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General

  • Target

    DINVE237687289.doc

  • Size

    157KB

  • Sample

    240123-s1aylscce5

  • MD5

    384e74093fb8e4381996d07853ca4d85

  • SHA1

    7d40d31adbb8ed25b96a884b2e5c934704729af9

  • SHA256

    88df87d037fafe156cc56a5e6118968fcece7763e9d991338621f4095826135a

  • SHA512

    7a8d78c7810950001faaa163544486e45df72765d304a09551a552e7cc0ecdc81c3701fff5fedd0553676b27adfb0ae40b2ba8d98e087a3b01d60e60ee272a47

  • SSDEEP

    768:9wAbZSibMX9gRWjsK5mguqnnNi4yYHpTFsVLn0/:9wAlRLGnwEHXe0/

Malware Config

Extracted

Credentials

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

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      DINVE237687289.doc

    • Size

      157KB

    • MD5

      384e74093fb8e4381996d07853ca4d85

    • SHA1

      7d40d31adbb8ed25b96a884b2e5c934704729af9

    • SHA256

      88df87d037fafe156cc56a5e6118968fcece7763e9d991338621f4095826135a

    • SHA512

      7a8d78c7810950001faaa163544486e45df72765d304a09551a552e7cc0ecdc81c3701fff5fedd0553676b27adfb0ae40b2ba8d98e087a3b01d60e60ee272a47

    • SSDEEP

      768:9wAbZSibMX9gRWjsK5mguqnnNi4yYHpTFsVLn0/:9wAlRLGnwEHXe0/

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • 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 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.

    • 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