10
njratgaynextevasionpersistencesuricatatrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

gay

C2

2.tcp.eu.ngrok.io:18163

Mutex

767dc25f03dd681bde2bda93c68cdea8

Attributes
  • reg_key

    767dc25f03dd681bde2bda93c68cdea8

  • splitter

    |'|'|

Extracted

Family

njrat

Version

im523

Botnet

NEXT

C2

109.197.196.135:9991

Mutex

413491cbe232876548b9b7cd8a1b451d

Attributes
  • reg_key

    413491cbe232876548b9b7cd8a1b451d

  • splitter

    |'|'|

Targets

    • Target

      forvm.exe

    • Size

      37KB

    • MD5

      1c34d0c6964ad975af3dd63fa9282e2e

    • SHA1

      4b1a295f48590c84880a458bbedeafc1512641ee

    • SHA256

      dde7dcf2831fc86f74315f05353ed60908fda5e8c8f2620fe160d63b266db471

    • SHA512

      8b8d5f608c87c8c9ce7a3d1571b77e2f2962b2ac332b474467fddd43902e9a56d1af4eadd5976caa6237c57a691b02f44d96ef2bd436b9e092c569185e9af5d5

    Score
    10/10
    njratgaynextevasionpersistencesuricatatrojan

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

      trojannjrat

    • suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)

      suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)

      suricata

    • suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback (Capture)

      suricata: ET MALWARE njrat ver 0.7d Malware CnC Callback (Capture)

      suricata

    • 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