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Analysis

  • max time kernel
    125s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/09/2024, 14:27

General

  • Target

    2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe

  • Size

    401KB

  • MD5

    cd681a24c9d79c3af8caa1843296a062

  • SHA1

    c18bfd79658cd691170595dd5b4dd586c21b954c

  • SHA256

    2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf

  • SHA512

    2527a1a2acdf8c87e4b459683f6f287bc6fb65ff9eb979c830ec9dfd685380c633787b247b65c3fe3bf57f5c598f48700742f8d8d056c971ed5744e2eb9f5cb5

  • SSDEEP

    12288:CgIVaGe6BEIaaJLq2vru6fv8PF5Nn5e4AkArjUdG8L:NGmLaufTe5rUdG8L

Malware Config

Extracted

Family

vidar

Version

11

Botnet

728eadc0b38790aac08b64fd1b8adb1f

C2

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Signatures

  • Detect Vidar Stealer 7 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Downloads MZ/PE file
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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 SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 2 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
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe
    "C:\Users\Admin\AppData\Local\Temp\2b85d82dd140d794a295b87bb250ebcdfa1aeb1d729f74c37ac0b07083e70daf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:636
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4176,i,2727319350781907497,7925939240893079607,262144 --variations-seed-version --mojo-platform-channel-handle=4240 /prefetch:8
    1⤵
      PID:348

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/636-9-0x0000000000400000-0x0000000000675000-memory.dmp

      Filesize

      2.5MB

    • memory/636-22-0x00000000222B0000-0x000000002250F000-memory.dmp

      Filesize

      2.4MB

    • memory/636-37-0x0000000000400000-0x0000000000675000-memory.dmp

      Filesize

      2.5MB

    • memory/636-4-0x0000000000400000-0x0000000000675000-memory.dmp

      Filesize

      2.5MB

    • memory/636-21-0x0000000000400000-0x0000000000675000-memory.dmp

      Filesize

      2.5MB

    • memory/636-11-0x0000000000400000-0x0000000000675000-memory.dmp

      Filesize

      2.5MB

    • memory/636-20-0x0000000000400000-0x0000000000675000-memory.dmp

      Filesize

      2.5MB

    • memory/636-38-0x0000000000400000-0x0000000000675000-memory.dmp

      Filesize

      2.5MB

    • memory/3008-1-0x00000000003C0000-0x0000000000428000-memory.dmp

      Filesize

      416KB

    • memory/3008-6-0x00000000744A0000-0x0000000074C50000-memory.dmp

      Filesize

      7.7MB

    • memory/3008-0-0x00000000744AE000-0x00000000744AF000-memory.dmp

      Filesize

      4KB

    • memory/3008-2-0x00000000744A0000-0x0000000074C50000-memory.dmp

      Filesize

      7.7MB

    • memory/3008-8-0x00000000744A0000-0x0000000074C50000-memory.dmp

      Filesize

      7.7MB

    • memory/3008-39-0x00000000744A0000-0x0000000074C50000-memory.dmp

      Filesize

      7.7MB