General

  • Target

    1c564f9fff297afbe27e4c179482167dee8129da16097de7fb55afa8962d49ab

  • Size

    2.0MB

  • Sample

    240525-d5by5sdb2s

  • MD5

    4c3fc5f6e037b8b26e50789537bc7130

  • SHA1

    8ebede7bc7d6b841a3ff907c95c906f2f65a2b02

  • SHA256

    1c564f9fff297afbe27e4c179482167dee8129da16097de7fb55afa8962d49ab

  • SHA512

    aeba6f333bb75f577a9b6065681bb0190785ea7b42d0a3cfc6c53a1bcd0140b0540a733b736dd0a12125edd32e7216e2dd929cd1e52051b21ccacc14920360cd

  • SSDEEP

    49152:s4K3x1vUmJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18mtIuoITsdZ

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

      1c564f9fff297afbe27e4c179482167dee8129da16097de7fb55afa8962d49ab

    • Size

      2.0MB

    • MD5

      4c3fc5f6e037b8b26e50789537bc7130

    • SHA1

      8ebede7bc7d6b841a3ff907c95c906f2f65a2b02

    • SHA256

      1c564f9fff297afbe27e4c179482167dee8129da16097de7fb55afa8962d49ab

    • SHA512

      aeba6f333bb75f577a9b6065681bb0190785ea7b42d0a3cfc6c53a1bcd0140b0540a733b736dd0a12125edd32e7216e2dd929cd1e52051b21ccacc14920360cd

    • SSDEEP

      49152:s4K3x1vUmJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18mtIuoITsdZ

    • 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