General

  • Target

    39394acabf7faa80df1b3f2ba51a51aaa5f00d8818ea2ad1354d2984fa01c169

  • Size

    2.0MB

  • Sample

    240526-bpc56ahe8y

  • MD5

    10bdeeb628816ae286d11f8f13a1bbff

  • SHA1

    5e24dabc917bd3a87e3fb9a828b26232777d3dfe

  • SHA256

    39394acabf7faa80df1b3f2ba51a51aaa5f00d8818ea2ad1354d2984fa01c169

  • SHA512

    2ac5c99ee2a8ea8232db604cc2a7ff4aae2b53b623033d2f0e03b6927575c4326f21ee3d84d39c7abf4f0250c71097c18dd73e9770d4dd166907fafe7170151a

  • SSDEEP

    49152:s4K3x1vU6JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex186tIuoITsdZ

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

      39394acabf7faa80df1b3f2ba51a51aaa5f00d8818ea2ad1354d2984fa01c169

    • Size

      2.0MB

    • MD5

      10bdeeb628816ae286d11f8f13a1bbff

    • SHA1

      5e24dabc917bd3a87e3fb9a828b26232777d3dfe

    • SHA256

      39394acabf7faa80df1b3f2ba51a51aaa5f00d8818ea2ad1354d2984fa01c169

    • SHA512

      2ac5c99ee2a8ea8232db604cc2a7ff4aae2b53b623033d2f0e03b6927575c4326f21ee3d84d39c7abf4f0250c71097c18dd73e9770d4dd166907fafe7170151a

    • SSDEEP

      49152:s4K3x1vU6JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex186tIuoITsdZ

    • 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