Overview

overview

10

Static

static

10

36e6eab0c0...0a.exe

windows7-x64

10

36e6eab0c0...0a.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2022 08:42

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General

  • Target

    36e6eab0c04a678ec2e9a81e570cf5344f5d8958b025685ff5fcf7f15841d20a.exe

  • Size

    23KB

  • MD5

    36ae5f9083769cce59b15681f7f308cd

  • SHA1

    2c325b08925d27e22c2a5fd68d64f0462b2a30ae

  • SHA256

    36e6eab0c04a678ec2e9a81e570cf5344f5d8958b025685ff5fcf7f15841d20a

  • SHA512

    4b951d5d64bc947bc1e4c42f137cfbc5d9170cac03c47ec8b95b075db43430ff150ac6707b4faeca355071ffbb13c071f7be88f293a0821f4ddc26e39e01ec20

  • SSDEEP

    384:/luBPiZCMfdfSJrQbsLRGSIxYVL46pg/i8BD9BmRvR6JZlbw8hqIusZzZpYN:IOmhtIiRpcnuIA

Score
10/10
njratmr.meroevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Mr.MeRo

C2

omarzzt.no-ip.biz:1177

Mutex

8141cfe330bee6dde5943a98e3d1fd4b

Attributes
  • reg_key

    8141cfe330bee6dde5943a98e3d1fd4b

  • 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.

  • 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 use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\36e6eab0c04a678ec2e9a81e570cf5344f5d8958b025685ff5fcf7f15841d20a.exe
    "C:\Users\Admin\AppData\Local\Temp\36e6eab0c04a678ec2e9a81e570cf5344f5d8958b025685ff5fcf7f15841d20a.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4836
    • C:\Users\Admin\AppData\Local\Temp\windows.exe
      "C:\Users\Admin\AppData\Local\Temp\windows.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:372
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\windows.exe" "windows.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:4900

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    23KB

    MD5

    36ae5f9083769cce59b15681f7f308cd

    SHA1

    2c325b08925d27e22c2a5fd68d64f0462b2a30ae

    SHA256

    36e6eab0c04a678ec2e9a81e570cf5344f5d8958b025685ff5fcf7f15841d20a

    SHA512

    4b951d5d64bc947bc1e4c42f137cfbc5d9170cac03c47ec8b95b075db43430ff150ac6707b4faeca355071ffbb13c071f7be88f293a0821f4ddc26e39e01ec20

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

    23KB

    MD5

    36ae5f9083769cce59b15681f7f308cd

    SHA1

    2c325b08925d27e22c2a5fd68d64f0462b2a30ae

    SHA256

    36e6eab0c04a678ec2e9a81e570cf5344f5d8958b025685ff5fcf7f15841d20a

    SHA512

    4b951d5d64bc947bc1e4c42f137cfbc5d9170cac03c47ec8b95b075db43430ff150ac6707b4faeca355071ffbb13c071f7be88f293a0821f4ddc26e39e01ec20

    Download Submit
  • memory/372-136-0x0000000000000000-mapping.dmp
    Download
  • memory/372-140-0x00000000750E0000-0x0000000075691000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/372-142-0x00000000750E0000-0x0000000075691000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4836-135-0x00000000750E0000-0x0000000075691000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4836-139-0x00000000750E0000-0x0000000075691000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4900-141-0x0000000000000000-mapping.dmp
    Download