Analysis

  • max time kernel
    153s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/10/2022, 13:09

General

  • Target

    b1ad7413493caacddbeec8001be9d41325340b94430af99edae6ae7eb9207087.exe

  • Size

    164KB

  • MD5

    907977f420aca488645146a880d1fd40

  • SHA1

    7ce9f174ee084b0b457e94bff82777fba3cd64c9

  • SHA256

    b1ad7413493caacddbeec8001be9d41325340b94430af99edae6ae7eb9207087

  • SHA512

    8a63004676f76696fbf83f149dd1a9be4302bf8b76c7ece570dce06b3378684c022bcea8ec48cb390d11727fd4d31bf5745ab309b3a0f5f35a3d79ac4d7c03f0

  • SSDEEP

    1536:1hl8hAkF+ltfShBSMhjLbQSqKgALMmbQTf8sP9yqPCzkxZlPuM688OqbKTYw:61WZSJ5yPFzP9dM88/Q

Malware Config

Signatures

  • Modifies security service 2 TTPs 1 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • UAC bypass 3 TTPs 3 IoCs
  • Windows security bypass 2 TTPs 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Sets file execution options in registry 2 TTPs 64 IoCs
  • UPX packed file 5 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies Internet Explorer settings 1 TTPs 10 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b1ad7413493caacddbeec8001be9d41325340b94430af99edae6ae7eb9207087.exe
    "C:\Users\Admin\AppData\Local\Temp\b1ad7413493caacddbeec8001be9d41325340b94430af99edae6ae7eb9207087.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4656
    • C:\Users\Admin\Admin1\winlogon.exe
      "C:\Users\Admin\Admin1\winlogon.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4976
      • C:\Windows\SysWOW64\svchost.exe
        0
        3⤵
        • Modifies security service
        • Modifies visibility of file extensions in Explorer
        • Modifies visiblity of hidden/system files in Explorer
        • UAC bypass
        • Windows security bypass
        • Drops file in Drivers directory
        • Sets file execution options in registry
        • Adds Run key to start application
        • Modifies Internet Explorer settings
        • Modifies Internet Explorer start page
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1312

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\Admin1\winlogon.exe

    Filesize

    164KB

    MD5

    907977f420aca488645146a880d1fd40

    SHA1

    7ce9f174ee084b0b457e94bff82777fba3cd64c9

    SHA256

    b1ad7413493caacddbeec8001be9d41325340b94430af99edae6ae7eb9207087

    SHA512

    8a63004676f76696fbf83f149dd1a9be4302bf8b76c7ece570dce06b3378684c022bcea8ec48cb390d11727fd4d31bf5745ab309b3a0f5f35a3d79ac4d7c03f0

  • C:\Users\Admin\Admin1\winlogon.exe

    Filesize

    164KB

    MD5

    907977f420aca488645146a880d1fd40

    SHA1

    7ce9f174ee084b0b457e94bff82777fba3cd64c9

    SHA256

    b1ad7413493caacddbeec8001be9d41325340b94430af99edae6ae7eb9207087

    SHA512

    8a63004676f76696fbf83f149dd1a9be4302bf8b76c7ece570dce06b3378684c022bcea8ec48cb390d11727fd4d31bf5745ab309b3a0f5f35a3d79ac4d7c03f0

  • memory/1312-143-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1312-145-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1312-146-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1312-149-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1312-150-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/4656-140-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/4656-134-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/4976-141-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/4976-151-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB