General

  • Target

    46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d

  • Size

    2.0MB

  • Sample

    240525-hepjrshf28

  • MD5

    e33d76dd65fc834c52cefb8c8ffb7b3e

  • SHA1

    bd462de9c239bf87104c8f1390d3e8930bf944ad

  • SHA256

    46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d

  • SHA512

    fe7a1f843eaf95b12a4c43ff30b4e5f4e4e211ca3712fb7498992b210f94b251bb51989dccc92a46d91a7f21515dc02d71d2735e08d92e7f1798776b444c45c9

  • SSDEEP

    49152:s4K3x1vUWJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18WtIuoITsdZ

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

      46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d

    • Size

      2.0MB

    • MD5

      e33d76dd65fc834c52cefb8c8ffb7b3e

    • SHA1

      bd462de9c239bf87104c8f1390d3e8930bf944ad

    • SHA256

      46cc658cacf28dbeddcc75ffb69862115052fcf4b0d4d2cf2498165e8372741d

    • SHA512

      fe7a1f843eaf95b12a4c43ff30b4e5f4e4e211ca3712fb7498992b210f94b251bb51989dccc92a46d91a7f21515dc02d71d2735e08d92e7f1798776b444c45c9

    • SSDEEP

      49152:s4K3x1vUWJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18WtIuoITsdZ

    • 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