General

  • Target

    e851fff7f8cecab296b8098d885fb35da2c8231d8fff172e09c4aeaff53b17ad

  • Size

    437KB

  • Sample

    220521-ccx58sdfd5

  • MD5

    76e303dc3f020430cd1050b44f3e6fc4

  • SHA1

    944a2df14fb74de0938485b37946ac52535fd3ec

  • SHA256

    e851fff7f8cecab296b8098d885fb35da2c8231d8fff172e09c4aeaff53b17ad

  • SHA512

    5e1fe338cb513bfc53c30a934ed37b6cc7d6ac182f041d095c83ab3d47eee196e4e5e41066c2de579082bd3539f7be69490325399b90e4a05469239ebe37c85b

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    password0077

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    password0077

Targets

    • Target

      PAK452431.exe

    • Size

      661KB

    • MD5

      1bbfcc115bf97ec1d010b3b9f1ad34b9

    • SHA1

      2e405d2142fb937bb8fcb3c71aa6f192e863d40c

    • SHA256

      e60131e245aac591c455594f208de438d18da96de8cd08c4990c973c7956c38f

    • SHA512

      7f69595b050cdb5f5f93078c0a843cbe3d7b8ff5af2be90b5927ff0098ea5bd86cf5948d3ac05ad4c8a6a23c69db3c9e4c352621fb48afb26b875bb73c63b513

    • 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.

    • Accesses Microsoft Outlook profiles

    • 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