Overview

overview

10

Static

static

10

073869f691...61.exe

windows7-x64

10

073869f691...61.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    151s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-09-2022 08:41

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General

  • Target

    073869f6916ea44677e40d5186bda961.exe

  • Size

    37KB

  • MD5

    073869f6916ea44677e40d5186bda961

  • SHA1

    f383b64329fd19115ad8587e8a9154cf1093ab3b

  • SHA256

    af8ac614d751b198b1fd00e75a99741d9190520dbd7825a395443354d8c8cc1a

  • SHA512

    01719f7c9569ad371c0ad197310acab7e6d670d20c868e018fb031ced840d3ab0e2828b908821740123949fe681a5664f0e49d48c05168d562af83665561a9b8

  • SSDEEP

    384:gFBZkitgZf5W9cTYXyc/SKlMA+zfzQnssItSrAF+rMRTyN/0L+EcoinblneHQM3K:2ByjjTYic/SKq8ssIErM+rMRa8Nujrt

Score
10/10
njrathackedevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

4.tcp.eu.ngrok.io:11814

Mutex

556f30eecd77380f1e650174143e5dec

Attributes
  • reg_key

    556f30eecd77380f1e650174143e5dec

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • 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: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\073869f6916ea44677e40d5186bda961.exe
    "C:\Users\Admin\AppData\Local\Temp\073869f6916ea44677e40d5186bda961.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4372
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3740
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\svchost.exe" "svchost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1596

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

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

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

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

    37KB

    MD5

    073869f6916ea44677e40d5186bda961

    SHA1

    f383b64329fd19115ad8587e8a9154cf1093ab3b

    SHA256

    af8ac614d751b198b1fd00e75a99741d9190520dbd7825a395443354d8c8cc1a

    SHA512

    01719f7c9569ad371c0ad197310acab7e6d670d20c868e018fb031ced840d3ab0e2828b908821740123949fe681a5664f0e49d48c05168d562af83665561a9b8

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

    37KB

    MD5

    073869f6916ea44677e40d5186bda961

    SHA1

    f383b64329fd19115ad8587e8a9154cf1093ab3b

    SHA256

    af8ac614d751b198b1fd00e75a99741d9190520dbd7825a395443354d8c8cc1a

    SHA512

    01719f7c9569ad371c0ad197310acab7e6d670d20c868e018fb031ced840d3ab0e2828b908821740123949fe681a5664f0e49d48c05168d562af83665561a9b8

    Download Submit
  • memory/1596-138-0x0000000000000000-mapping.dmp
    Download
  • memory/3740-133-0x0000000000000000-mapping.dmp
    Download
  • memory/3740-137-0x0000000074770000-0x0000000074D21000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3740-139-0x0000000074770000-0x0000000074D21000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4372-132-0x0000000074770000-0x0000000074D21000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4372-136-0x0000000074770000-0x0000000074D21000-memory.dmp
    Filesize

    5.7MB

    Download