Overview

overview

10

Static

static

10

3c3a76b613...99.exe

windows7_x64

10

3c3a76b613...99.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    3c3a76b613083c05bb7db61c6b359870c2e90352076f2d32a9c96061494bab99

  • Size

    37KB

  • Sample

    220520-1tvcnshean

  • MD5

    da41705c070ddbe50b4774857de19a74

  • SHA1

    8871c7ce68dde674da05339f3a6d6d0eefb0bcb0

  • SHA256

    3c3a76b613083c05bb7db61c6b359870c2e90352076f2d32a9c96061494bab99

  • SHA512

    c1de464d1f2a3fb5bc95fb615f8909e8889383112691f10263d1bdf1aee94228c527d09caa195f6f40fe92e76cff0fb7eb679420390269e412f72143b0a30e9b

Score
10/10
njratevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

C2

79.140.166.40:22222

Mutex

af7a25d12a577183bc6b99084bac0e73

Attributes
  • reg_key

    af7a25d12a577183bc6b99084bac0e73

  • splitter

    |'|'|

Targets

    • Target

      3c3a76b613083c05bb7db61c6b359870c2e90352076f2d32a9c96061494bab99

    • Size

      37KB

    • MD5

      da41705c070ddbe50b4774857de19a74

    • SHA1

      8871c7ce68dde674da05339f3a6d6d0eefb0bcb0

    • SHA256

      3c3a76b613083c05bb7db61c6b359870c2e90352076f2d32a9c96061494bab99

    • SHA512

      c1de464d1f2a3fb5bc95fb615f8909e8889383112691f10263d1bdf1aee94228c527d09caa195f6f40fe92e76cff0fb7eb679420390269e412f72143b0a30e9b

    Score
    10/10
    njratevasionpersistencetrojan

    • 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