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Analysis

  • max time kernel
    94s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/01/2025, 20:30

General

  • Target

    4f2c5552fc7799fe28d5cc6712d4c5b5e4723f9f00204a389299aac6643119b9.exe

  • Size

    1.7MB

  • MD5

    edca42a9f74cae55140da663565621ba

  • SHA1

    2c8766c239190ce64d9604b4cb818c4dcad82825

  • SHA256

    4f2c5552fc7799fe28d5cc6712d4c5b5e4723f9f00204a389299aac6643119b9

  • SHA512

    e6bb95cf1fdc0abb89b2ac9d8016d1b2ab5f2fd3fa5ffdb230b94055bd6c7ae25af4329670c90de5112f9cdf9bf22638a7681963472b2e9dd56c675a758cc0ae

  • SSDEEP

    24576:O+iHPqaXVzwayibhgqHsamc/DcUAK4na0rAqlORhqbvcT9MnLMtmjSiph:R+PqaFyibBMaDcUIa0LoiYT9MLr

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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4f2c5552fc7799fe28d5cc6712d4c5b5e4723f9f00204a389299aac6643119b9.exe
    "C:\Users\Admin\AppData\Local\Temp\4f2c5552fc7799fe28d5cc6712d4c5b5e4723f9f00204a389299aac6643119b9.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
    PID:4928
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4928 -s 1488
      2⤵
      • Program crash
      PID:4480
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4928 -ip 4928
    1⤵
      PID:4456

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4928-0-0x0000000000050000-0x00000000006D7000-memory.dmp

      Filesize

      6.5MB

    • memory/4928-1-0x0000000077074000-0x0000000077076000-memory.dmp

      Filesize

      8KB

    • memory/4928-2-0x0000000000051000-0x0000000000068000-memory.dmp

      Filesize

      92KB

    • memory/4928-3-0x0000000000050000-0x00000000006D7000-memory.dmp

      Filesize

      6.5MB

    • memory/4928-4-0x0000000000050000-0x00000000006D7000-memory.dmp

      Filesize

      6.5MB

    • memory/4928-5-0x0000000000050000-0x00000000006D7000-memory.dmp

      Filesize

      6.5MB

    • memory/4928-6-0x0000000000050000-0x00000000006D7000-memory.dmp

      Filesize

      6.5MB

    • memory/4928-7-0x0000000000050000-0x00000000006D7000-memory.dmp

      Filesize

      6.5MB

    • memory/4928-8-0x0000000000050000-0x00000000006D7000-memory.dmp

      Filesize

      6.5MB