General

  • Target

    P.O #CSCL REF 1198.exe

  • Size

    618KB

  • Sample

    230615-bc75rsec31

  • MD5

    488c6ae6e4a3ad9aa99442fe0000cb75

  • SHA1

    1232767b8ff9f2cf75d2f332625d644e55088c28

  • SHA256

    cecd0cf9c4fc70ac66d79284d5a4b44da73ba58f23de44a2a00d028ce46facc9

  • SHA512

    87acc5e136a59d1b413a854a22c3b677a2c0462550b99b1f0ee0706df1667f859dfcbd64587b90cc28f69517a86c782708123a605500f24b7be4e2d47871d9d6

  • SSDEEP

    12288:X+n9snBbMUjEtsiD2+/SFPaNc68l35O5K5hAsBzpn77ngUiN4J+Ts:7BAUIOiHSFADBRsLn7MP4J+

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      P.O #CSCL REF 1198.exe

    • Size

      618KB

    • MD5

      488c6ae6e4a3ad9aa99442fe0000cb75

    • SHA1

      1232767b8ff9f2cf75d2f332625d644e55088c28

    • SHA256

      cecd0cf9c4fc70ac66d79284d5a4b44da73ba58f23de44a2a00d028ce46facc9

    • SHA512

      87acc5e136a59d1b413a854a22c3b677a2c0462550b99b1f0ee0706df1667f859dfcbd64587b90cc28f69517a86c782708123a605500f24b7be4e2d47871d9d6

    • SSDEEP

      12288:X+n9snBbMUjEtsiD2+/SFPaNc68l35O5K5hAsBzpn77ngUiN4J+Ts:7BAUIOiHSFADBRsLn7MP4J+

    • AgentTesla

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

    • 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

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks