General

  • Target

    f76712318afdef73b24d4a656ed524ab936bb8927c027bfb302eee8fd99fe4c9

  • Size

    2.0MB

  • Sample

    240525-c6m75abf9s

  • MD5

    512c4ae9617def3de05dcf5251e594a7

  • SHA1

    a187deb51ab4afd0d383a21e6fcf67db2e7a9283

  • SHA256

    f76712318afdef73b24d4a656ed524ab936bb8927c027bfb302eee8fd99fe4c9

  • SHA512

    b419789c0b44fed25b6e5408d21765dbbd376f5a21752da16b4ed1f6ab3c7377301ce0b09d8cec442f863d0be4172e0d7705529cb2f12d39ffc53f92d213f668

  • 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

      f76712318afdef73b24d4a656ed524ab936bb8927c027bfb302eee8fd99fe4c9

    • Size

      2.0MB

    • MD5

      512c4ae9617def3de05dcf5251e594a7

    • SHA1

      a187deb51ab4afd0d383a21e6fcf67db2e7a9283

    • SHA256

      f76712318afdef73b24d4a656ed524ab936bb8927c027bfb302eee8fd99fe4c9

    • SHA512

      b419789c0b44fed25b6e5408d21765dbbd376f5a21752da16b4ed1f6ab3c7377301ce0b09d8cec442f863d0be4172e0d7705529cb2f12d39ffc53f92d213f668

    • 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