General

  • Target

    cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8

  • Size

    2.4MB

  • Sample

    240603-gwlnrsfd63

  • MD5

    fa3b69af927ad405668e5b2d569d7e66

  • SHA1

    9a9a881571dc2e8fcb0e20608e5c92d209d02ce2

  • SHA256

    cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8

  • SHA512

    9d56aa149dd437d2dff73272f7d0f32ef2cf877723774e551d38f24abea0fabf5ba41d0d009928fc49102928a0694e9bab4ef2240d71311ffc87f9bb2248ffe7

  • SSDEEP

    49152:wQc81KnB/a/hNT/dRYa8aesY3Ot4N7G/:wDta/hNT/dRn0etD/

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/ta904ek

https://steamcommunity.com/profiles/76561199695752269

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8

    • Size

      2.4MB

    • MD5

      fa3b69af927ad405668e5b2d569d7e66

    • SHA1

      9a9a881571dc2e8fcb0e20608e5c92d209d02ce2

    • SHA256

      cb9eb4cf9f04ef0d5c3c2c3dd8d0154dbd0d4d3073359be6ca9e723fe4c31fa8

    • SHA512

      9d56aa149dd437d2dff73272f7d0f32ef2cf877723774e551d38f24abea0fabf5ba41d0d009928fc49102928a0694e9bab4ef2240d71311ffc87f9bb2248ffe7

    • SSDEEP

      49152:wQc81KnB/a/hNT/dRYa8aesY3Ot4N7G/:wDta/hNT/dRn0etD/

    • 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

    • Loads dropped DLL

    • 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