General

  • Target

    dfc414625447e5a397435496db435ae03eb57291b70da56e48eda3598fea565a

  • Size

    1.9MB

  • Sample

    240527-s1bvxaab49

  • MD5

    c8f186278d6d4b13b0c0aa8fe4cf1463

  • SHA1

    e7e1aee8279d6a8d2fbc1c184b801bbdd779c8af

  • SHA256

    dfc414625447e5a397435496db435ae03eb57291b70da56e48eda3598fea565a

  • SHA512

    76029c1237aa0d0658123969bbe39b7916fa0c556a09c22deeb468b7edd5e157a988b0524f8cb81df0306ce16e64901be73ebbe7907dd6e65b838de06df319d8

  • SSDEEP

    49152:CdKfTn6v+JtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTndtIuoITsdZ

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

      dfc414625447e5a397435496db435ae03eb57291b70da56e48eda3598fea565a

    • Size

      1.9MB

    • MD5

      c8f186278d6d4b13b0c0aa8fe4cf1463

    • SHA1

      e7e1aee8279d6a8d2fbc1c184b801bbdd779c8af

    • SHA256

      dfc414625447e5a397435496db435ae03eb57291b70da56e48eda3598fea565a

    • SHA512

      76029c1237aa0d0658123969bbe39b7916fa0c556a09c22deeb468b7edd5e157a988b0524f8cb81df0306ce16e64901be73ebbe7907dd6e65b838de06df319d8

    • SSDEEP

      49152:CdKfTn6v+JtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTndtIuoITsdZ

    • 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