General

  • Target

    QUOTE4K892388AC422.rar

  • Size

    585KB

  • Sample

    240903-xcyf8avdqc

  • MD5

    ee776980115e03a5ede8247b73fa3e9b

  • SHA1

    d5dfa5d0c7ad48f07485b3ac8f086da543c7506d

  • SHA256

    ed2996fcc68afdbadf26c4d9f595cfe1b5cbc91abc374730c877fa0edd101d28

  • SHA512

    f26c9cfb29fcc8528f2cfd3bc0586436105828e242a2192264b857e3bf5e5a2e2627dcbff1e51e4e3b3d7cd41410e0f62c47a7273d103a61ba8a592c5ca32766

  • SSDEEP

    12288:xW46fm2pNS6d24w8wKxSTYmk2+l/KEDQBePrKeD:afdk6d2Opmk2oKNBU

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      QUOTE-4K892388-A-C422.exe

    • Size

      613KB

    • MD5

      b08c3e1fb6c0cbdc42114b397e5ca857

    • SHA1

      d638ca5e9a20072887e6418186753327853f5369

    • SHA256

      269e25fc0e57a2a1cbb6e3f01936142b4c6e8807d7e33960e5e8baf38ef3b631

    • SHA512

      ec3fa21261715461fe1d510fe1eabf4e232923cc5f6cfe6c343155632a129e514df81f6b366bc755ff04b9b2eafea7e682f9b295bac3d4b28923e0e3de4f85ff

    • SSDEEP

      12288:lzjLf30WH0obqvYCHXzcjWwyuMTtZqe5rfCslgldVMLv:9jj0yGzHw1MOSCKgXV6

    • 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.

    • Accesses Microsoft Outlook profiles

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks