General

  • Target

    TGX.exe

  • Size

    19.0MB

  • Sample

    230329-b8at5sec83

  • MD5

    f11e3a4b0b3dfbeeda1093a3d23103a9

  • SHA1

    249ac84328d018b6c1f8bdc158210d73d1dfa895

  • SHA256

    e57f065b20a5bcc1b515ca93b86f221783ddf5880f660f552b5a9735fce540a7

  • SHA512

    baedf5d8da21ec93d007d51f750d6c3edcee28d8a01f1c549e1adb7268da48d6df1d9467f1506dc72fb7d1b01b1142bb8ab174b7122a101de8bc8e86dc423990

  • SSDEEP

    393216:vpoJ0krl5Tb9KaS4d2OfGJxZ8AB1SNjmJ4Uoy7Tk15HZKU:vpohLb9KaIOoD8Aom1V7T7U

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

browser-bangladesh.at.ply.gg:14018

Mutex

675f4fe6228789d2c44bb51781f399e5

Attributes
  • reg_key

    675f4fe6228789d2c44bb51781f399e5

  • splitter

    |'|'|

Targets

    • Target

      TGX.exe

    • Size

      19.0MB

    • MD5

      f11e3a4b0b3dfbeeda1093a3d23103a9

    • SHA1

      249ac84328d018b6c1f8bdc158210d73d1dfa895

    • SHA256

      e57f065b20a5bcc1b515ca93b86f221783ddf5880f660f552b5a9735fce540a7

    • SHA512

      baedf5d8da21ec93d007d51f750d6c3edcee28d8a01f1c549e1adb7268da48d6df1d9467f1506dc72fb7d1b01b1142bb8ab174b7122a101de8bc8e86dc423990

    • SSDEEP

      393216:vpoJ0krl5Tb9KaS4d2OfGJxZ8AB1SNjmJ4Uoy7Tk15HZKU:vpohLb9KaIOoD8Aom1V7T7U

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks