General

  • Target

    61f877a8e697cd80f9c3afb8724ab8cba794b94dd6023cf15ffe199f99ea1eda

  • Size

    2.4MB

  • Sample

    240524-pd344aae52

  • MD5

    3c16d7724ef43013b4b6aa656f13647b

  • SHA1

    87d63a508a9f9d8e1ea50b69f159bf06fb8643cc

  • SHA256

    61f877a8e697cd80f9c3afb8724ab8cba794b94dd6023cf15ffe199f99ea1eda

  • SHA512

    a22b76b6607933e3a692b25740720328b467fc1920c67ee6e3825d3ae46d4ee5c550b5ae740ae80aebcb6078b94fecf7f8155761a78b339bb1d158922e7fef88

  • SSDEEP

    49152:jxIRJF1HL+VdX68kUmJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dmtIuoITsdZ

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

      61f877a8e697cd80f9c3afb8724ab8cba794b94dd6023cf15ffe199f99ea1eda

    • Size

      2.4MB

    • MD5

      3c16d7724ef43013b4b6aa656f13647b

    • SHA1

      87d63a508a9f9d8e1ea50b69f159bf06fb8643cc

    • SHA256

      61f877a8e697cd80f9c3afb8724ab8cba794b94dd6023cf15ffe199f99ea1eda

    • SHA512

      a22b76b6607933e3a692b25740720328b467fc1920c67ee6e3825d3ae46d4ee5c550b5ae740ae80aebcb6078b94fecf7f8155761a78b339bb1d158922e7fef88

    • SSDEEP

      49152:jxIRJF1HL+VdX68kUmJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dmtIuoITsdZ

    • 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