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Analysis

  • max time kernel
    27s
  • max time network
    26s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    20/01/2024, 18:17

General

  • Target

    celestial crack.exe

  • Size

    134KB

  • MD5

    3569db129cff7f9fa82809163432c4ca

  • SHA1

    731902dc450523664d92dba7822f9e14d7e25293

  • SHA256

    b879ee29bdb0b353e8d2e1697296af70e256fcec9e560a973b8d6360be60460c

  • SHA512

    f880d5c5ffd6a8fb90fad9f0100220bce4f285ff3963c73511bf9d87effecdc96562309390aa7c1a0fb912f620c2484e25b2e0e736e1d666a13cd8f184b1dea3

  • SSDEEP

    3072:xV28wLn+yJV5UKKA8foBVaM8SKfbzxcwg7es6/Vsb8VKTu:G8wqtKGgBdUhcX7elbKTu

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

5.tcp.eu.ngrok.io:17912

Mutex

d1cc93bd33e3564c2d5d5688d8b6c4a2

Attributes
  • reg_key

    d1cc93bd33e3564c2d5d5688d8b6c4a2

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 1 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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\celestial crack.exe
    "C:\Users\Admin\AppData\Local\Temp\celestial crack.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Users\Admin\AppData\Local\Temp\77$.exe
      "C:\Users\Admin\AppData\Local\Temp\77$.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops autorun.inf file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2144
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\77$.exe" "77$.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2704

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\77$.exe

    Filesize

    134KB

    MD5

    3569db129cff7f9fa82809163432c4ca

    SHA1

    731902dc450523664d92dba7822f9e14d7e25293

    SHA256

    b879ee29bdb0b353e8d2e1697296af70e256fcec9e560a973b8d6360be60460c

    SHA512

    f880d5c5ffd6a8fb90fad9f0100220bce4f285ff3963c73511bf9d87effecdc96562309390aa7c1a0fb912f620c2484e25b2e0e736e1d666a13cd8f184b1dea3

  • memory/2032-0-0x0000000074970000-0x0000000074F1B000-memory.dmp

    Filesize

    5.7MB

  • memory/2032-1-0x0000000074970000-0x0000000074F1B000-memory.dmp

    Filesize

    5.7MB

  • memory/2032-2-0x00000000003B0000-0x00000000003F0000-memory.dmp

    Filesize

    256KB

  • memory/2032-11-0x0000000074970000-0x0000000074F1B000-memory.dmp

    Filesize

    5.7MB

  • memory/2144-12-0x0000000001F60000-0x0000000001FA0000-memory.dmp

    Filesize

    256KB

  • memory/2144-10-0x0000000074970000-0x0000000074F1B000-memory.dmp

    Filesize

    5.7MB

  • memory/2144-13-0x0000000074970000-0x0000000074F1B000-memory.dmp

    Filesize

    5.7MB