General

  • Target

    533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095

  • Size

    1.9MB

  • Sample

    240527-md891ahc38

  • MD5

    42995a48b6a9c41e9e7c60f53579299c

  • SHA1

    aff381aa725aebe5efaf695f739aae356f8fb35d

  • SHA256

    533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095

  • SHA512

    2d52697ed1ca7ed1f15bcc23d6e75ec7689ad40b0bba5123fadc9550b1867110b086219d5685fa1dc2b56ec854728b0ebd6f7c755cf68794a8602b55ad49c2de

  • SSDEEP

    49152:CdKfTn6vCJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTn5tIuoITsdZ

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

      533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095

    • Size

      1.9MB

    • MD5

      42995a48b6a9c41e9e7c60f53579299c

    • SHA1

      aff381aa725aebe5efaf695f739aae356f8fb35d

    • SHA256

      533c43c67e23b6fae770d0dde07adacf76f224b4f75ff1d166b664aed5b7d095

    • SHA512

      2d52697ed1ca7ed1f15bcc23d6e75ec7689ad40b0bba5123fadc9550b1867110b086219d5685fa1dc2b56ec854728b0ebd6f7c755cf68794a8602b55ad49c2de

    • SSDEEP

      49152:CdKfTn6vCJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTn5tIuoITsdZ

    • 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