Analysis

  • max time kernel
    1s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/01/2024, 19:21

General

  • Target

    a511396442a36431fa575db4a1db79be.exe

  • Size

    512KB

  • MD5

    a511396442a36431fa575db4a1db79be

  • SHA1

    2559152c5fdd746f76c9335e1b4fafcb16657b6d

  • SHA256

    7daaabc1b929c83288bc103aa3b60d23df7e17d3616ec899027abf08cb7efce3

  • SHA512

    035461372a5393f04d4bdc500872fc09368e2d2ffb8eba26d59120038b516aeeab4a83f10a294fbd22b694e768d5730a5da21d0599439278e49054a72839f4be

  • SSDEEP

    6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj62:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5/

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 5 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 5 IoCs
  • Windows security modification 2 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 3 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 20 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 58 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a511396442a36431fa575db4a1db79be.exe
    "C:\Users\Admin\AppData\Local\Temp\a511396442a36431fa575db4a1db79be.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1912
    • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Windows\mydoc.rtf" /o ""
      2⤵
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:2056
    • C:\Windows\SysWOW64\vqssoglepddkl.exe
      vqssoglepddkl.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:5056
    • C:\Windows\SysWOW64\nnkerwzo.exe
      nnkerwzo.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2984
    • C:\Windows\SysWOW64\ockacaabryqpnuw.exe
      ockacaabryqpnuw.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4392
    • C:\Windows\SysWOW64\gqrvcvfvws.exe
      gqrvcvfvws.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2272
  • C:\Windows\SysWOW64\nnkerwzo.exe
    C:\Windows\system32\nnkerwzo.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2648

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\gqrvcvfvws.exe

          Filesize

          92KB

          MD5

          6662b185f19fbf697c56a25c92de7961

          SHA1

          0df0c0df0de3724258df2549c583e3c934aca726

          SHA256

          c11edb9e97848e20319fba876d9382c7193f68323eff1f7ed805bb04303bdc86

          SHA512

          c6e2cb83f68a63ca299dae843d2697d41dab8b565fb4005755b0d255b388779b6c1dad97375009c995f0a3d2e0acb4cc820090ca5dc24ee11e1a3de5b1a4921f

        • C:\Windows\SysWOW64\ockacaabryqpnuw.exe

          Filesize

          99KB

          MD5

          7fc6cf931da79ecd4267f22c6a1aefa8

          SHA1

          913682b9a75a4089cc18ec25b28e082916a6b314

          SHA256

          2672445b36639d26c7bcf277704d7f634ea7a6f4eac634027b98fb3f94062487

          SHA512

          272947751145ba29cbfecc6fe73cf5e20cf017c8c436a8af45198499e8b34c5f70215c3d5f21676a2a5de87616e85aa12b5cf0e263d57042e4221f7e12d81eaf

        • memory/1912-0-0x0000000000400000-0x0000000000496000-memory.dmp

          Filesize

          600KB

        • memory/2056-49-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-44-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-50-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-54-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-56-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-57-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-59-0x00007FFA267A0000-0x00007FFA267B0000-memory.dmp

          Filesize

          64KB

        • memory/2056-60-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-46-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-55-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-53-0x00007FFA267A0000-0x00007FFA267B0000-memory.dmp

          Filesize

          64KB

        • memory/2056-52-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-51-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-43-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-47-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-48-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-58-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-45-0x00007FFA28890000-0x00007FFA288A0000-memory.dmp

          Filesize

          64KB

        • memory/2056-42-0x00007FFA28890000-0x00007FFA288A0000-memory.dmp

          Filesize

          64KB

        • memory/2056-41-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-37-0x00007FFA28890000-0x00007FFA288A0000-memory.dmp

          Filesize

          64KB

        • memory/2056-36-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-40-0x00007FFA28890000-0x00007FFA288A0000-memory.dmp

          Filesize

          64KB

        • memory/2056-35-0x00007FFA28890000-0x00007FFA288A0000-memory.dmp

          Filesize

          64KB

        • memory/2056-109-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-110-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-111-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-137-0x00007FFA68810000-0x00007FFA68A05000-memory.dmp

          Filesize

          2.0MB

        • memory/2056-136-0x00007FFA28890000-0x00007FFA288A0000-memory.dmp

          Filesize

          64KB

        • memory/2056-135-0x00007FFA28890000-0x00007FFA288A0000-memory.dmp

          Filesize

          64KB

        • memory/2056-134-0x00007FFA28890000-0x00007FFA288A0000-memory.dmp

          Filesize

          64KB

        • memory/2056-133-0x00007FFA28890000-0x00007FFA288A0000-memory.dmp

          Filesize

          64KB