General

  • Target

    pivot_v5-2.exe

  • Size

    660KB

  • Sample

    241016-3rmwxstbrp

  • MD5

    f577fc68521d8ca399edd72ac913255d

  • SHA1

    8ff05351f4d8f3c4c80ed4985590e8ab1b989ea1

  • SHA256

    ae9e4974652dc907c017d94d511f1c4cbab72b8c440c052f38acac86279eb509

  • SHA512

    ce2497db91582a1d21093e1e08fd33bb91d7f93081045e716cc46c2b4b24f65ec4dbe8ce7149109c4a713b55a13706cfda967fdbd466d3c1c00024f4761f0e38

  • SSDEEP

    12288:zymCv84Lnka4eec2ZZEhl3qgi4JpXBLUbBinP7:zIv84Lnk5LEhl3qZs1P7

Malware Config

Targets

    • Target

      pivot_v5-2.exe

    • Size

      660KB

    • MD5

      f577fc68521d8ca399edd72ac913255d

    • SHA1

      8ff05351f4d8f3c4c80ed4985590e8ab1b989ea1

    • SHA256

      ae9e4974652dc907c017d94d511f1c4cbab72b8c440c052f38acac86279eb509

    • SHA512

      ce2497db91582a1d21093e1e08fd33bb91d7f93081045e716cc46c2b4b24f65ec4dbe8ce7149109c4a713b55a13706cfda967fdbd466d3c1c00024f4761f0e38

    • SSDEEP

      12288:zymCv84Lnka4eec2ZZEhl3qgi4JpXBLUbBinP7:zIv84Lnk5LEhl3qZs1P7

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Sets service image path in registry

    • Uses Session Manager for persistence

      Creates Session Manager registry key to run executable early in system boot.

    • 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

    • Impair Defenses: Safe Mode Boot

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Windows security modification

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • Checks installed software on the system

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks