General

  • Target

    trigger.ps1

  • Size

    32B

  • Sample

    250213-31w6ysxrhz

  • MD5

    729c74cc2a550d64e3e91d1211f55e67

  • SHA1

    e3a34176b9df0cf5282c8fe37efa47f1a8827e60

  • SHA256

    8a66f7bf189f984691367d3cab7c59c69ccdc4d1dcdf72bce2d751f5c62cb89e

  • SHA512

    cc6ff58605a04636689dfdcaa7d06d0cf2b77e74fc721196d37420181dd4d6f692ce8c8be1e68c15e37eab5dcae1fc81c4600aeb40c98924939ba3a7ddb0ba21

Malware Config

Extracted

Family

vidar

C2

https://t.me/b4cha00

https://steamcommunity.com/profiles/76561199825403037

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:137.0) Gecko/20100101 Firefox/137.0

Targets

    • Target

      trigger.ps1

    • Size

      32B

    • MD5

      729c74cc2a550d64e3e91d1211f55e67

    • SHA1

      e3a34176b9df0cf5282c8fe37efa47f1a8827e60

    • SHA256

      8a66f7bf189f984691367d3cab7c59c69ccdc4d1dcdf72bce2d751f5c62cb89e

    • SHA512

      cc6ff58605a04636689dfdcaa7d06d0cf2b77e74fc721196d37420181dd4d6f692ce8c8be1e68c15e37eab5dcae1fc81c4600aeb40c98924939ba3a7ddb0ba21

    • Detect Vidar Stealer

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Uses browser remote debugging

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

    • 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.

    • 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.

MITRE ATT&CK Enterprise v15

Tasks