General

  • Target

    d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048

  • Size

    2.4MB

  • Sample

    240603-f5vscsec57

  • MD5

    e3ed1d1fc684a58bcb6b319b2660796b

  • SHA1

    efe295ada71c63daebeb83b64faa0e10df6e541b

  • SHA256

    d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048

  • SHA512

    c0de3f17fd64962e200cc61b4bf14ab6c19dd8fc5fd1d5a759d2e7d4bee0e3d20412de5f4bb768977dc37ae8161186a56dd38c732bbff6a7144098c9052fbbf8

  • SSDEEP

    49152:wQc81KnB/a/hNT/ddYa8aesY3Ot4N7G/:wDta/hNT/ddn0etD/

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/ta904ek

https://steamcommunity.com/profiles/76561199695752269

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048

    • Size

      2.4MB

    • MD5

      e3ed1d1fc684a58bcb6b319b2660796b

    • SHA1

      efe295ada71c63daebeb83b64faa0e10df6e541b

    • SHA256

      d7f71655dfc3e37930f5cd3f1b11e671b82fe6710575954597772ee67f972048

    • SHA512

      c0de3f17fd64962e200cc61b4bf14ab6c19dd8fc5fd1d5a759d2e7d4bee0e3d20412de5f4bb768977dc37ae8161186a56dd38c732bbff6a7144098c9052fbbf8

    • SSDEEP

      49152:wQc81KnB/a/hNT/ddYa8aesY3Ot4N7G/:wDta/hNT/ddn0etD/

    • 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