General

  • Target

    utorrent_installer.exe

  • Size

    1.8MB

  • Sample

    241014-hkbvvs1fjc

  • MD5

    32710bfba1858421cbf383e6f5c1ad8d

  • SHA1

    313d79259c5936b8705d0fda24ff3cb59758c36b

  • SHA256

    cb0abb633f628eeac47bec9379d698e08b4f281965277703d77fcb548b022496

  • SHA512

    66d9316854f39cafd650d16e6ad02d3eb30e9f9aede455c91d369e94e8db6251e9997f4261dfc7f8f04b0778f6c37e3924b8bdb22e326f42c28808eda71326ef

  • SSDEEP

    24576:uawwKusHwEwSDMnsQMJU/628S04FSq2FKfUbpW7/tumQ1wBRR:OwREDDMkU/6tS0QpYWVumQ1wvR

Malware Config

Targets

    • Target

      utorrent_installer.exe

    • Size

      1.8MB

    • MD5

      32710bfba1858421cbf383e6f5c1ad8d

    • SHA1

      313d79259c5936b8705d0fda24ff3cb59758c36b

    • SHA256

      cb0abb633f628eeac47bec9379d698e08b4f281965277703d77fcb548b022496

    • SHA512

      66d9316854f39cafd650d16e6ad02d3eb30e9f9aede455c91d369e94e8db6251e9997f4261dfc7f8f04b0778f6c37e3924b8bdb22e326f42c28808eda71326ef

    • SSDEEP

      24576:uawwKusHwEwSDMnsQMJU/628S04FSq2FKfUbpW7/tumQ1wBRR:OwREDDMkU/6tS0QpYWVumQ1wvR

    • Cobalt Strike reflective loader

      Detects the reflective loader used by Cobalt Strike.

    • Cobaltstrike

      Detected malicious payload which is part of Cobaltstrike.

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Drops file in Drivers directory

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • Downloads MZ/PE file

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Event Triggered Execution: Image File Execution Options Injection

    • Modifies powershell logging option

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Checks computer location settings

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

    • Drops file in System32 directory

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks