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Analysis

  • max time kernel
    93s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/12/2024, 06:42

General

  • Target

    03bc86e0386518d5f0a1f425bb23faf848aae84bcf9ec7722da662e16415971b.exe

  • Size

    2.7MB

  • MD5

    f133453521fe781ba34c565fa05d5c17

  • SHA1

    bc08dbfedab93a56e3f59d3dfd1deda8dc9c4fe1

  • SHA256

    03bc86e0386518d5f0a1f425bb23faf848aae84bcf9ec7722da662e16415971b

  • SHA512

    ec6a5d8b617c9b8b0f99f8d6ded1a78ca97e39440dc0f89aab85a4a703ba3c5b4d039df5d9fd5ff7fdc2434b62e2fd54c3230c3cefbbddf267c8be48023a7c7f

  • SSDEEP

    49152:4sFK3wJ3KBDZjLFiLw+nvKW/DmxISZD2St/lKz9xS1:4qK3wJ3KBFLFilnvKmEZDn/Q9k

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.

  • 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\03bc86e0386518d5f0a1f425bb23faf848aae84bcf9ec7722da662e16415971b.exe
    "C:\Users\Admin\AppData\Local\Temp\03bc86e0386518d5f0a1f425bb23faf848aae84bcf9ec7722da662e16415971b.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:2360
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2360 -s 1468
      2⤵
      • Program crash
      PID:2460
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2360 -ip 2360
    1⤵
      PID:3256

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2360-0-0x0000000000970000-0x0000000000E66000-memory.dmp

      Filesize

      5.0MB

    • memory/2360-1-0x0000000077B14000-0x0000000077B16000-memory.dmp

      Filesize

      8KB

    • memory/2360-2-0x0000000000971000-0x0000000000988000-memory.dmp

      Filesize

      92KB

    • memory/2360-3-0x0000000000970000-0x0000000000E66000-memory.dmp

      Filesize

      5.0MB

    • memory/2360-4-0x0000000000970000-0x0000000000E66000-memory.dmp

      Filesize

      5.0MB

    • memory/2360-5-0x0000000000970000-0x0000000000E66000-memory.dmp

      Filesize

      5.0MB

    • memory/2360-6-0x0000000000970000-0x0000000000E66000-memory.dmp

      Filesize

      5.0MB

    • memory/2360-7-0x0000000000970000-0x0000000000E66000-memory.dmp

      Filesize

      5.0MB

    • memory/2360-8-0x0000000000970000-0x0000000000E66000-memory.dmp

      Filesize

      5.0MB