General

  • Target

    10ac38b06dfe3d57cf37a2270e093bda56ec41a8a234ef213c0a17bfcdf5d0d1

  • Size

    2.0MB

  • Sample

    240526-bjc8zahh84

  • MD5

    9426d72df467cd3bd95b4fdf5e22a11a

  • SHA1

    a2072b48fde660ef741098980a90712fdd129473

  • SHA256

    10ac38b06dfe3d57cf37a2270e093bda56ec41a8a234ef213c0a17bfcdf5d0d1

  • SHA512

    d90b4275156f202575f96020bebcc18f262f357d57aea721a2447bbca8a8d88a4c35d6f7b7194446d73a28b2915107c07dc21310be9f87463d0dfd12f4fd9889

  • SSDEEP

    49152:s4K3x1vUGJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18GtIuoITsdZ

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

      10ac38b06dfe3d57cf37a2270e093bda56ec41a8a234ef213c0a17bfcdf5d0d1

    • Size

      2.0MB

    • MD5

      9426d72df467cd3bd95b4fdf5e22a11a

    • SHA1

      a2072b48fde660ef741098980a90712fdd129473

    • SHA256

      10ac38b06dfe3d57cf37a2270e093bda56ec41a8a234ef213c0a17bfcdf5d0d1

    • SHA512

      d90b4275156f202575f96020bebcc18f262f357d57aea721a2447bbca8a8d88a4c35d6f7b7194446d73a28b2915107c07dc21310be9f87463d0dfd12f4fd9889

    • SSDEEP

      49152:s4K3x1vUGJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18GtIuoITsdZ

    • 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