General

  • Target

    20b03b373584c02f2aed0aec90ce7549ff52a0d5bb0c921d1c2f49589cdc73a4

  • Size

    2.4MB

  • Sample

    240523-2y7n8scf2v

  • MD5

    7f5f0beddf806d6803f8661a436f64fb

  • SHA1

    5f8012facb0b2d084b7f537b9651c94a64e60af3

  • SHA256

    20b03b373584c02f2aed0aec90ce7549ff52a0d5bb0c921d1c2f49589cdc73a4

  • SHA512

    78df4fbfbb11a39f31100fec8fe0e5d7556b09927804217678fcd7c94138822867d7726b6fb635881faa98cba9adfaf72395815d91e1feb00991dfa492bccfce

  • 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

      20b03b373584c02f2aed0aec90ce7549ff52a0d5bb0c921d1c2f49589cdc73a4

    • Size

      2.4MB

    • MD5

      7f5f0beddf806d6803f8661a436f64fb

    • SHA1

      5f8012facb0b2d084b7f537b9651c94a64e60af3

    • SHA256

      20b03b373584c02f2aed0aec90ce7549ff52a0d5bb0c921d1c2f49589cdc73a4

    • SHA512

      78df4fbfbb11a39f31100fec8fe0e5d7556b09927804217678fcd7c94138822867d7726b6fb635881faa98cba9adfaf72395815d91e1feb00991dfa492bccfce

    • 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