Overview

overview

10

Static

static

10

bfbae87004...0c.exe

windows7-x64

10

bfbae87004...0c.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-01-2023 00:46

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General

  • Target

    bfbae8700482430e437f19775ec2300c.exe

  • Size

    43KB

  • MD5

    bfbae8700482430e437f19775ec2300c

  • SHA1

    37b64267becf1a36ed3b59e092b9c6e436669d02

  • SHA256

    9d4fa86ae4f8aa26980f7dc2d8761901643b698c50b40ddf0477bfacd8a1e9d3

  • SHA512

    fa70371ae55f4f77f2afd342fa8e00741c809b9e6885b98e52fa6375832d5c95bf045d2b276cad2ce6df6dd33b6782ad5163e53a4f06b350b8d61e1eb4341c08

  • SSDEEP

    384:2ZyON3vxdW/IUyNZmd5yFivUwaMbt156lbC9D9O5UE5QzwBlpJNakkjh/TzF7pWS:sB/xIghNZk5yFivd9tilvQO+3D+L

Score
10/10
njratsystempersistencetrojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

system

C2

2.tcp.eu.ngrok.io:10724

Mutex

Windows Update

Attributes
  • reg_key

    Windows Update

  • splitter

    |Hassan|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bfbae8700482430e437f19775ec2300c.exe
    "C:\Users\Admin\AppData\Local\Temp\bfbae8700482430e437f19775ec2300c.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:4156
    • C:\Users\Admin\AppData\Local\Temp\systemupdate.exe
      "C:\Users\Admin\AppData\Local\Temp\systemupdate.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:3444

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

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

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\systemupdate.exe
    Filesize

    43KB

    MD5

    bfbae8700482430e437f19775ec2300c

    SHA1

    37b64267becf1a36ed3b59e092b9c6e436669d02

    SHA256

    9d4fa86ae4f8aa26980f7dc2d8761901643b698c50b40ddf0477bfacd8a1e9d3

    SHA512

    fa70371ae55f4f77f2afd342fa8e00741c809b9e6885b98e52fa6375832d5c95bf045d2b276cad2ce6df6dd33b6782ad5163e53a4f06b350b8d61e1eb4341c08

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\systemupdate.exe
    Filesize

    43KB

    MD5

    bfbae8700482430e437f19775ec2300c

    SHA1

    37b64267becf1a36ed3b59e092b9c6e436669d02

    SHA256

    9d4fa86ae4f8aa26980f7dc2d8761901643b698c50b40ddf0477bfacd8a1e9d3

    SHA512

    fa70371ae55f4f77f2afd342fa8e00741c809b9e6885b98e52fa6375832d5c95bf045d2b276cad2ce6df6dd33b6782ad5163e53a4f06b350b8d61e1eb4341c08

    Download Submit
  • memory/3444-133-0x0000000000000000-mapping.dmp
    Download
  • memory/3444-137-0x0000000075230000-0x00000000757E1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3444-138-0x0000000075230000-0x00000000757E1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4156-132-0x0000000075230000-0x00000000757E1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4156-136-0x0000000075230000-0x00000000757E1000-memory.dmp
    Filesize

    5.7MB

    Download