General

  • Target

    a545672b2f596aa66356486779f19c0bbdc30a82ae11f0d598002fc7edf115c0

  • Size

    2.1MB

  • Sample

    240624-wdy9gaxhlq

  • MD5

    26178268aba099a5e9c1b0c63b84ac5e

  • SHA1

    acac33c32048f94902e6224ee9d31a0834a673ac

  • SHA256

    a545672b2f596aa66356486779f19c0bbdc30a82ae11f0d598002fc7edf115c0

  • SHA512

    936d6ffb8b2e9ae743b00bd4354ee3e6a34ccba326656cd282044f945d9a8dbb9323ebaf50eb4791229cba2fb4a8e644dc5056db650d1c2f238901bd55e6e5f7

  • SSDEEP

    24576:cC/gyrgOo5VvmUfq+Zc1Fsuqf9sLUfMxVVtes12FxwojKr98YGeGGHzqqikY+rPN:c3xbZcjHLUkxVVChjHZQHzqZ+rPlV

Malware Config

Extracted

Family

vidar

C2

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Targets

    • Target

      a545672b2f596aa66356486779f19c0bbdc30a82ae11f0d598002fc7edf115c0

    • Size

      2.1MB

    • MD5

      26178268aba099a5e9c1b0c63b84ac5e

    • SHA1

      acac33c32048f94902e6224ee9d31a0834a673ac

    • SHA256

      a545672b2f596aa66356486779f19c0bbdc30a82ae11f0d598002fc7edf115c0

    • SHA512

      936d6ffb8b2e9ae743b00bd4354ee3e6a34ccba326656cd282044f945d9a8dbb9323ebaf50eb4791229cba2fb4a8e644dc5056db650d1c2f238901bd55e6e5f7

    • SSDEEP

      24576:cC/gyrgOo5VvmUfq+Zc1Fsuqf9sLUfMxVVtes12FxwojKr98YGeGGHzqqikY+rPN:c3xbZcjHLUkxVVChjHZQHzqZ+rPlV

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • 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.

    • 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