General

  • Target

    Payment Assistance.pdf''.rar

  • Size

    437KB

  • Sample

    210416-7kwpcynnza

  • MD5

    5a406cf89946512122b168b97b8f3fb0

  • SHA1

    c05ca87eaaa89b9f88f1ddc12f6ef53fe1686cae

  • SHA256

    8b2bd0a7daa254d08821f0dc8ab92776aa76c9d5f68bc25eeec053fa4ca030ba

  • SHA512

    2c0fb26d06dcd779245ff278f24247f245685f3b738a29b9b9f630e77aa0398e9f0eca39dcaad7bd7c2ef808427af14f3a1839fd78c5e48d42cb34ab24ef2edd

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.lallyautomobiles.net
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Welcome@2021

Targets

    • Target

      Payment Assistance.pdf''.exe

    • Size

      771KB

    • MD5

      603f42dcb85fbd19933316cf1b6bedd4

    • SHA1

      33c38e2625cb5f44fcc1c44beec75db09718ce10

    • SHA256

      276144fa4171733571ff6940ef10a3bb603028c99c51093d074f6cda0d65afda

    • SHA512

      14fe5a280a055355e2a11eda7fd1e36392a50632bd4779e9651a7f161dd6f4f10c2f150b977ed80a6bd88c542df0aec5a8c57193e9d80459b961f6343c0274d6

    • AgentTesla

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

    • AgentTesla Payload

    • Drops file in Drivers directory

    • 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.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks