General

  • Target

    ca9705b69a492e5775f3a5131cbce6c442230f7572c21a23324b983819166154

  • Size

    399KB

  • Sample

    220521-cktg1shagj

  • MD5

    cdda222e8b2ed02b2a08889b4c1990cb

  • SHA1

    2bc53766e453bd3b47647a6061c8d0ff518b2cbb

  • SHA256

    ca9705b69a492e5775f3a5131cbce6c442230f7572c21a23324b983819166154

  • SHA512

    a3080d46b5429fb30ce2616a8feb273f24c3e4fd1ae1a747a3eac1659f6e1920e9e9effeee1c66637a1e4fa43a3b31b3abc843087cac1bc97603b553854d55c4

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.microtechlab.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    pune@123

Targets

    • Target

      SIGNED AND STAMPED INVOICE.exe

    • Size

      457KB

    • MD5

      8c7516016e1bba2fe0e81b1792d9261e

    • SHA1

      7d4851bad01bb5043d56ea2fb480b952cb087b84

    • SHA256

      0b2ade3b609fe52eb27078440fe30c4983138af0a04bda84e92df8830338c9b1

    • SHA512

      5f36c3f281f8ed5a22d6522623cef0839aebd2b6bebbbdeee068364827d11063d42656719309782843f6641687f1cfefd35b0d8d9fc03fb58a8f7b5360ada92c

    • AgentTesla

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

    • 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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks