Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2024 00:04

General

  • Target

    875YK_file.exe

  • Size

    1.7MB

  • MD5

    7f133608117d2d14e36a7b73d6c173af

  • SHA1

    b0d7ad4e7b66129b16512761d4a86303b5928a81

  • SHA256

    3806b9f4eb73630796343fa069a80fc29705bd31f719ab9ad8841a17f225b8c4

  • SHA512

    1434642cfce942003bce803deba580aff7f420a1c0868ff43b6c891039568b6513667f4c14ec421c37dbcb8a7e3b9b3c9c256beed476cc1099f396d9bd5ae90e

  • SSDEEP

    49152:anx5e/w4qYaUEHrsqpiUIcHfHfgJQrLo+MwudQ:axcwUavHrsqNIcHfYJG1uS

Malware Config

Extracted

Family

stealc

Botnet

mars

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\875YK_file.exe
    "C:\Users\Admin\AppData\Local\Temp\875YK_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:4440

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4440-0-0x0000000000780000-0x0000000000E16000-memory.dmp

    Filesize

    6.6MB

  • memory/4440-1-0x0000000077B74000-0x0000000077B76000-memory.dmp

    Filesize

    8KB

  • memory/4440-2-0x0000000000781000-0x0000000000798000-memory.dmp

    Filesize

    92KB

  • memory/4440-3-0x0000000000780000-0x0000000000E16000-memory.dmp

    Filesize

    6.6MB

  • memory/4440-4-0x0000000000780000-0x0000000000E16000-memory.dmp

    Filesize

    6.6MB