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Analysis

  • max time kernel
    50s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    26/01/2025, 16:09

General

  • Target

    9f969148b95db0e724ecd31010d9d681ee4980cb0e992190b8b2693675316ed3.exe

  • Size

    1.7MB

  • MD5

    1f0f6a77f1d6f780501b015ba797d2cc

  • SHA1

    e4653a09d365177c78a372ed4112408549c809bc

  • SHA256

    9f969148b95db0e724ecd31010d9d681ee4980cb0e992190b8b2693675316ed3

  • SHA512

    f00c6722f7f840a5f25d5afed098779ccc68ed3b2269a5b8288501b93a7a42c50474d2896fdf594840880d21cd4d62c44dcd9afa45c2133c9ef66567e549a86a

  • SSDEEP

    49152:AcPxcY5L+/3lS3N4dalazwaX8CV5x2gw:AcPKK+79z3MCVyg

Malware Config

Extracted

Family

stealc

Botnet

brat

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Stealc family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9f969148b95db0e724ecd31010d9d681ee4980cb0e992190b8b2693675316ed3.exe
    "C:\Users\Admin\AppData\Local\Temp\9f969148b95db0e724ecd31010d9d681ee4980cb0e992190b8b2693675316ed3.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2508
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2508 -s 920
      2⤵
      • Program crash
      PID:1680

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2508-0-0x0000000000AF0000-0x0000000001178000-memory.dmp

    Filesize

    6.5MB

  • memory/2508-1-0x0000000077D20000-0x0000000077D22000-memory.dmp

    Filesize

    8KB

  • memory/2508-2-0x0000000000AF1000-0x0000000000B08000-memory.dmp

    Filesize

    92KB

  • memory/2508-3-0x0000000000AF0000-0x0000000001178000-memory.dmp

    Filesize

    6.5MB

  • memory/2508-4-0x0000000000AF0000-0x0000000001178000-memory.dmp

    Filesize

    6.5MB

  • memory/2508-5-0x0000000000AF0000-0x0000000001178000-memory.dmp

    Filesize

    6.5MB

  • memory/2508-6-0x0000000000AF0000-0x0000000001178000-memory.dmp

    Filesize

    6.5MB

  • memory/2508-7-0x0000000000AF0000-0x0000000001178000-memory.dmp

    Filesize

    6.5MB

  • memory/2508-8-0x0000000000AF0000-0x0000000001178000-memory.dmp

    Filesize

    6.5MB

  • memory/2508-9-0x0000000000AF0000-0x0000000001178000-memory.dmp

    Filesize

    6.5MB

  • memory/2508-10-0x0000000000AF0000-0x0000000001178000-memory.dmp

    Filesize

    6.5MB

  • memory/2508-11-0x0000000000AF0000-0x0000000001178000-memory.dmp

    Filesize

    6.5MB