General

  • Target

    Bloxstrap.exe

  • Size

    10.8MB

  • Sample

    241231-tclkwazncp

  • MD5

    05fe4ab617fb8a0e6df903e14b3312c9

  • SHA1

    04500479b9e6cdfbaf431634cfbfd496214c80ca

  • SHA256

    b4e27af0caf72026adc98fa65d34d5fe22882b2c3b36291f39fb2c69b3183efc

  • SHA512

    acff0e95ba628ed724ad331b1e5701f5cef343cb8ee5aa44aff0c5907453abaca68b874c7275a61d835d982ac18e0a1ffafa9289c7e72b9cc8b79c564b46c3da

  • SSDEEP

    98304:sbDOHTscod5DBasbk1mvGWD3vOYoHwfLk3vSmaR0+Mc4AN0edaAHDfysrTlW:sbDascFsbk1mvG6ObAbN0l

Malware Config

Targets

    • Target

      Bloxstrap.exe

    • Size

      10.8MB

    • MD5

      05fe4ab617fb8a0e6df903e14b3312c9

    • SHA1

      04500479b9e6cdfbaf431634cfbfd496214c80ca

    • SHA256

      b4e27af0caf72026adc98fa65d34d5fe22882b2c3b36291f39fb2c69b3183efc

    • SHA512

      acff0e95ba628ed724ad331b1e5701f5cef343cb8ee5aa44aff0c5907453abaca68b874c7275a61d835d982ac18e0a1ffafa9289c7e72b9cc8b79c564b46c3da

    • SSDEEP

      98304:sbDOHTscod5DBasbk1mvGWD3vOYoHwfLk3vSmaR0+Mc4AN0edaAHDfysrTlW:sbDascFsbk1mvG6ObAbN0l

    • Downloads MZ/PE file

    • Event Triggered Execution: Image File Execution Options Injection

    • Checks computer location settings

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

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks system information in the registry

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

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks