General

  • Target

    25ef9e300c603ac38401bcdc9154024474318a0a97201d618badc995ddeef5df

  • Size

    637KB

  • Sample

    250117-bxkj7sxpbx

  • MD5

    0c5c673b94290adf7458e1e690d01cc9

  • SHA1

    2f5df3a33e2c7f304e01d1d8bad98e8b86aa7f16

  • SHA256

    25ef9e300c603ac38401bcdc9154024474318a0a97201d618badc995ddeef5df

  • SHA512

    2a75442c0f32b8249c0a5fcaa326be8fa077c2e958c163a295d9f6e84a944d7489c05750417fd80df67a13833f60830cd016fe7ab47840e05b8137d5d936ef96

  • SSDEEP

    6144:KWusAIFB++velibxPyp/64wjOjn6cB3rZtT/Yq3v9Auky+4N137Am/v1:Kz7IFjvelQypyfy7z6u7+4D37Am/v1

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Boy12345#

Targets

    • Target

      25ef9e300c603ac38401bcdc9154024474318a0a97201d618badc995ddeef5df

    • Size

      637KB

    • MD5

      0c5c673b94290adf7458e1e690d01cc9

    • SHA1

      2f5df3a33e2c7f304e01d1d8bad98e8b86aa7f16

    • SHA256

      25ef9e300c603ac38401bcdc9154024474318a0a97201d618badc995ddeef5df

    • SHA512

      2a75442c0f32b8249c0a5fcaa326be8fa077c2e958c163a295d9f6e84a944d7489c05750417fd80df67a13833f60830cd016fe7ab47840e05b8137d5d936ef96

    • SSDEEP

      6144:KWusAIFB++velibxPyp/64wjOjn6cB3rZtT/Yq3v9Auky+4N137Am/v1:Kz7IFjvelQypyfy7z6u7+4D37Am/v1

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks