General

  • Target

    ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610

  • Size

    2.0MB

  • Sample

    240525-ht5vasab25

  • MD5

    5350325dada034c32fed608093b3e031

  • SHA1

    c02697defc30a64610ca7230125f9f37290c3f30

  • SHA256

    ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610

  • SHA512

    b3a80c5dc9a934442666ae9e2fbf791189bc8b07f190d34d5ce273a0334bfd5fa54550975b3818e8d5c574a995f4bc879b7c80563565e64d3206d02f01ed7c41

  • SSDEEP

    49152:s4K3x1vUKJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18KtIuoITsdZ

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

      ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610

    • Size

      2.0MB

    • MD5

      5350325dada034c32fed608093b3e031

    • SHA1

      c02697defc30a64610ca7230125f9f37290c3f30

    • SHA256

      ca824063e8c7314965676fe79d070e85bf5318557873481ed572f18045469610

    • SHA512

      b3a80c5dc9a934442666ae9e2fbf791189bc8b07f190d34d5ce273a0334bfd5fa54550975b3818e8d5c574a995f4bc879b7c80563565e64d3206d02f01ed7c41

    • SSDEEP

      49152:s4K3x1vUKJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18KtIuoITsdZ

    • 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