General

  • Target

    b04cda6d730995cf1dfe3323e15f272cdc74a8ebfe2a5664b3da63692d225ddc

  • Size

    737KB

  • Sample

    250117-bfst9axkbz

  • MD5

    b735f3b3037d46ef6cc9b0b60dc404d6

  • SHA1

    e75141df6b5ccc75557054590addd4a9403f8222

  • SHA256

    b04cda6d730995cf1dfe3323e15f272cdc74a8ebfe2a5664b3da63692d225ddc

  • SHA512

    d1f4d82d7f55e3258d98c162eac092cdf21e938aa284f8aeae67e8a1b2ae0161c621bc7db53ec1b77e85d8d506ebfe526c968b42301d7337525d8fa9896b06ca

  • SSDEEP

    6144:sWusAIFB++velibxPyp/64wjOjn6cB3rZtT/Yq3v9Auky+4N1vbMw:sz7IFjvelQypyfy7z6u7+4DvbMw

Malware Config

Extracted

Credentials

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

Targets

    • Target

      b04cda6d730995cf1dfe3323e15f272cdc74a8ebfe2a5664b3da63692d225ddc

    • Size

      737KB

    • MD5

      b735f3b3037d46ef6cc9b0b60dc404d6

    • SHA1

      e75141df6b5ccc75557054590addd4a9403f8222

    • SHA256

      b04cda6d730995cf1dfe3323e15f272cdc74a8ebfe2a5664b3da63692d225ddc

    • SHA512

      d1f4d82d7f55e3258d98c162eac092cdf21e938aa284f8aeae67e8a1b2ae0161c621bc7db53ec1b77e85d8d506ebfe526c968b42301d7337525d8fa9896b06ca

    • SSDEEP

      6144:sWusAIFB++velibxPyp/64wjOjn6cB3rZtT/Yq3v9Auky+4N1vbMw:sz7IFjvelQypyfy7z6u7+4DvbMw

    • 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