General

  • Target

    78d5fe9eee91a5de1d1356965ffc648514c7c541fffc723fc1b753468af2eb63

  • Size

    388KB

  • Sample

    220521-c7f57sfbb7

  • MD5

    f5c34d835f210d024964337a5d64d697

  • SHA1

    3aa52d2a396231add38655cf7c7d07a3dd04f9a5

  • SHA256

    78d5fe9eee91a5de1d1356965ffc648514c7c541fffc723fc1b753468af2eb63

  • SHA512

    f488324d8db7659c278de5c76a95991ea193159974d9e2c27c6904dab00b3ac2e684787b8a7594aee78cc93d2e2bfbc0034f3203f5d4b387095a282f7e37d982

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.hotel71.com.bd
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    9+^va&phP1v9

Targets

    • Target

      LEGAL ACTION ON YOUR COMPANY FOR LONG OVERDUE INVOICE.doc.exe

    • Size

      446KB

    • MD5

      6bdd9c15243bd5b8709b87b7ba10b3a9

    • SHA1

      780f690b92f29296254f00b9f1958c2359991ad2

    • SHA256

      2580575e95648d76aed0be387fbe6423ef72639b8aaa9e1ad84ebc5b74bcf7b5

    • SHA512

      46a0f1f8a1c6d6cfbea8c287cd9f06fb44e987f8c452a2e5f99da852d871de1552a25eb7d79c794c817e16c7917d3e39383046173699c1fcc07f53dec0ec5cdd

    • AgentTesla

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

    • CoreEntity .NET Packer

      A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

    • AgentTesla Payload

    • ReZer0 packer

      Detects ReZer0, a packer with multiple versions used in various campaigns.

    • Disables Task Manager via registry modification

    • Drops file in Drivers directory

    • Accesses Microsoft Outlook profiles

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks