Overview

overview

10

Static

static

10

tmpE1B.tmp.exe

windows7_x64

10

tmpE1B.tmp.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    tmpE1B.tmp.exe

  • Size

    37KB

  • Sample

    220618-zrq2ssbbdm

  • MD5

    73196f394725a9623d84a512cdddf6ce

  • SHA1

    4d24d92f70b2cbce52b1b173162b8f504ee7752f

  • SHA256

    ee4ab4017c6e9c0883b2c1e42d0f0264f178ad2c6416e07d77169fdf94d1b1a4

  • SHA512

    9c7d00237665f6a1df06217d156cbf07e499f60a7b4eb807b2df107f7392d710cb2439d524827b50492578c652ba20b81f95e4e0eee9f144330847f041971ed6

Score
10/10
njratnextevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

NEXT

C2

109.197.196.135:9991

Mutex

413491cbe232876548b9b7cd8a1b451d

Attributes
  • reg_key

    413491cbe232876548b9b7cd8a1b451d

  • splitter

    |'|'|

Targets

    • Target

      tmpE1B.tmp.exe

    • Size

      37KB

    • MD5

      73196f394725a9623d84a512cdddf6ce

    • SHA1

      4d24d92f70b2cbce52b1b173162b8f504ee7752f

    • SHA256

      ee4ab4017c6e9c0883b2c1e42d0f0264f178ad2c6416e07d77169fdf94d1b1a4

    • SHA512

      9c7d00237665f6a1df06217d156cbf07e499f60a7b4eb807b2df107f7392d710cb2439d524827b50492578c652ba20b81f95e4e0eee9f144330847f041971ed6

    Score
    10/10
    njratnextevasionpersistencetrojan

    • 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