General

  • Target

    8d4dbceb55758bb6bc3db7c3342f879415bc1caa596a5e7d9260b52ecb950ea8

  • Size

    2.0MB

  • Sample

    240526-a6pd3shc72

  • MD5

    4933a5d15d63d310ec7ce882256dada3

  • SHA1

    d71f6ea17495588c719892f61e9b3706e6ecf009

  • SHA256

    8d4dbceb55758bb6bc3db7c3342f879415bc1caa596a5e7d9260b52ecb950ea8

  • SHA512

    44d574ff63e63fbd9a7042863a74d0deeac7b038d8ffc3016a46e466f8dc72d54697a8e4a5fc72608b4ddf07a92bac1770f09fecd1759e004e6a524061774086

  • SSDEEP

    49152:s4K3x1vUaJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18atIuoITsdZ

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

      8d4dbceb55758bb6bc3db7c3342f879415bc1caa596a5e7d9260b52ecb950ea8

    • Size

      2.0MB

    • MD5

      4933a5d15d63d310ec7ce882256dada3

    • SHA1

      d71f6ea17495588c719892f61e9b3706e6ecf009

    • SHA256

      8d4dbceb55758bb6bc3db7c3342f879415bc1caa596a5e7d9260b52ecb950ea8

    • SHA512

      44d574ff63e63fbd9a7042863a74d0deeac7b038d8ffc3016a46e466f8dc72d54697a8e4a5fc72608b4ddf07a92bac1770f09fecd1759e004e6a524061774086

    • SSDEEP

      49152:s4K3x1vUaJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18atIuoITsdZ

    • 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