Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    16-10-2024 06:16

General

  • Target

    mal.exe

  • Size

    37KB

  • MD5

    1a89a94b9f8b3e9e12009ce905a6afd7

  • SHA1

    18bf661911a93377ada5902ebc581e535f798bd3

  • SHA256

    f75a78bbb8b9fec7151cda7ddfe71f05a83828a202b7fb3278840491c775212d

  • SHA512

    2b6f7138875dcad65761294b43fde006980efeded9264e11c2d8ee5131c61ec6d4d8ef48cdf5b3c649c32712e255442a0c4d1be572bb9141a9f383b7181bd950

  • SSDEEP

    384:767DUiSOL1G5k2gyk/Q0flq/Mst+xWrAF+rMRTyN/0L+EcoinblneHQM3epzXUAH:+7v32bk/Q0oEst+ArM+rMRa8NuuAdt

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

45.141.26.54:1337

Mutex

619caaa21abeda3dd8c1c8d9779b2992

Attributes
  • reg_key

    619caaa21abeda3dd8c1c8d9779b2992

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops autorun.inf file 1 TTPs 5 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\mal.exe
    "C:\Users\Admin\AppData\Local\Temp\mal.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\ProgramData\svchost.exe
      "C:\ProgramData\svchost.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops autorun.inf file
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2172
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\ProgramData\svchost.exe" "svchost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2868

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\svchost.exe

    Filesize

    37KB

    MD5

    1a89a94b9f8b3e9e12009ce905a6afd7

    SHA1

    18bf661911a93377ada5902ebc581e535f798bd3

    SHA256

    f75a78bbb8b9fec7151cda7ddfe71f05a83828a202b7fb3278840491c775212d

    SHA512

    2b6f7138875dcad65761294b43fde006980efeded9264e11c2d8ee5131c61ec6d4d8ef48cdf5b3c649c32712e255442a0c4d1be572bb9141a9f383b7181bd950

  • memory/2172-12-0x0000000074330000-0x00000000748DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2172-11-0x0000000074330000-0x00000000748DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2172-22-0x0000000074330000-0x00000000748DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2744-0-0x0000000074331000-0x0000000074332000-memory.dmp

    Filesize

    4KB

  • memory/2744-1-0x0000000074330000-0x00000000748DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2744-2-0x0000000074330000-0x00000000748DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2744-10-0x0000000074330000-0x00000000748DB000-memory.dmp

    Filesize

    5.7MB