General

  • Target

    c4cd786ce9ce97600b53919180be0b2075c63fdbba035c62ea50b7c6cf3c2378

  • Size

    2.4MB

  • Sample

    240607-b1kpdage44

  • MD5

    fbc9ba0152e9e023a6b973c76ba9d861

  • SHA1

    f39a26fbf281ffe88c241dfff7cae300ea4860b1

  • SHA256

    c4cd786ce9ce97600b53919180be0b2075c63fdbba035c62ea50b7c6cf3c2378

  • SHA512

    5fece7a71d5fe27ce2c34ee3ea96ebbd675049dbc20ab1c4c3ecf755fcfd4d65b4278f0f17225a171a25d80332fbe43364e1eee85276b8558e59ec64fb1cf0ba

  • SSDEEP

    49152:wQc81KnB/a/hNT/dBYa8aesY3Ot4N7G/:wDta/hNT/dBn0etD/

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/ta904ek

https://steamcommunity.com/profiles/76561199695752269

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      c4cd786ce9ce97600b53919180be0b2075c63fdbba035c62ea50b7c6cf3c2378

    • Size

      2.4MB

    • MD5

      fbc9ba0152e9e023a6b973c76ba9d861

    • SHA1

      f39a26fbf281ffe88c241dfff7cae300ea4860b1

    • SHA256

      c4cd786ce9ce97600b53919180be0b2075c63fdbba035c62ea50b7c6cf3c2378

    • SHA512

      5fece7a71d5fe27ce2c34ee3ea96ebbd675049dbc20ab1c4c3ecf755fcfd4d65b4278f0f17225a171a25d80332fbe43364e1eee85276b8558e59ec64fb1cf0ba

    • SSDEEP

      49152:wQc81KnB/a/hNT/dBYa8aesY3Ot4N7G/:wDta/hNT/dBn0etD/

    • 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