| File name: | ryuk.exe |
| Full analysis: | https://app.any.run/tasks/6545b3a6-1695-42e2-9100-1fbfaaeb8125 |
| Verdict: | Malicious activity |
| Threats: | Ransomware is a type of malicious software that locks users out of their system or data using different methods to force them to pay a ransom. Most often, such programs encrypt files on an infected machine and demand a fee to be paid in exchange for the decryption key. Additionally, such programs can be used to steal sensitive information from the compromised computer and even conduct DDoS attacks against affected organizations to pressure them into paying. |
| Analysis date: | June 21, 2025, 21:30:51 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32+ executable (console) x86-64, for MS Windows, 7 sections |
| MD5: | A57E1E6FE1C98D2E75799A46E9EB5797 |
| SHA1: | 7878E7042C355546C118A38B90D8F7221F74D8A4 |
| SHA256: | 8C983FC99712412B33C356E0FBBA3E58CA1CA0501537EA11C81CBA0198442ABE |
| SSDEEP: | 24576:pNq59rBSJKv8vm1LGkfdv59gjsoqJT6QlLAM0xAMd6YTxkc:puLGkfdv59gjsoqJT6QlLAM0xAMd6YTD |
| .exe | | | Generic Win/DOS Executable (50) |
|---|---|---|
| .exe | | | DOS Executable Generic (49.9) |
| MachineType: | AMD AMD64 |
|---|---|
| TimeStamp: | 2022:11:09 18:02:53+00:00 |
| ImageFileCharacteristics: | Executable, Large address aware |
| PEType: | PE32+ |
| LinkerVersion: | 14.32 |
| CodeSize: | 622592 |
| InitializedDataSize: | 295424 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x623b0 |
| OSVersion: | 6 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows command line |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 304 | C:\WINDOWS\system32\cmd.exe /c attrib +h +s "%appdata%\Microsoft\Windows\Start Menu\Programs\Startup\ryuk.exe" | C:\Windows\System32\cmd.exe | — | ryuk.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 304 | reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLinkedConnections /t REG_DWORD /d 1 /f | C:\Windows\System32\reg.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Registry Console Tool Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 316 | "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --disable-quic --message-loop-type-ui --string-annotations --always-read-main-dll --field-trial-handle=6408,i,3271982262128488006,15972690864086999289,262144 --variations-seed-version --mojo-platform-channel-handle=6620 /prefetch:8 | C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe | — | msedge.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft Edge Exit code: 0 Version: 133.0.3065.92 Modules
| |||||||||||||||
| 760 | reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f | C:\Windows\System32\reg.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Registry Console Tool Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 768 | C:\WINDOWS\system32\cmd.exe /c copy C:\ProgramData\ryuk.exe "%appdata%\Microsoft\Windows\Start Menu\Programs\Startup\ryuk.exe" | C:\Windows\System32\cmd.exe | ryuk.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 888 | C:\WINDOWS\system32\cmd.exe /c Copy hrmlog1 C:\ProgramData\hrmlog1 | C:\Windows\System32\cmd.exe | — | ryuk.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1068 | cmd.exe /c taskkill /t /f /im sql* | C:\Windows\System32\cmd.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 128 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1080 | schtasks /CREATE /SC ONLOGON /TN ryk /TR "C:\Users\admin\Desktop\ryuk.exe" /RU SYSTEM /RL HIGHEST /F | C:\Windows\System32\schtasks.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Task Scheduler Configuration Tool Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1180 | C:\WINDOWS\system32\cmd.exe /c reg delete HKEY_CURRENT_USER\System\CurrentControlSet\Control\SafeBoot /va /F | C:\Windows\System32\cmd.exe | — | ryuk.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1204 | reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender" /v DisableAntiSpyware /t REG_DWORD /d 1 /f | C:\Windows\System32\reg.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Registry Console Tool Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| (PID) Process: | (4824) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Edge\BLBeacon |
| Operation: | write | Name: | state |
Value: 1 | |||
| (PID) Process: | (4824) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Edge\BLBeacon |
| Operation: | write | Name: | failed_count |
Value: 0 | |||
| (PID) Process: | (4824) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Edge\BLBeacon |
| Operation: | write | Name: | state |
Value: 2 | |||
| (PID) Process: | (4824) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Edge\StabilityMetrics |
| Operation: | write | Name: | user_experience_metrics.stability.exited_cleanly |
Value: 0 | |||
| (PID) Process: | (4824) msedge.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\EdgeUpdate\ClientStateMedium\{56EB18F8-B008-4CBD-B6D2-8C97FE7E9062}\LastWasDefault |
| Operation: | write | Name: | S-1-5-21-1693682860-607145093-2874071422-1001 |
Value: 913AC8FAB1962F00 | |||
| (PID) Process: | (4824) msedge.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\EdgeUpdate\ClientStateMedium\{56EB18F8-B008-4CBD-B6D2-8C97FE7E9062}\LastWasDefault |
| Operation: | write | Name: | S-1-5-21-1693682860-607145093-2874071422-1001 |
Value: 4110CDFAB1962F00 | |||
| (PID) Process: | (4824) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowProperties\459454 |
| Operation: | write | Name: | WindowTabManagerFileMappingId |
Value: {30EB2345-8B82-4925-BF15-062926945F76} | |||
| (PID) Process: | (4824) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowProperties\459454 |
| Operation: | write | Name: | WindowTabManagerFileMappingId |
Value: {714F78B4-EEF2-48F0-8EF3-E227C2C4ADDB} | |||
| (PID) Process: | (4824) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowProperties\459454 |
| Operation: | write | Name: | WindowTabManagerFileMappingId |
Value: {8200396B-1EA6-45F4-8212-C0862A7B79E7} | |||
| (PID) Process: | (4824) msedge.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowProperties\459454 |
| Operation: | write | Name: | WindowTabManagerFileMappingId |
Value: {5898BFD1-C5B0-42DC-A71F-25F54535C3A7} | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 4856 | ryuk.exe | C:\Users\admin\Desktop\RYUKID | text | |
MD5:90666016A5DB0269641CD46F666F7A4E | SHA256:4FF5DE00ED0EE63755EE151BEAF0283D4E74A3D47F3B10E5377C84D79154749D | |||
| 4824 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\ClientCertificates\LOG.old~RF17807a.TMP | — | |
MD5:— | SHA256:— | |||
| 4824 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\ClientCertificates\LOG.old | — | |
MD5:— | SHA256:— | |||
| 4856 | ryuk.exe | C:\ProgramData\ryuk.exe | executable | |
MD5:A57E1E6FE1C98D2E75799A46E9EB5797 | SHA256:8C983FC99712412B33C356E0FBBA3E58CA1CA0501537EA11C81CBA0198442ABE | |||
| 4856 | ryuk.exe | C:\Users\admin\Desktop\hrmlog1 | text | |
MD5:EE1AFDD8E8294A0A11B0505F15EE3E6D | SHA256:38135E983E9F81F5CC9E8C98D7D6CEF945046FF1032BD8146115263693CA87EF | |||
| 4856 | ryuk.exe | C:\ProgramData\RyukReadMe.html | text | |
MD5:CE4EFF51A051B7D03F22F4F28A97706E | SHA256:19D97C2CF647D7A31051D8BBEB082D2BF5DC7E7B70CF51A898BF269037E4110A | |||
| 4824 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\PersistentOriginTrials\LOG.old~RF17807a.TMP | — | |
MD5:— | SHA256:— | |||
| 4856 | ryuk.exe | C:\ProgramData\hrmlog1 | text | |
MD5:02C458062A07FCAD4FDC17D9D0412F8F | SHA256:EE1BF808361584D89927FFDD4FA21949E09EC1FF168518784B3BEA7363DF8994 | |||
| 4824 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\PersistentOriginTrials\LOG.old | — | |
MD5:— | SHA256:— | |||
| 4824 | msedge.exe | C:\Users\admin\AppData\Local\Microsoft\Edge\User Data\Default\parcel_tracking_db\LOG.old~RF1780c8.TMP | — | |
MD5:— | SHA256:— | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
1268 | svchost.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
1268 | svchost.exe | GET | 200 | 23.53.40.176:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
2980 | msedge.exe | GET | 200 | 150.171.28.11:80 | http://edge.microsoft.com/browsernetworktime/time/1/current?cup2key=2:c2G6e4dG5g-FSWexVGAhPDnsY4R1H4K0hu82ZeNO298&cup2hreq=e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 | unknown | — | — | whitelisted |
3844 | SIHClient.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
3844 | SIHClient.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
420 | svchost.exe | GET | 200 | 2.23.77.188:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
7352 | svchost.exe | HEAD | 200 | 199.232.210.172:80 | http://msedge.b.tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/bf8090eb-6e5c-4c51-9250-5bf9b46cf160?P1=1751124261&P2=404&P3=2&P4=GMjMwMY55jQ7ZgNJ3X2u0995JaBip8BwSyo66ud%2fMOppB4LU3%2f09%2fB8w4m18Wiv%2bI6qcFFOtVzBx4z%2bQJY5DVg%3d%3d | unknown | — | — | whitelisted |
7352 | svchost.exe | GET | 206 | 199.232.210.172:80 | http://msedge.b.tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/bf8090eb-6e5c-4c51-9250-5bf9b46cf160?P1=1751124261&P2=404&P3=2&P4=GMjMwMY55jQ7ZgNJ3X2u0995JaBip8BwSyo66ud%2fMOppB4LU3%2f09%2fB8w4m18Wiv%2bI6qcFFOtVzBx4z%2bQJY5DVg%3d%3d | unknown | — | — | whitelisted |
7352 | svchost.exe | GET | 206 | 199.232.210.172:80 | http://msedge.b.tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/bf8090eb-6e5c-4c51-9250-5bf9b46cf160?P1=1751124261&P2=404&P3=2&P4=GMjMwMY55jQ7ZgNJ3X2u0995JaBip8BwSyo66ud%2fMOppB4LU3%2f09%2fB8w4m18Wiv%2bI6qcFFOtVzBx4z%2bQJY5DVg%3d%3d | unknown | — | — | whitelisted |
7352 | svchost.exe | HEAD | 200 | 199.232.210.172:80 | http://msedge.b.tlu.dl.delivery.mp.microsoft.com/filestreamingservice/files/4c4fdee0-d69c-42b7-bf5c-3ec046e9dfc9?P1=1751124262&P2=404&P3=2&P4=KO1gA6eJMdZBFwnc27NM9fd2ge%2fmQbTXyv9q6zz5WYQq4pGREesYF1tbvuyyPoU68ldWF1CTrj12us0zvpJ6mg%3d%3d | unknown | — | — | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
5944 | MoUsoCoreWorker.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
1268 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
6172 | RUXIMICS.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.2:445 | — | — | — | whitelisted |
4 | System | 192.168.100.2:139 | — | — | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
4 | System | 192.168.100.2:137 | — | — | — | whitelisted |
1268 | svchost.exe | 23.53.40.176:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
1268 | svchost.exe | 23.35.229.160:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
edge.microsoft.com |
| whitelisted |
config.edge.skype.com |
| whitelisted |
ntp.msn.com |
| whitelisted |
copilot.microsoft.com |
| whitelisted |
assets.msn.com |
| whitelisted |
img-s-msn-com.akamaized.net |
| whitelisted |
PID | Process | Class | Message |
|---|---|---|---|
2980 | msedge.exe | Misc activity | ET FILE_SHARING File Sharing Related Domain in DNS Lookup (wormhole .app) |
2980 | msedge.exe | Misc activity | ET FILE_SHARING File Sharing Domain Observed in TLS SNI (wormhole .app) |
2980 | msedge.exe | Misc activity | ET FILE_SHARING File Sharing Related Domain in DNS Lookup (wormhole .app) |
2980 | msedge.exe | Misc activity | ET FILE_SHARING File Sharing Domain Observed in TLS SNI (wormhole .app) |
2980 | msedge.exe | Misc activity | ET FILE_SHARING File Sharing Related Domain in DNS Lookup (wormhole .app) |
2980 | msedge.exe | Misc activity | ET FILE_SHARING File Sharing Related Domain in DNS Lookup (wormhole .app) |
2980 | msedge.exe | Misc activity | ET FILE_SHARING File Sharing Domain Observed in TLS SNI (wormhole .app) |
2980 | msedge.exe | Misc activity | ET FILE_SHARING File Sharing Domain Observed in TLS SNI (wormhole .app) |
2980 | msedge.exe | Misc activity | ET FILE_SHARING File Sharing Domain Observed in TLS SNI (wormhole .app) |
2980 | msedge.exe | Misc activity | ET FILE_SHARING File Sharing Domain Observed in TLS SNI (wormhole .app) |