General

  • Target
    19623242f86476316add324df9105497.exe
  • Size 893KB
  • Sample220102-vs5jcshadr
  • SHA256 d9a8ff42d8a53247338920a5d7c8f2ecbb512d9e81334e68d1c54a6cc46c5351
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • oski

C2
  • destad.axfree.com

Targets

    • Target
      19623242f86476316add324df9105497.exe
    • Size 893KB
    • SHA256 d9a8ff42d8a53247338920a5d7c8f2ecbb512d9e81334e68d1c54a6cc46c5351
    • MD5 SHA1 SHA512
    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

    • Downloads MZ/PE file

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks