General

  • Target

    3cf065a8bd9a5577d0781d7ffc84d5303bbc9767329719f80fd5e0f88b2ad635

  • Size

    1.9MB

  • Sample

    240528-hjtpaaba29

  • MD5

    af78d47eeb1969bf20a9671b776641a1

  • SHA1

    f9145cd316aec052d97f6cf6a766decd8e022e70

  • SHA256

    3cf065a8bd9a5577d0781d7ffc84d5303bbc9767329719f80fd5e0f88b2ad635

  • SHA512

    1ceff36b4851adfd9e089a272d278d7de76814369843774e77ff992f58fb12ee2b463fedc68f2790ae2426d15c0eb8f6f0402197006bc33b0babee216a1bbc3a

  • SSDEEP

    49152:CdKfTn6v2JtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnNtIuoITsdZ

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

      3cf065a8bd9a5577d0781d7ffc84d5303bbc9767329719f80fd5e0f88b2ad635

    • Size

      1.9MB

    • MD5

      af78d47eeb1969bf20a9671b776641a1

    • SHA1

      f9145cd316aec052d97f6cf6a766decd8e022e70

    • SHA256

      3cf065a8bd9a5577d0781d7ffc84d5303bbc9767329719f80fd5e0f88b2ad635

    • SHA512

      1ceff36b4851adfd9e089a272d278d7de76814369843774e77ff992f58fb12ee2b463fedc68f2790ae2426d15c0eb8f6f0402197006bc33b0babee216a1bbc3a

    • SSDEEP

      49152:CdKfTn6v2JtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnNtIuoITsdZ

    • 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