General

  • Target

    build.exe

  • Size

    196KB

  • Sample

    250227-s8dpga1wgy

  • MD5

    11f55c34bc3a925022890e513d97b1af

  • SHA1

    c5e84d0973494f2ba79dc952d401e09e36d6d13f

  • SHA256

    e6ecece69a1919271ece2bbe62c2fde40d29aa539bd3bc18d4b626deef423afc

  • SHA512

    bfd5b754059f4afd17352f6d9570173a11d36bc52875017be58f0d78836b279df00c0fb49a34644e5c89ce7252a173607ccd5d61156bc2df49431d73849e698e

  • SSDEEP

    3072:WKHsQPsIH+WQuCw5fp4b/7XHrRKl/OiJeNKUjQHFZy+j6WafP:ROvu5fp4Dcl/OMeNfsrjiX

Malware Config

Extracted

Family

vidar

Botnet

ir7am

C2

https://t.me/l793oy

https://steamcommunity.com/profiles/76561199829660832

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) Chrome/131.0.0.0 Safari/537.36 OPR/116.0.0.0

Targets

    • Target

      build.exe

    • Size

      196KB

    • MD5

      11f55c34bc3a925022890e513d97b1af

    • SHA1

      c5e84d0973494f2ba79dc952d401e09e36d6d13f

    • SHA256

      e6ecece69a1919271ece2bbe62c2fde40d29aa539bd3bc18d4b626deef423afc

    • SHA512

      bfd5b754059f4afd17352f6d9570173a11d36bc52875017be58f0d78836b279df00c0fb49a34644e5c89ce7252a173607ccd5d61156bc2df49431d73849e698e

    • SSDEEP

      3072:WKHsQPsIH+WQuCw5fp4b/7XHrRKl/OiJeNKUjQHFZy+j6WafP:ROvu5fp4Dcl/OMeNfsrjiX

    • Detect Vidar Stealer

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks