Overview

overview

10

Static

static

10

6e652fbc45...e0.exe

windows7-x64

10

6e652fbc45...e0.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • 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
    14-10-2022 10:10

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General

  • Target

    6e652fbc4551ca4f71ee62ea06c4091d6ca20db62c8ac54837461bdddca60ee0.exe

  • Size

    89KB

  • MD5

    6239221711b96ccb760da6c546f1fab0

  • SHA1

    98b4bd309e1b7fe664b5061bb82c25882eb17aa2

  • SHA256

    6e652fbc4551ca4f71ee62ea06c4091d6ca20db62c8ac54837461bdddca60ee0

  • SHA512

    d02ac1223946c4a8b6d1a8974088e5acaa73ba51bb6e5b52a8844cbd819dc3ecea070c959f9c26d400d8c5eea6b1858c1abd0e81a7039d3dc88ee600f72fe0fb

  • SSDEEP

    384:d8aSyS9gB3Y1KIay2X8cLZI6XgxsGJVPpmRvR6JZlbw8hqIusZzZ9ZaByEA:e589tXvRpcnugwyEA

Score
10/10
njrat?????evasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

?????

C2

BIG12.zapto.org:5552

Mutex

33c4c0825b0067c12434d0656e7cf5d6

Attributes
  • reg_key

    33c4c0825b0067c12434d0656e7cf5d6

  • 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 33 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6e652fbc4551ca4f71ee62ea06c4091d6ca20db62c8ac54837461bdddca60ee0.exe
    "C:\Users\Admin\AppData\Local\Temp\6e652fbc4551ca4f71ee62ea06c4091d6ca20db62c8ac54837461bdddca60ee0.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1604
    • C:\Users\Admin\AppData\Roaming\chrome-update.exe
      "C:\Users\Admin\AppData\Roaming\chrome-update.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1276
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\chrome-update.exe" "chrome-update.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:228

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\chrome-update.exe
    Filesize

    89KB

    MD5

    6239221711b96ccb760da6c546f1fab0

    SHA1

    98b4bd309e1b7fe664b5061bb82c25882eb17aa2

    SHA256

    6e652fbc4551ca4f71ee62ea06c4091d6ca20db62c8ac54837461bdddca60ee0

    SHA512

    d02ac1223946c4a8b6d1a8974088e5acaa73ba51bb6e5b52a8844cbd819dc3ecea070c959f9c26d400d8c5eea6b1858c1abd0e81a7039d3dc88ee600f72fe0fb

    Download Submit

  • C:\Users\Admin\AppData\Roaming\chrome-update.exe
    Filesize

    89KB

    MD5

    6239221711b96ccb760da6c546f1fab0

    SHA1

    98b4bd309e1b7fe664b5061bb82c25882eb17aa2

    SHA256

    6e652fbc4551ca4f71ee62ea06c4091d6ca20db62c8ac54837461bdddca60ee0

    SHA512

    d02ac1223946c4a8b6d1a8974088e5acaa73ba51bb6e5b52a8844cbd819dc3ecea070c959f9c26d400d8c5eea6b1858c1abd0e81a7039d3dc88ee600f72fe0fb

    Download Submit

  • memory/1276-137-0x00000000754A0000-0x0000000075A51000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1276-139-0x00000000754A0000-0x0000000075A51000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1604-132-0x00000000754A0000-0x0000000075A51000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1604-136-0x00000000754A0000-0x0000000075A51000-memory.dmp

    Filesize

    5.7MB

    Download