General

  • Target

    19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac

  • Size

    2.0MB

  • Sample

    240525-fp5ydsfd46

  • MD5

    d172f4efeb2bbe525ace5b59a821c9ed

  • SHA1

    ac38dbbb9c9fb383dab5eb90991d5edb45131caa

  • SHA256

    19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac

  • SHA512

    98dda633c63a573fdb6d2988009ddee6a6c39893df53f70380dd1a9ad886d99ae6cefc485b4703c8bec6fdd1281dce91de772e7313303df678b7894f7d537919

  • SSDEEP

    49152:s4K3x1vUKJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18KtIuoITsdZ

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

      19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac

    • Size

      2.0MB

    • MD5

      d172f4efeb2bbe525ace5b59a821c9ed

    • SHA1

      ac38dbbb9c9fb383dab5eb90991d5edb45131caa

    • SHA256

      19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac

    • SHA512

      98dda633c63a573fdb6d2988009ddee6a6c39893df53f70380dd1a9ad886d99ae6cefc485b4703c8bec6fdd1281dce91de772e7313303df678b7894f7d537919

    • SSDEEP

      49152:s4K3x1vUKJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18KtIuoITsdZ

    • 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