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General

  • Target

    fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512

  • Size

    2.0MB

  • Sample

    240524-cqhygahg4t

  • MD5

    6b79fe6c5de0c877847fd148f542b8a0

  • SHA1

    7941cff1add480406a713f4e519ece6c49381b8d

  • SHA256

    fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512

  • SHA512

    cec629c2bd309d52676021ca25dad2e0339132d42bcda9176f9a73c1e3cbf7ae8d9f8db19d354a4084571000fe8ccbe16a26bf17acfbf5bf64cd0fd6df531ff6

  • SSDEEP

    49152:7QzHt472DkJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHt+tIuoITsdZ

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

      fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512

    • Size

      2.0MB

    • MD5

      6b79fe6c5de0c877847fd148f542b8a0

    • SHA1

      7941cff1add480406a713f4e519ece6c49381b8d

    • SHA256

      fb3d99bdd9e4ee4ae94af25961e4195f7bd4348b16107949e658806298a56512

    • SHA512

      cec629c2bd309d52676021ca25dad2e0339132d42bcda9176f9a73c1e3cbf7ae8d9f8db19d354a4084571000fe8ccbe16a26bf17acfbf5bf64cd0fd6df531ff6

    • SSDEEP

      49152:7QzHt472DkJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHt+tIuoITsdZ

    • 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