General

  • Target

    aeeab5a8e121ee1c3f075068d53a94b8b769fcb92376454f28bbfee12812514f

  • Size

    16KB

  • Sample

    231207-b5n8csgfbj

  • MD5

    b5b884c10723261ef25cc10db807eb8b

  • SHA1

    5f89a7039838e52bb5e440d7b51b2635802dcc02

  • SHA256

    aeeab5a8e121ee1c3f075068d53a94b8b769fcb92376454f28bbfee12812514f

  • SHA512

    20ef9f8553e7cb2af0497c22b82084519dd7ad1ffb13100efc7900797aaa190ba1b3abb3e9a0ec6bad3eb8bd71bdb061f8d4c107565746948260e0967a4c9c7f

  • SSDEEP

    384:uyXrVqFWus8PL8wi4OEwH8TIbE91r2fRGJYJvimP49eb:ucrOJ5P3DOqnYJQEvTP49G

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      aeeab5a8e121ee1c3f075068d53a94b8b769fcb92376454f28bbfee12812514f

    • Size

      16KB

    • MD5

      b5b884c10723261ef25cc10db807eb8b

    • SHA1

      5f89a7039838e52bb5e440d7b51b2635802dcc02

    • SHA256

      aeeab5a8e121ee1c3f075068d53a94b8b769fcb92376454f28bbfee12812514f

    • SHA512

      20ef9f8553e7cb2af0497c22b82084519dd7ad1ffb13100efc7900797aaa190ba1b3abb3e9a0ec6bad3eb8bd71bdb061f8d4c107565746948260e0967a4c9c7f

    • SSDEEP

      384:uyXrVqFWus8PL8wi4OEwH8TIbE91r2fRGJYJvimP49eb:ucrOJ5P3DOqnYJQEvTP49G

    • AgentTesla

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Abuses OpenXML format to download file from external location

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks