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General

  • Target

    197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01

  • Size

    2.4MB

  • Sample

    240524-et4qfscg89

  • MD5

    47c4d76fc76b9b0213148ea0bba44c2f

  • SHA1

    fcf9a628e7e8d267e6a65c21c138d1d3aea680c1

  • SHA256

    197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01

  • SHA512

    026a160159f474226662555db3fd550e62e5df79b4b74fd9a0b3cb19954551470cc47c4bfd297e6b0dd2fe3fd3f94306bbd5bda3618e90d104c76f765edf4286

  • SSDEEP

    49152:jxIRJF1HL+VdX68kUmJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dmtIuoITsdZ

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

      197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01

    • Size

      2.4MB

    • MD5

      47c4d76fc76b9b0213148ea0bba44c2f

    • SHA1

      fcf9a628e7e8d267e6a65c21c138d1d3aea680c1

    • SHA256

      197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01

    • SHA512

      026a160159f474226662555db3fd550e62e5df79b4b74fd9a0b3cb19954551470cc47c4bfd297e6b0dd2fe3fd3f94306bbd5bda3618e90d104c76f765edf4286

    • SSDEEP

      49152:jxIRJF1HL+VdX68kUmJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dmtIuoITsdZ

    • 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