Analysis

  • max time kernel
    93s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2024 05:37

General

  • Target

    7A4RB_file.exe

  • Size

    1.8MB

  • MD5

    33a7b673dc34efe24c0c02b751813661

  • SHA1

    42803e38d618f824ba68973c5ed02af38b65639a

  • SHA256

    168703f287c488a394f2d499dc9ef9e7af7e622901e749bfdd66803008193c08

  • SHA512

    8a80e8581e4005da760550044221877e583c8aa39ef4b70cf21971d72fed6359306a5d9a0905272aec549cb879f1197c71bcd7bd9aa6b82cfc260a3ecce6df28

  • SSDEEP

    49152:i3Rjdf2/+esLGLhM20NarRm/ZH8tK5Q8I5W5qMs1aU+CVo:i3Rjdu2hyqTaVmxeKKSYXXFo

Malware Config

Extracted

Family

stealc

Botnet

drum

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\7A4RB_file.exe
    "C:\Users\Admin\AppData\Local\Temp\7A4RB_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:1236

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1236-0-0x0000000000F40000-0x00000000015EE000-memory.dmp

    Filesize

    6.7MB

  • memory/1236-1-0x00000000771E4000-0x00000000771E6000-memory.dmp

    Filesize

    8KB

  • memory/1236-2-0x0000000000F41000-0x0000000000F58000-memory.dmp

    Filesize

    92KB

  • memory/1236-3-0x0000000000F40000-0x00000000015EE000-memory.dmp

    Filesize

    6.7MB

  • memory/1236-5-0x0000000000F40000-0x00000000015EE000-memory.dmp

    Filesize

    6.7MB