General

  • Target

    13a72f6ac3615ec29775d6e86e9c275d255d27f4d332ce8a7cf5bd2516006517

  • Size

    2.0MB

  • Sample

    240525-k3vf2acf66

  • MD5

    6601fb94a0e23f9989dd2637608cb1f3

  • SHA1

    fb25501fee6186168c12076f767c9ebba11e038e

  • SHA256

    13a72f6ac3615ec29775d6e86e9c275d255d27f4d332ce8a7cf5bd2516006517

  • SHA512

    1b19bea721f3406d7f157823403768a0714f13310d5b9dd6da4d5b0a9d77b11f2128e36c8c662f628ac12a482cc3c5ad0470a0afe91a66ca5e09e8c852d1558a

  • SSDEEP

    49152:s4K3x1vUWJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18WtIuoITsdZ

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

      13a72f6ac3615ec29775d6e86e9c275d255d27f4d332ce8a7cf5bd2516006517

    • Size

      2.0MB

    • MD5

      6601fb94a0e23f9989dd2637608cb1f3

    • SHA1

      fb25501fee6186168c12076f767c9ebba11e038e

    • SHA256

      13a72f6ac3615ec29775d6e86e9c275d255d27f4d332ce8a7cf5bd2516006517

    • SHA512

      1b19bea721f3406d7f157823403768a0714f13310d5b9dd6da4d5b0a9d77b11f2128e36c8c662f628ac12a482cc3c5ad0470a0afe91a66ca5e09e8c852d1558a

    • SSDEEP

      49152:s4K3x1vUWJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18WtIuoITsdZ

    • 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