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General

  • Target

    88c44aaed93b06d47fa8fe986fa0cd5e16f55e4858e17c101ae57bbacc8beeaf

  • Size

    2.4MB

  • Sample

    240601-b8fqdsde9t

  • MD5

    260da841708efb8904a7abf5f59bd301

  • SHA1

    70c0e33d9ee31d3ee41f558e8eef5c9c22174dd6

  • SHA256

    88c44aaed93b06d47fa8fe986fa0cd5e16f55e4858e17c101ae57bbacc8beeaf

  • SHA512

    cfede6ef85bdf1856201e39a241d2ec7de30a2b4a67df168bb2c9c76b6fc4c2f57dca383b9587144f5aafe850e26151a7a63c2a3c2c8fce16c5b5dec35fb66cb

  • SSDEEP

    49152:jxIRJF1HL+VdX68kUqJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dqtIuoITsdZ

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

      88c44aaed93b06d47fa8fe986fa0cd5e16f55e4858e17c101ae57bbacc8beeaf

    • Size

      2.4MB

    • MD5

      260da841708efb8904a7abf5f59bd301

    • SHA1

      70c0e33d9ee31d3ee41f558e8eef5c9c22174dd6

    • SHA256

      88c44aaed93b06d47fa8fe986fa0cd5e16f55e4858e17c101ae57bbacc8beeaf

    • SHA512

      cfede6ef85bdf1856201e39a241d2ec7de30a2b4a67df168bb2c9c76b6fc4c2f57dca383b9587144f5aafe850e26151a7a63c2a3c2c8fce16c5b5dec35fb66cb

    • SSDEEP

      49152:jxIRJF1HL+VdX68kUqJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dqtIuoITsdZ

    • 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