General

  • Target

    23df744b2ff549a2d662dcac557136489790bb511e89b82bb2b792d1f7dfbf68

  • Size

    2.0MB

  • Sample

    240525-g1e2saha8v

  • MD5

    cd3b8700758297d023183983e14f0e35

  • SHA1

    d77cefef213ef2af0c0e808bb1f108a69e5b70e8

  • SHA256

    23df744b2ff549a2d662dcac557136489790bb511e89b82bb2b792d1f7dfbf68

  • SHA512

    853908c3d78fcc39a4bd388f2992f7b689cc537b354d6d363ff42bd177335e3dd961617ee593ced8bf80558718a59f69c678acfe31f4136798f111737bf58373

  • SSDEEP

    49152:s4K3x1vUCJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18CtIuoITsdZ

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

      23df744b2ff549a2d662dcac557136489790bb511e89b82bb2b792d1f7dfbf68

    • Size

      2.0MB

    • MD5

      cd3b8700758297d023183983e14f0e35

    • SHA1

      d77cefef213ef2af0c0e808bb1f108a69e5b70e8

    • SHA256

      23df744b2ff549a2d662dcac557136489790bb511e89b82bb2b792d1f7dfbf68

    • SHA512

      853908c3d78fcc39a4bd388f2992f7b689cc537b354d6d363ff42bd177335e3dd961617ee593ced8bf80558718a59f69c678acfe31f4136798f111737bf58373

    • SSDEEP

      49152:s4K3x1vUCJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18CtIuoITsdZ

    • 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