General

  • Target

    678d0dc27dde13fa512ccbd731f70d21b3b706d5b461ecd1e4266ee2d412c0e5

  • Size

    2.0MB

  • Sample

    240526-c6bjbscg46

  • MD5

    36ca9ac3b4066caf055e3c56c7ba0c1c

  • SHA1

    a2ae9237b920fad581ec60fbef8bb2525be1c2d0

  • SHA256

    678d0dc27dde13fa512ccbd731f70d21b3b706d5b461ecd1e4266ee2d412c0e5

  • SHA512

    3d7900098be7279f155fb1a62d5a1aa8d863fef9dbf6d0dac2e2b245f11013a6d3816ea0a4c4327a2316a8ea5eb17b4df4e24bb580986e9f988a0490a95d3e48

  • SSDEEP

    49152:s4K3x1vU6JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex186tIuoITsdZ

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

      678d0dc27dde13fa512ccbd731f70d21b3b706d5b461ecd1e4266ee2d412c0e5

    • Size

      2.0MB

    • MD5

      36ca9ac3b4066caf055e3c56c7ba0c1c

    • SHA1

      a2ae9237b920fad581ec60fbef8bb2525be1c2d0

    • SHA256

      678d0dc27dde13fa512ccbd731f70d21b3b706d5b461ecd1e4266ee2d412c0e5

    • SHA512

      3d7900098be7279f155fb1a62d5a1aa8d863fef9dbf6d0dac2e2b245f11013a6d3816ea0a4c4327a2316a8ea5eb17b4df4e24bb580986e9f988a0490a95d3e48

    • SSDEEP

      49152:s4K3x1vU6JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex186tIuoITsdZ

    • 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