General

  • Target

    5ab8c35b9e4d8ec58a8f6a2f5383042a.exe

  • Size

    2.4MB

  • Sample

    240609-tejt3ach42

  • MD5

    5ab8c35b9e4d8ec58a8f6a2f5383042a

  • SHA1

    7a1d15fb3b9aff903d7c945c9f2b76e8b538e26a

  • SHA256

    4f442d5f511fe820b75a49169785dac48fce1a19285372b47c5e4ab62209df1a

  • SHA512

    598f024bcf11686c5aaeda6d56a7a4f67447ea7a82e8cc535c94c229ffba88d7ab2c879ce114f4647389e76890be34e1353a4a43f58a16427fc0bff8eae5b261

  • SSDEEP

    49152:MgMB1gmd/0wYxmj02wfNQJGSLrp9+Wlbz1jiAkBAbdUHrU:i1bWJfNqG4nZxji/BAbdS

Malware Config

Extracted

Family

stealc

rc4.plain

Targets

    • Target

      5ab8c35b9e4d8ec58a8f6a2f5383042a.exe

    • Size

      2.4MB

    • MD5

      5ab8c35b9e4d8ec58a8f6a2f5383042a

    • SHA1

      7a1d15fb3b9aff903d7c945c9f2b76e8b538e26a

    • SHA256

      4f442d5f511fe820b75a49169785dac48fce1a19285372b47c5e4ab62209df1a

    • SHA512

      598f024bcf11686c5aaeda6d56a7a4f67447ea7a82e8cc535c94c229ffba88d7ab2c879ce114f4647389e76890be34e1353a4a43f58a16427fc0bff8eae5b261

    • SSDEEP

      49152:MgMB1gmd/0wYxmj02wfNQJGSLrp9+Wlbz1jiAkBAbdUHrU:i1bWJfNqG4nZxji/BAbdS

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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