General

  • Target

    48bc1d427c46a8e213d03ce347162f3fd2076766ddff3e70bd52b95f967e8e49

  • Size

    412KB

  • Sample

    240617-fqq6mazclr

  • MD5

    199b3fac9ac583cee18d6967a14ad6f4

  • SHA1

    71875ea5dbd2ed7e16b34476e1f05fcbe164603d

  • SHA256

    48bc1d427c46a8e213d03ce347162f3fd2076766ddff3e70bd52b95f967e8e49

  • SHA512

    b00cd6e4fa3764c0a7a9a3c1f2648a49f6281979f7f574fa7639d721c11aa0e8fc2ab0f1d29070bee5f4db20f92bf78104bf0b05bfe6fde2db501e36816bb488

  • SSDEEP

    6144:z2DUGv8rrPDXLU7nUp57KPBOgssDeKBQhkldbUu+fVDF9w9fdtE/fEwqGS:z2xv8rjDT7cWsDVQhkldbEo9VYRS

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/memve4erin

https://steamcommunity.com/profiles/76561199699680841

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Targets

    • Target

      48bc1d427c46a8e213d03ce347162f3fd2076766ddff3e70bd52b95f967e8e49

    • Size

      412KB

    • MD5

      199b3fac9ac583cee18d6967a14ad6f4

    • SHA1

      71875ea5dbd2ed7e16b34476e1f05fcbe164603d

    • SHA256

      48bc1d427c46a8e213d03ce347162f3fd2076766ddff3e70bd52b95f967e8e49

    • SHA512

      b00cd6e4fa3764c0a7a9a3c1f2648a49f6281979f7f574fa7639d721c11aa0e8fc2ab0f1d29070bee5f4db20f92bf78104bf0b05bfe6fde2db501e36816bb488

    • SSDEEP

      6144:z2DUGv8rrPDXLU7nUp57KPBOgssDeKBQhkldbUu+fVDF9w9fdtE/fEwqGS:z2xv8rjDT7cWsDVQhkldbEo9VYRS

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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