General

  • Target

    121179dca3e3411f802e50191768ceef066126302148b938c92f35f5590869be

  • Size

    2.0MB

  • Sample

    240526-tn9rvada75

  • MD5

    bfeff83b6f9f9948026d6500064230e7

  • SHA1

    b5e1f33ff21de31543de97be6f607d9d790c861f

  • SHA256

    121179dca3e3411f802e50191768ceef066126302148b938c92f35f5590869be

  • SHA512

    0f2528c354ff2d8f25d6b10fef478320c8305760a0d3e5c424eae7e2ec045c909815ddfc2826688b52556f5e7cf4609faacade0769c56c92c34d311578a9ece8

  • SSDEEP

    49152:s4K3x1vUKJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18KtIuoITsdZ

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

      121179dca3e3411f802e50191768ceef066126302148b938c92f35f5590869be

    • Size

      2.0MB

    • MD5

      bfeff83b6f9f9948026d6500064230e7

    • SHA1

      b5e1f33ff21de31543de97be6f607d9d790c861f

    • SHA256

      121179dca3e3411f802e50191768ceef066126302148b938c92f35f5590869be

    • SHA512

      0f2528c354ff2d8f25d6b10fef478320c8305760a0d3e5c424eae7e2ec045c909815ddfc2826688b52556f5e7cf4609faacade0769c56c92c34d311578a9ece8

    • SSDEEP

      49152:s4K3x1vUKJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18KtIuoITsdZ

    • 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