General

  • Target

    3a66e87715918ab44acbd17d50ce96e3f0818c2e9fb87c133b25c8515fd035fd

  • Size

    2.0MB

  • Sample

    240522-yzyaeafa93

  • MD5

    c4da3e0445e672d9a5a4ce37d6b44bb7

  • SHA1

    6a4301a630e7d93d27248a82489a3ab8a54afb70

  • SHA256

    3a66e87715918ab44acbd17d50ce96e3f0818c2e9fb87c133b25c8515fd035fd

  • SHA512

    35e1e9b93bb574e7dee864fca74fea5144653b06b20de24d70abad5af54e384e929e08a3c02c6f8b6a2a836a3df1abb96ced195d4dee89d86be99f70643e6d44

  • SSDEEP

    49152:7QzHt472DcJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtatIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Targets

    • Target

      3a66e87715918ab44acbd17d50ce96e3f0818c2e9fb87c133b25c8515fd035fd

    • Size

      2.0MB

    • MD5

      c4da3e0445e672d9a5a4ce37d6b44bb7

    • SHA1

      6a4301a630e7d93d27248a82489a3ab8a54afb70

    • SHA256

      3a66e87715918ab44acbd17d50ce96e3f0818c2e9fb87c133b25c8515fd035fd

    • SHA512

      35e1e9b93bb574e7dee864fca74fea5144653b06b20de24d70abad5af54e384e929e08a3c02c6f8b6a2a836a3df1abb96ced195d4dee89d86be99f70643e6d44

    • SSDEEP

      49152:7QzHt472DcJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtatIuoITsdZ

    • 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