General

  • Target

    65d33bde1b9e3d11e7b3ce0767fd22ec.bin

  • Size

    642KB

  • Sample

    240913-bqfbxawhqg

  • MD5

    d8f77ce22d435f9f423e72a7659e4117

  • SHA1

    4803393487d468aa0833e391c7f8ce3173664883

  • SHA256

    8314c08237812a03249735937db7b1b6b1a1c3135f38c52c4980e6205da3e5ff

  • SHA512

    58444debba9645cddefae37cafc1913450e1f11562e6ca7116ff7b69dff603b81dea843746ea67ceb022b097d72f05cdf447e5bfed3a6f0a71bb5bed4415eb7e

  • SSDEEP

    12288:9fRs4Dv9BdINZNYOJKaJDxk4NdO0DCnOsNKirJ2y0n:lRs4KNZNYO8aJ17NdO0OOn+o

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Password: )NYyffR0

Targets

    • Target

      8eadfc2a0f3dce9b786340417545bc64a10dbd32e8677bbcf61929df787d4055.exe

    • Size

      851KB

    • MD5

      65d33bde1b9e3d11e7b3ce0767fd22ec

    • SHA1

      bf2496621ae5c35c3ba4056af0290ba1104c7056

    • SHA256

      8eadfc2a0f3dce9b786340417545bc64a10dbd32e8677bbcf61929df787d4055

    • SHA512

      7b5ae1a98fbcf8196b9d8a4cd856e4bb7a8cfbc996ac9b792e8cfee2b670c76ab64ab7a478a7b142bdb03b86cacc803b984ebac302a095eff4f0cb10ff09a318

    • SSDEEP

      12288:0e2VXNGg3VBx6k/+Ac0ZXN07M8NHNOraQ5ZCKaGSTij9N/Uu49f2FSWuEz8/A1yp:0e2zsk55m7M8NH8RCAIu49O8jEA/G

    • AgentTesla

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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

    • 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 v15

Tasks