General

  • Target

    7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16

  • Size

    2.0MB

  • Sample

    240526-q5kbqsgf7x

  • MD5

    254c7d3232f05ea3a9184c604130daeb

  • SHA1

    120e16e21a855f3a1bad97ad6a44ad0d81bc4548

  • SHA256

    7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16

  • SHA512

    5c9adb149ffe2b3cd6ba47f8c03698530d0fb10c2ea867fda763222ab99be7c68154d256919c8fa1010daa30061be536f1a88b1580d9806b8ea382f6d690c238

  • SSDEEP

    49152:OePpQE5JtTF+TxMoxc1TU+j+dAzGwlrh:OePpQE5tIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16

    • Size

      2.0MB

    • MD5

      254c7d3232f05ea3a9184c604130daeb

    • SHA1

      120e16e21a855f3a1bad97ad6a44ad0d81bc4548

    • SHA256

      7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16

    • SHA512

      5c9adb149ffe2b3cd6ba47f8c03698530d0fb10c2ea867fda763222ab99be7c68154d256919c8fa1010daa30061be536f1a88b1580d9806b8ea382f6d690c238

    • SSDEEP

      49152:OePpQE5JtTF+TxMoxc1TU+j+dAzGwlrh:OePpQE5tIuoITsdZ

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • 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