General

  • Target

    cancelled order.doc

  • Size

    29KB

  • Sample

    230413-m99kmscc8x

  • MD5

    868886bf11eb7785316e883965316d46

  • SHA1

    b8a6181ee08c3f7477a7032f75f93a8071d0a2d5

  • SHA256

    ef8ae5a2ff20ab491f2634ed620057e7729b2bdd50c433a2e1cb8f4563b00510

  • SHA512

    fe29e4028a5d87047cf684dfdfcbb05d089830424f758985440a2f218c6cf9fc12db392012bac0d0aeef775e9a6858f07b045fe88f8702b7c74ee868add8d6c8

  • SSDEEP

    768:OFx0XaIsnPRIa4fwJMuC8l6g79S5TimN7n9FA3HUde:Of0Xvx3EMeUg85Tiin9FA3HUM

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.valvulasthermovalve.cl
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    LILKOOLL14!!

Targets

    • Target

      cancelled order.doc

    • Size

      29KB

    • MD5

      868886bf11eb7785316e883965316d46

    • SHA1

      b8a6181ee08c3f7477a7032f75f93a8071d0a2d5

    • SHA256

      ef8ae5a2ff20ab491f2634ed620057e7729b2bdd50c433a2e1cb8f4563b00510

    • SHA512

      fe29e4028a5d87047cf684dfdfcbb05d089830424f758985440a2f218c6cf9fc12db392012bac0d0aeef775e9a6858f07b045fe88f8702b7c74ee868add8d6c8

    • SSDEEP

      768:OFx0XaIsnPRIa4fwJMuC8l6g79S5TimN7n9FA3HUde:Of0Xvx3EMeUg85Tiin9FA3HUM

    • 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.

    • Accesses Microsoft Outlook profiles

    • 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 v6

Tasks