Analysis

  • max time kernel
    95s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-12-2024 08:59

General

  • Target

    O50FN_file.exe

  • Size

    1.7MB

  • MD5

    104c87e36413460a7aff1c0c1b165515

  • SHA1

    c48db3d2a6503255396dc0039a119073bce06450

  • SHA256

    f2bfb48cd4a0e780ff01474ff282d2c00f68c9f0e3ba2adc1716c29889917578

  • SHA512

    f85b3fec710a3d9201accc67d732a08ef9d66577fdffb8ef0ee20aa64ac18df27cb6edd06e75b844f400bbd1da3e973cd2498c55f9d7fedece93c9c8f012eb57

  • SSDEEP

    49152:PIWLYQf9l5JqqcP91IQO3rr9RzT434dR3:gWX6VeHrpJTTd

Malware Config

Extracted

Family

stealc

Botnet

stok

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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\O50FN_file.exe
    "C:\Users\Admin\AppData\Local\Temp\O50FN_file.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
    • Suspicious behavior: EnumeratesProcesses
    PID:4648

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4648-0-0x0000000000660000-0x0000000000CF1000-memory.dmp

    Filesize

    6.6MB

  • memory/4648-1-0x0000000077714000-0x0000000077716000-memory.dmp

    Filesize

    8KB

  • memory/4648-2-0x0000000000661000-0x0000000000678000-memory.dmp

    Filesize

    92KB

  • memory/4648-3-0x0000000000660000-0x0000000000CF1000-memory.dmp

    Filesize

    6.6MB

  • memory/4648-5-0x0000000000660000-0x0000000000CF1000-memory.dmp

    Filesize

    6.6MB