General

  • Target

    ab4da6a6eb17001b2427284b5007cd62a6cf724ba1546a13420a40fb4ecde06d

  • Size

    553KB

  • Sample

    220521-nhlj6sghcq

  • MD5

    0d9af17e7af59794c369d1c480a4dc1d

  • SHA1

    3d74c23fecabe7389aedd61b07f0ab23cf11ecdd

  • SHA256

    ab4da6a6eb17001b2427284b5007cd62a6cf724ba1546a13420a40fb4ecde06d

  • SHA512

    a55bec9c2e0e5ea0e64b8366c012db07a53b15facbb857786548ca9ef2631a6279d76f537c834df7ce0b7da3d87db6b65e936f112e767b9eaa12243a0cea9cc2

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    333link00win0303

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    333link00win0303

Targets

    • Target

      ab4da6a6eb17001b2427284b5007cd62a6cf724ba1546a13420a40fb4ecde06d

    • Size

      553KB

    • MD5

      0d9af17e7af59794c369d1c480a4dc1d

    • SHA1

      3d74c23fecabe7389aedd61b07f0ab23cf11ecdd

    • SHA256

      ab4da6a6eb17001b2427284b5007cd62a6cf724ba1546a13420a40fb4ecde06d

    • SHA512

      a55bec9c2e0e5ea0e64b8366c012db07a53b15facbb857786548ca9ef2631a6279d76f537c834df7ce0b7da3d87db6b65e936f112e767b9eaa12243a0cea9cc2

    • 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.

    • Checks computer location settings

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

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks