General

  • Target

    7876dcdbde57a937e542bc0acc1246440d916bc0e8b36092df843cb3cb710d6d

  • Size

    2.0MB

  • Sample

    240526-b8g88aae5w

  • MD5

    4ef9f0830130c0681e0b4c6361e543ae

  • SHA1

    50c02afe6cdd963f625c2a18a96c62a75abd5926

  • SHA256

    7876dcdbde57a937e542bc0acc1246440d916bc0e8b36092df843cb3cb710d6d

  • SHA512

    3f341dd59213dfad1385ead5549695f3cdb5c3bd1476cacae244bb4e8ceb342187fee1dd95c70cb1180804ab7439fb947c5639c978a390df3e2f786ee0e99287

  • SSDEEP

    49152:s4K3x1vUSJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18StIuoITsdZ

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

      7876dcdbde57a937e542bc0acc1246440d916bc0e8b36092df843cb3cb710d6d

    • Size

      2.0MB

    • MD5

      4ef9f0830130c0681e0b4c6361e543ae

    • SHA1

      50c02afe6cdd963f625c2a18a96c62a75abd5926

    • SHA256

      7876dcdbde57a937e542bc0acc1246440d916bc0e8b36092df843cb3cb710d6d

    • SHA512

      3f341dd59213dfad1385ead5549695f3cdb5c3bd1476cacae244bb4e8ceb342187fee1dd95c70cb1180804ab7439fb947c5639c978a390df3e2f786ee0e99287

    • SSDEEP

      49152:s4K3x1vUSJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18StIuoITsdZ

    • 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

    • 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