Analysis

  • max time kernel
    94s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/02/2025, 11:39

General

  • Target

    9814685cd4825b5d33a3506b50360e72144649073d3021439831ca8fa756eefc.exe

  • Size

    1.7MB

  • MD5

    63d56ec7806909b5e466a9c679587392

  • SHA1

    9ffd484caff8b521e312bc7c6c32b20fc8202f16

  • SHA256

    9814685cd4825b5d33a3506b50360e72144649073d3021439831ca8fa756eefc

  • SHA512

    819b0eb2ace1a81f14d8627b6bb07694d4733385499ea7573ba9814a3307be0097abc2f66c4cd1e2300a64e300b181e3823c89a7e79bcaead9fe15d012fd7984

  • SSDEEP

    49152:qI7AtoN7BgdPAzrkLxmhnYk7G9laS1rnRw:qYeoxido32x4Ys8lF1r

Malware Config

Extracted

Family

stealc

Botnet

reno

C2

http://185.215.113.115

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\9814685cd4825b5d33a3506b50360e72144649073d3021439831ca8fa756eefc.exe
    "C:\Users\Admin\AppData\Local\Temp\9814685cd4825b5d33a3506b50360e72144649073d3021439831ca8fa756eefc.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:4620
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4620 -s 1492
      2⤵
      • Program crash
      PID:2840
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4620 -ip 4620
    1⤵
      PID:4076

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4620-0-0x0000000000D70000-0x00000000013F7000-memory.dmp

      Filesize

      6.5MB

    • memory/4620-1-0x0000000076F94000-0x0000000076F96000-memory.dmp

      Filesize

      8KB

    • memory/4620-2-0x0000000000D71000-0x0000000000D88000-memory.dmp

      Filesize

      92KB

    • memory/4620-3-0x0000000000D70000-0x00000000013F7000-memory.dmp

      Filesize

      6.5MB

    • memory/4620-4-0x0000000000D70000-0x00000000013F7000-memory.dmp

      Filesize

      6.5MB

    • memory/4620-5-0x0000000000D70000-0x00000000013F7000-memory.dmp

      Filesize

      6.5MB

    • memory/4620-6-0x0000000000D70000-0x00000000013F7000-memory.dmp

      Filesize

      6.5MB

    • memory/4620-7-0x0000000000D70000-0x00000000013F7000-memory.dmp

      Filesize

      6.5MB

    • memory/4620-8-0x0000000000D70000-0x00000000013F7000-memory.dmp

      Filesize

      6.5MB