Analysis

  • max time kernel
    95s
  • max time network
    104s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-11-2024 01:33

General

  • Target

    36adccf26258fc28030c7b0ce17e5c8525cc1127a8505558f1dfc8dd9a52efdfN.exe

  • Size

    455KB

  • MD5

    19d0c3dec3923ac19cd4cf49239758a0

  • SHA1

    99a3f171e11a11ed435600fd70e6350e5f273437

  • SHA256

    36adccf26258fc28030c7b0ce17e5c8525cc1127a8505558f1dfc8dd9a52efdf

  • SHA512

    5e897fbde813c6d155c5b38a601e0e64c6d1d94df6d1b5ea52015260fe3df64a6d3ff74809080117f7ebec3105e9e7480acb306c59ce567fed59a54fd7d79825

  • SSDEEP

    6144:X9iWOkjOhJIeKST38AZ16Jx+pziOQu1n:X0ujOJOSTsAKY

Malware Config

Extracted

Family

stealc

Botnet

default9_cap

C2

http://62.204.41.177

Attributes
  • url_path

    /edd20096ecef326d.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Stealc family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\36adccf26258fc28030c7b0ce17e5c8525cc1127a8505558f1dfc8dd9a52efdfN.exe
    "C:\Users\Admin\AppData\Local\Temp\36adccf26258fc28030c7b0ce17e5c8525cc1127a8505558f1dfc8dd9a52efdfN.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3804
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\36adccf26258fc28030c7b0ce17e5c8525cc1127a8505558f1dfc8dd9a52efdfN.exe" & del "C:\ProgramData\*.dll"" & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5036
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:436
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3804 -s 1540
      2⤵
      • Program crash
      PID:264
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3804 -ip 3804
    1⤵
      PID:4688

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3804-1-0x0000000002DA0000-0x0000000002EA0000-memory.dmp

      Filesize

      1024KB

    • memory/3804-2-0x0000000002D00000-0x0000000002D4E000-memory.dmp

      Filesize

      312KB

    • memory/3804-3-0x0000000000400000-0x0000000000661000-memory.dmp

      Filesize

      2.4MB

    • memory/3804-6-0x0000000000400000-0x0000000000661000-memory.dmp

      Filesize

      2.4MB

    • memory/3804-5-0x0000000002D00000-0x0000000002D4E000-memory.dmp

      Filesize

      312KB

    • memory/3804-4-0x0000000000400000-0x0000000002B75000-memory.dmp

      Filesize

      39.5MB