General

  • Target

    gunzipped

  • Size

    565KB

  • Sample

    200716-lfya7q7sxe

  • MD5

    d1c3278d317750fbd5a9dcae7de2e27c

  • SHA1

    b7815150d40c9caaed7ff338b3f2864b3ade1a2f

  • SHA256

    1585d935d47ff234d4b9a71e4f30d0731677d06f430894496c58153011bb90b7

  • SHA512

    c1b57af1776c54dd24c1fa8009bef08a79e6e82112985685d6a1fa4a1988783d1ab450c4ba1e13e25ea55d5cc7298b056a05ed7520ea5ed57058b9b47bb78c34

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.elittacop.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @eaSYuc8

Targets

    • Target

      gunzipped

    • Size

      565KB

    • MD5

      d1c3278d317750fbd5a9dcae7de2e27c

    • SHA1

      b7815150d40c9caaed7ff338b3f2864b3ade1a2f

    • SHA256

      1585d935d47ff234d4b9a71e4f30d0731677d06f430894496c58153011bb90b7

    • SHA512

      c1b57af1776c54dd24c1fa8009bef08a79e6e82112985685d6a1fa4a1988783d1ab450c4ba1e13e25ea55d5cc7298b056a05ed7520ea5ed57058b9b47bb78c34

    • AgentTesla

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

    • AgentTesla Payload

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks