General

  • Target

    62bd5a7b8df3406a6765eff024aa03fb56c6afc591f9857924181b79fc70540a

  • Size

    2.0MB

  • Sample

    240526-a1psnagd4y

  • MD5

    d1d069a1348168c65dbb6d8debe33061

  • SHA1

    bba57883f69abbe9a62dc0e107b08f0552e28c43

  • SHA256

    62bd5a7b8df3406a6765eff024aa03fb56c6afc591f9857924181b79fc70540a

  • SHA512

    fae7bc36593eabf26d28075bf6f2883c4db6026132c9d8719e207ef8ef9d84da4b6ae9462ed2e6ab2d986fc8de48d87b6596cc1068027d826f3e792e0e174a52

  • SSDEEP

    49152:s4K3x1vUeJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18etIuoITsdZ

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

      62bd5a7b8df3406a6765eff024aa03fb56c6afc591f9857924181b79fc70540a

    • Size

      2.0MB

    • MD5

      d1d069a1348168c65dbb6d8debe33061

    • SHA1

      bba57883f69abbe9a62dc0e107b08f0552e28c43

    • SHA256

      62bd5a7b8df3406a6765eff024aa03fb56c6afc591f9857924181b79fc70540a

    • SHA512

      fae7bc36593eabf26d28075bf6f2883c4db6026132c9d8719e207ef8ef9d84da4b6ae9462ed2e6ab2d986fc8de48d87b6596cc1068027d826f3e792e0e174a52

    • SSDEEP

      49152:s4K3x1vUeJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18etIuoITsdZ

    • 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 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