Overview

overview

10

Static

static

10

bMJj.exe

windows7-x64

10

bMJj.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-05-2023 17:07

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General

  • Target

    bMJj.exe

  • Size

    78KB

  • MD5

    d6b907a131586513531e26f54e424ef1

  • SHA1

    dbd94a49ebcf17acf7aa27b0e7e37db8161d3fae

  • SHA256

    1edd9675ca9e84553106201aae3a98bdb2fd2ff8e6039af4478fe5af4fbfd995

  • SHA512

    0af91f99df2b9453a19051f988d1683d3eff52aa471dc206766e55139f06ae894a2df9b418977808a5a62196da423efea07add75bcba9ba6fe8a5c83eca704ff

  • SSDEEP

    1536:h5B+r0dODplS5wpOk3JCK6pFoO/d6fOpd/9nEh9TG6JgR:YQwpOk5CK6gO/9ES6Jg

Score
10/10
njratlimetrojan

Malware Config

Extracted

Family

njrat

Version

0.7.3

Botnet

Lime

C2

ax4.duckdns.org:9966

Mutex

Client.exe

Attributes
  • reg_key

    Client.exe

  • splitter

    16426337

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bMJj.exe
    "C:\Users\Admin\AppData\Local\Temp\bMJj.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3532
    • C:\Users\Admin\AppData\Roaming\Client.exe
      "C:\Users\Admin\AppData\Roaming\Client.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3896

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Client.exe
    Filesize

    78KB

    MD5

    d6b907a131586513531e26f54e424ef1

    SHA1

    dbd94a49ebcf17acf7aa27b0e7e37db8161d3fae

    SHA256

    1edd9675ca9e84553106201aae3a98bdb2fd2ff8e6039af4478fe5af4fbfd995

    SHA512

    0af91f99df2b9453a19051f988d1683d3eff52aa471dc206766e55139f06ae894a2df9b418977808a5a62196da423efea07add75bcba9ba6fe8a5c83eca704ff

    Download Submit
  • C:\Users\Admin\AppData\Roaming\Client.exe
    Filesize

    78KB

    MD5

    d6b907a131586513531e26f54e424ef1

    SHA1

    dbd94a49ebcf17acf7aa27b0e7e37db8161d3fae

    SHA256

    1edd9675ca9e84553106201aae3a98bdb2fd2ff8e6039af4478fe5af4fbfd995

    SHA512

    0af91f99df2b9453a19051f988d1683d3eff52aa471dc206766e55139f06ae894a2df9b418977808a5a62196da423efea07add75bcba9ba6fe8a5c83eca704ff

    Download Submit
  • C:\Users\Admin\AppData\Roaming\Client.exe
    Filesize

    78KB

    MD5

    d6b907a131586513531e26f54e424ef1

    SHA1

    dbd94a49ebcf17acf7aa27b0e7e37db8161d3fae

    SHA256

    1edd9675ca9e84553106201aae3a98bdb2fd2ff8e6039af4478fe5af4fbfd995

    SHA512

    0af91f99df2b9453a19051f988d1683d3eff52aa471dc206766e55139f06ae894a2df9b418977808a5a62196da423efea07add75bcba9ba6fe8a5c83eca704ff

    Download Submit
  • memory/3532-133-0x0000000000780000-0x0000000000790000-memory.dmp
    Filesize

    64KB

    Download
  • memory/3896-143-0x00000000015E0000-0x00000000015F0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/3896-144-0x00000000015E0000-0x00000000015F0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/3896-145-0x00000000015E0000-0x00000000015F0000-memory.dmp
    Filesize

    64KB

    Download