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Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    22/01/2025, 15:42

General

  • Target

    2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.exe

  • Size

    1.7MB

  • MD5

    026de52964103c3f11b72d6e321d5971

  • SHA1

    33c73f71ef01e964ef44a778d0c76f6aadedc1b2

  • SHA256

    2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589

  • SHA512

    32528baaf8472978bb2cda82b5988103fb94555baf22e2c9044ca46e2b193b6e8eb37aeb77f9a2a8557c581767746705d318ea8fb378786ad56b7c33442e55f8

  • SSDEEP

    49152:tUAG/BeGcy0GOOusWV2N6YYH+BEUqfj2uGkW:tUfe5y9Bfs/+BEUwW

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\2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.exe
    "C:\Users\Admin\AppData\Local\Temp\2c076e48bff5fb538be86fcfdc8c1657613200cdaa27fa0e8a6f8e46d2aa9589.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:2380
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2380 -s 944
      2⤵
      • Program crash
      PID:2696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2380-0-0x00000000009D0000-0x000000000106C000-memory.dmp

    Filesize

    6.6MB

  • memory/2380-1-0x0000000077240000-0x0000000077242000-memory.dmp

    Filesize

    8KB

  • memory/2380-2-0x00000000009D1000-0x00000000009E8000-memory.dmp

    Filesize

    92KB

  • memory/2380-3-0x00000000009D0000-0x000000000106C000-memory.dmp

    Filesize

    6.6MB

  • memory/2380-4-0x00000000009D0000-0x000000000106C000-memory.dmp

    Filesize

    6.6MB

  • memory/2380-5-0x00000000009D0000-0x000000000106C000-memory.dmp

    Filesize

    6.6MB

  • memory/2380-6-0x00000000009D0000-0x000000000106C000-memory.dmp

    Filesize

    6.6MB

  • memory/2380-7-0x00000000009D0000-0x000000000106C000-memory.dmp

    Filesize

    6.6MB

  • memory/2380-8-0x00000000009D0000-0x000000000106C000-memory.dmp

    Filesize

    6.6MB

  • memory/2380-9-0x00000000009D0000-0x000000000106C000-memory.dmp

    Filesize

    6.6MB

  • memory/2380-10-0x00000000009D0000-0x000000000106C000-memory.dmp

    Filesize

    6.6MB

  • memory/2380-11-0x00000000009D0000-0x000000000106C000-memory.dmp

    Filesize

    6.6MB