Analysis

  • max time kernel
    152s
  • 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
    24-11-2022 13:37

General

  • Target

    4b1eefe8c1d3d410cedbec6cddcd977db621603205756d4dd8f7fb5d6f292213.exe

  • Size

    328KB

  • MD5

    95c6972552be2a5ced9ebb3b2aecc327

  • SHA1

    a779d25631420973651ad3ac9dbb46805a244546

  • SHA256

    4b1eefe8c1d3d410cedbec6cddcd977db621603205756d4dd8f7fb5d6f292213

  • SHA512

    5cbd22c6aba41d4b3af51acb1d0458efed58c09bd8e29fe5819b818870d136558c95e9e162e304b99ba8849a53cc0f851bf447ee9400d2804196ff7ae8917d9f

  • SSDEEP

    3072:wvBdkm5RdXLMZIY94FPuWvAX260QuwNO2NIWjcyVbiWjnoQmAcpMIrbqIKz+Omzy:WLLMSWWcdZV9noQoC7oVQv9GLx9YIjY

Score
8/10

Malware Config

Signatures

  • Sets file execution options in registry 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Checks for any installed AV software in registry 1 TTPs 2 IoCs
  • Drops desktop.ini file(s) 1 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.

  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies registry class 6 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b1eefe8c1d3d410cedbec6cddcd977db621603205756d4dd8f7fb5d6f292213.exe
    "C:\Users\Admin\AppData\Local\Temp\4b1eefe8c1d3d410cedbec6cddcd977db621603205756d4dd8f7fb5d6f292213.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3916
    • C:\Users\Admin\AppData\Local\Temp\4b1eefe8c1d3d410cedbec6cddcd977db621603205756d4dd8f7fb5d6f292213.exe
      "C:\Users\Admin\AppData\Local\Temp\4b1eefe8c1d3d410cedbec6cddcd977db621603205756d4dd8f7fb5d6f292213.exe"
      2⤵
      • Sets file execution options in registry
      • Checks computer location settings
      • Checks for any installed AV software in registry
      • Drops desktop.ini file(s)
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious behavior: MapViewOfSection
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4264
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /CREATE /SC ONLOGON /TN "Windows Update Check - 0x5E7F07BB" /TR "C:\ProgramData\winkeyy\lgouvrdob.exe" /RL HIGHEST
        3⤵
        • Creates scheduled task(s)
        PID:4164
      • C:\Windows\SysWOW64\WerFault.exe
        "C:\Windows\SysWOW64\WerFault.exe"
        3⤵
          PID:4928

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4164-141-0x0000000000000000-mapping.dmp

    • memory/4264-139-0x0000000000710000-0x000000000075B000-memory.dmp

      Filesize

      300KB

    • memory/4264-135-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/4264-134-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/4264-137-0x0000000000710000-0x000000000075B000-memory.dmp

      Filesize

      300KB

    • memory/4264-138-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/4264-132-0x0000000000000000-mapping.dmp

    • memory/4264-140-0x0000000002180000-0x000000000218B000-memory.dmp

      Filesize

      44KB

    • memory/4264-133-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/4264-143-0x0000000000710000-0x000000000075B000-memory.dmp

      Filesize

      300KB

    • memory/4928-142-0x0000000000000000-mapping.dmp

    • memory/4928-144-0x00000000008A0000-0x000000000091B000-memory.dmp

      Filesize

      492KB

    • memory/4928-145-0x0000000000760000-0x0000000000800000-memory.dmp

      Filesize

      640KB

    • memory/4928-146-0x0000000000760000-0x0000000000800000-memory.dmp

      Filesize

      640KB