General

  • Target

    6807b861734d983dc23e8de06f2fd687ad30c999a7cd7acee61010498e98ce47

  • Size

    2.0MB

  • Sample

    240525-dx2vlach75

  • MD5

    b4bb77441a672079dc50f80ea9e2689d

  • SHA1

    ff38f1ba406cb2260a6a3621b439083442f07630

  • SHA256

    6807b861734d983dc23e8de06f2fd687ad30c999a7cd7acee61010498e98ce47

  • SHA512

    4ee6b02db5b3326f52c7365546116c8ccd85a7aad85427893f3674888c88631dd26f170212d7211b2de95389eaf3df08b3b4c54324ad0713ff67957b2749dbd8

  • SSDEEP

    49152:s4K3x1vUiJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18itIuoITsdZ

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

      6807b861734d983dc23e8de06f2fd687ad30c999a7cd7acee61010498e98ce47

    • Size

      2.0MB

    • MD5

      b4bb77441a672079dc50f80ea9e2689d

    • SHA1

      ff38f1ba406cb2260a6a3621b439083442f07630

    • SHA256

      6807b861734d983dc23e8de06f2fd687ad30c999a7cd7acee61010498e98ce47

    • SHA512

      4ee6b02db5b3326f52c7365546116c8ccd85a7aad85427893f3674888c88631dd26f170212d7211b2de95389eaf3df08b3b4c54324ad0713ff67957b2749dbd8

    • SSDEEP

      49152:s4K3x1vUiJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18itIuoITsdZ

    • 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