General

  • Target

    b1986c8278032b29898b10b350340891c3282f7e2662f97f5677994478497a18

  • Size

    2.5MB

  • Sample

    240530-3c47naeh36

  • MD5

    0b614966d35a836d2ef5cec7504455ef

  • SHA1

    b535567d5e9a33a19045bdc8ca4bce9aeaccd840

  • SHA256

    b1986c8278032b29898b10b350340891c3282f7e2662f97f5677994478497a18

  • SHA512

    f1c1569fa1c2aff118beb18370d72209109fbce7249ecc15262a9728b38eee7a06cd8609b0b5f8a80c64cf2dd269f581d3131e172eea40f4cc6d63b84837dad8

  • SSDEEP

    49152:+BX5/0mLBI1JVbJtTF+TxMoxc1TU+j+dAzGRX+:+BX5/0mAFtIuoITsdZ

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

      b1986c8278032b29898b10b350340891c3282f7e2662f97f5677994478497a18

    • Size

      2.5MB

    • MD5

      0b614966d35a836d2ef5cec7504455ef

    • SHA1

      b535567d5e9a33a19045bdc8ca4bce9aeaccd840

    • SHA256

      b1986c8278032b29898b10b350340891c3282f7e2662f97f5677994478497a18

    • SHA512

      f1c1569fa1c2aff118beb18370d72209109fbce7249ecc15262a9728b38eee7a06cd8609b0b5f8a80c64cf2dd269f581d3131e172eea40f4cc6d63b84837dad8

    • SSDEEP

      49152:+BX5/0mLBI1JVbJtTF+TxMoxc1TU+j+dAzGRX+:+BX5/0mAFtIuoITsdZ

    • 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

    • Loads dropped DLL

    • 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