General

  • Target

    376de18ef5ccdae65cf3223811ecd5ef2bbeff7969fe81149b6db090d3c0e40f

  • Size

    2.6MB

  • Sample

    240528-r99b4aaf65

  • MD5

    5afb6c7d8f8b593a19a5e8f40622f383

  • SHA1

    649eb33b727b09d5f3c4bdd7dc80f75ea776a4db

  • SHA256

    376de18ef5ccdae65cf3223811ecd5ef2bbeff7969fe81149b6db090d3c0e40f

  • SHA512

    59cede9ee2c6f839f523336d58388d4642895bce420052523d542446b5d2b53bb85c107570d928481815ff1c78026e01d6ccd4ba680d182bf76f4e44c3257a6d

  • SSDEEP

    49152:XQzIzMiqCNwGJtTF+TxMoxc1TU+j+dAzGwlrh:XY598ztIuoITsdZ

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

      376de18ef5ccdae65cf3223811ecd5ef2bbeff7969fe81149b6db090d3c0e40f

    • Size

      2.6MB

    • MD5

      5afb6c7d8f8b593a19a5e8f40622f383

    • SHA1

      649eb33b727b09d5f3c4bdd7dc80f75ea776a4db

    • SHA256

      376de18ef5ccdae65cf3223811ecd5ef2bbeff7969fe81149b6db090d3c0e40f

    • SHA512

      59cede9ee2c6f839f523336d58388d4642895bce420052523d542446b5d2b53bb85c107570d928481815ff1c78026e01d6ccd4ba680d182bf76f4e44c3257a6d

    • SSDEEP

      49152:XQzIzMiqCNwGJtTF+TxMoxc1TU+j+dAzGwlrh:XY598ztIuoITsdZ

    • 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