General

  • Target

    925033701a31e03124eff2b732e38b42de641ecdb17cb15a1b549b741d89e97e

  • Size

    374KB

  • Sample

    220521-nrpm7aeaf2

  • MD5

    3ef8a35464679489b61af79db0d1d230

  • SHA1

    0c413511eb83e0e47ffe60ee5f1e7e43e4e1a64a

  • SHA256

    925033701a31e03124eff2b732e38b42de641ecdb17cb15a1b549b741d89e97e

  • SHA512

    e44d5d8fc6b5870871e591ac5c9c389360afc16834cf1c121bb6d55198d9f4cdd1d91276af2403871581afb52fb104e786b0ac51e7f2b0000601b206c9ca2ae8

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    don@opt0ray.com
  • Password:
    mmm777

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    don@opt0ray.com
  • Password:
    mmm777

Targets

    • Target

      inv.exe

    • Size

      465KB

    • MD5

      47816f080ceb4d4f74700e16a1119c63

    • SHA1

      26ef52d413be42a5fd038115a783c54af218ea01

    • SHA256

      248e331a82ad9163431cb93b8f896addf5a046306f35389270ce457e042dbd94

    • SHA512

      6f96254f53fc7ce8450ccc7fcdcd45eb087db06f5a1860498724428f405166c1702160ec771cefa32053004ac1d8ebe2af878194aafdff394e48774f94ab590d

    • AgentTesla

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

    • AgentTesla Payload

    • Drops file in Drivers directory

    • 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 Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks