Analysis

  • max time kernel
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/09/2026, 12:16

General

  • Target
    ransomware/WanaDecrypt0r.exe
  • Size 7.7MB
  • Sample260929-pffftazzc1
  • SHA256 37747ef98d4574a4fb8b87039526f4e6f6ff6e0c654eb9dcf13833e7e27a6149
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell and hide display window.

  • Loads dropped DLL 5 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ransomware\WanaDecrypt0r.exe
    "C:\Users\Admin\AppData\Local\Temp\ransomware\WanaDecrypt0r.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2212
    • C:\Users\Admin\AppData\Local\Temp\ransomware\WanaDecrypt0r.exe
      "C:\Users\Admin\AppData\Local\Temp\ransomware\WanaDecrypt0r.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3320
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell.exe -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File C:\Users\Admin\AppData\Local\Temp\WinUpdateCache\Run.ps1
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Enumerates connected drives
        • Sets desktop wallpaper using registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2476
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
          "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\ncwfywq0\ncwfywq0.cmdline"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:5216
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
            C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES2764.tmp" "c:\Users\Admin\AppData\Local\Temp\ncwfywq0\CSCDD4DF2915EBB4C63A1A434D536E4A94.TMP"
            5⤵
              PID:3828
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File "C:\Users\Admin\AppData\Local\Temp\WinUpdateCache\LockScreen.ps1"
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • Enumerates connected drives
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:5932

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 1KB
          • SHA256 8f115b2f85ada340d5c18856c6fabbc6ac1dc6fce9c7294d9d216a63fec333f3
          • MD5 SHA1 SHA512 TLSH

          RES2764.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\RES2764.tmp
          • Size 1KB
          • SHA256 839126d35a709f51988743996193648236e772d0c1c496cb24f9464bd906bc41
          • MD5 SHA1 SHA512 TLSH

          FileCryptography.psm1

          • Path C:\Users\Admin\AppData\Local\Temp\_MEI000008a42\FileCryptography.psm1
          • Size 14KB
          • SHA256 bb970dffceeedeac03b78e0500d19d23a2cf7a8d80362912ba216d0a5e8eb5db
          • MD5 SHA1 SHA512 SSDEEP TLSH

          LockScreen.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\_MEI000008a42\LockScreen.ps1
          • Size 4KB
          • SHA256 20b8d4a4415663decf6ab4f8955c7344d9273e5cf1bf0de411a5f61474789dae
          • MD5 SHA1 SHA512 SSDEEP TLSH

          RanSim.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\_MEI000008a42\RanSim.ps1
          • Size 2KB
          • SHA256 4de8dd007b04ec7e26ce3610e8633bbcadf6284332d9ab1d84b6c8b3fd8c50f7
          • MD5 SHA1 SHA512 TLSH

          Run.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\_MEI000008a42\Run.ps1
          • Size 5KB
          • SHA256 134b1372b1a1c7a4c165d80bad8fbbb0d34ffcfb7beeb6d9449eef01418f1898
          • MD5 SHA1 SHA512 SSDEEP TLSH

          VCRUNTIME140.dll

          • Path C:\Users\Admin\AppData\Local\Temp\_MEI000008a42\VCRUNTIME140.dll
          • Size 117KB
          • SHA256 052ad6a20d375957e82aa6a3c441ea548d89be0981516ca7eb306e063d5027f4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          _bz2.pyd

          • Path C:\Users\Admin\AppData\Local\Temp\_MEI000008a42\_bz2.pyd
          • Size 84KB
          • SHA256 65f610646d10d5babea080e060d244b546ec52c54012e5e937dc72dcc2e2e7bc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          _lzma.pyd

          • Path C:\Users\Admin\AppData\Local\Temp\_MEI000008a42\_lzma.pyd
          • Size 157KB
          • SHA256 e3deecc1f59a3b811c608861decd84de1e8df8bafd5e2b39188861318c5a38cf
          • MD5 SHA1 SHA512 SSDEEP TLSH

          base_library.zip

          • Path C:\Users\Admin\AppData\Local\Temp\_MEI000008a42\base_library.zip
          • Size 1.3MB
          • SHA256 9239f156b250cb337d7ead19b66df2b98df2ae2a5e7be7c7d77c6dd4405e144d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          python312.dll

          • Path C:\Users\Admin\AppData\Local\Temp\_MEI000008a42\python312.dll
          • Size 6.6MB
          • SHA256 9a0e3435aaa680d868150f87ab3e388ad2eebc22f87e036155c7b4eda8cd2120
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ucrtbase.dll

          • Path C:\Users\Admin\AppData\Local\Temp\_MEI000008a42\ucrtbase.dll
          • Size 1.1MB
          • SHA256 c04daeba7e7c4b711d33993ab4c51a2e087f98f4211aea0dcb3a216656ba0ab7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          __PSScriptPolicyTest_1owcf3up.kwp.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1owcf3up.kwp.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          ncwfywq0.dll

          • Path C:\Users\Admin\AppData\Local\Temp\ncwfywq0\ncwfywq0.dll
          • Size 3KB
          • SHA256 ba2a2cbb8e2cddb3f5703cfdf4e31afd5a985493035989b4b594354d6dd4c2ac
          • MD5 SHA1 SHA512 TLSH

          CSCDD4DF2915EBB4C63A1A434D536E4A94.TMP

          • Path \??\c:\Users\Admin\AppData\Local\Temp\ncwfywq0\CSCDD4DF2915EBB4C63A1A434D536E4A94.TMP
          • Size 652B
          • SHA256 c33978f342a564b17406a1cd7242714cb61e42cab9f34337c7cf5ac68116e7d2
          • MD5 SHA1 SHA512 TLSH

          ncwfywq0.0.cs

          • Path \??\c:\Users\Admin\AppData\Local\Temp\ncwfywq0\ncwfywq0.0.cs
          • Size 347B
          • SHA256 e81bfd35c30fa0f52ab9a07ac1edded6c6605ccecc1f88ba6a9cea0f540651c0
          • MD5 SHA1 SHA512 TLSH

          ncwfywq0.cmdline

          • Path \??\c:\Users\Admin\AppData\Local\Temp\ncwfywq0\ncwfywq0.cmdline
          • Size 369B
          • SHA256 55cec749a1d8b0dc2bf4f4920d78880f381c34a419773508ed0d9892278d1459
          • MD5 SHA1 SHA512 TLSH

          memory/2476-98-0x00000246D08C0000-0x00000246D08DE000-memory.dmp

          memory/2476-83-0x00007FFDB6F60000-0x00007FFDB7904000-memory.dmp

          memory/2476-90-0x00007FFDB6F60000-0x00007FFDB7904000-memory.dmp

          memory/2476-99-0x00007FFDB6F60000-0x00007FFDB7904000-memory.dmp

          memory/2476-92-0x00007FFDB6F60000-0x00007FFDB7904000-memory.dmp

          memory/2476-95-0x00000246D0870000-0x00000246D088E000-memory.dmp

          memory/2476-96-0x00000246D0B10000-0x00000246D0BC2000-memory.dmp

          memory/2476-97-0x00000246D0890000-0x00000246D089A000-memory.dmp

          memory/2476-89-0x00007FFDB6F60000-0x00007FFDB7904000-memory.dmp

          memory/2476-85-0x00007FFDB6F60000-0x00007FFDB7904000-memory.dmp

          memory/2476-91-0x00007FFDB6F60000-0x00007FFDB7904000-memory.dmp

          memory/2476-82-0x00007FFDB6F60000-0x00007FFDB7904000-memory.dmp

          memory/2476-121-0x00000246D08C0000-0x00000246D08C8000-memory.dmp

          memory/2476-79-0x00007FFDB6F60000-0x00007FFDB7904000-memory.dmp

          memory/2476-78-0x00000246B8200000-0x00000246B8222000-memory.dmp

          memory/2476-77-0x00007FFDB6F60000-0x00007FFDB7904000-memory.dmp

          memory/2476-123-0x00007FFDB6F60000-0x00007FFDB7904000-memory.dmp

          memory/2476-76-0x00007FFDB6F60000-0x00007FFDB7904000-memory.dmp

          memory/2476-75-0x00007FFDB70EF000-0x00007FFDB70F0000-memory.dmp