File name:

ryuk.exe

Full analysis: https://app.any.run/tasks/7f8b185f-5eba-4122-b9ba-ee38817e4c88
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.

Malware Trends Tracker     >>>
Analysis date: June 21, 2025, 22:05:10
OS: Windows 10 Professional (build: 19044, 64 bit)
Tags:
ryuk
ransomware
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32+ executable (console) x86-64, for MS Windows, 7 sections
MD5:

47ED9C552F9A27ACC78FF1FF9520A1D9

SHA1:

3AEEBF418726A7AD9CD144FE9504E9F1283AE0A4

SHA256:

DE6927F1AC4A03FDE7B58B4EEB431E9FEF0CED5864E7DCC58E9B8B9AB146DEBF

SSDEEP:

49152:puLGkfdv59gjsoqJT6QlLAM0xAMd6YTx1g:put59gc564Aq8M

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

  • MALICIOUS

    • RYUK mutex has been found

      • ryuk.exe (PID: 2708)

    • Create files in the Startup directory

      • cmd.exe (PID: 6836)

    • Uses Task Scheduler to autorun other applications

      • cmd.exe (PID: 2716)
      • cmd.exe (PID: 7000)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • ryuk.exe (PID: 2708)
      • cmd.exe (PID: 6836)

    • Starts CMD.EXE for commands execution

      • ryuk.exe (PID: 2708)
      • cmd.exe (PID: 5708)
      • cmd.exe (PID: 6012)

    • Uses ATTRIB.EXE to modify file attributes

      • cmd.exe (PID: 868)
      • cmd.exe (PID: 5724)
      • cmd.exe (PID: 516)

    • Application launched itself

      • cmd.exe (PID: 5708)
      • cmd.exe (PID: 6012)

    • Uses ICACLS.EXE to modify access control lists

      • cmd.exe (PID: 3640)

    • Uses REG/REGEDIT.EXE to modify registry

      • cmd.exe (PID: 4012)
      • cmd.exe (PID: 3092)
      • cmd.exe (PID: 3580)
      • cmd.exe (PID: 6344)
      • cmd.exe (PID: 6220)

    • Uses TASKKILL.EXE to kill process

      • cmd.exe (PID: 3884)
      • cmd.exe (PID: 6012)

    • Found strings related to reading or modifying Windows Defender settings

      • ryuk.exe (PID: 2708)

    • Creates file in the systems drive root

      • ryuk.exe (PID: 2708)

    • Uses pipe srvsvc via SMB (transferring data)

      • ryuk.exe (PID: 2708)

  • INFO

    • Checks supported languages

      • ryuk.exe (PID: 2708)

    • Creates files in the program directory

      • ryuk.exe (PID: 2708)
      • cmd.exe (PID: 7164)

    • Uses Task Scheduler to autorun other applications (AUTOMATE)

      • cmd.exe (PID: 1944)
      • cmd.exe (PID: 768)

    • Launching a file from the Startup directory

      • cmd.exe (PID: 6836)

    • Reads the machine GUID from the registry

      • ryuk.exe (PID: 2708)

    • Reads security settings of Internet Explorer

      • notepad.exe (PID: 6292)

    • Reads the computer name

      • ryuk.exe (PID: 2708)

    • Manual execution by a user

      • notepad.exe (PID: 6292)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Generic Win/DOS Executable (50)
.exe | DOS Executable Generic (49.9)

EXIF

EXE

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
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
173
Monitored processes
43
Malicious processes
1
Suspicious processes
1

Behavior graph

Click at the process to see the details
start #RYUK ryuk.exe conhost.exe no specs cmd.exe schtasks.exe no specs cmd.exe cmd.exe no specs cmd.exe schtasks.exe no specs cmd.exe no specs attrib.exe no specs cmd.exe schtasks.exe no specs cmd.exe schtasks.exe no specs cmd.exe no specs attrib.exe no specs cmd.exe no specs attrib.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs conhost.exe no specs cmd.exe no specs taskkill.exe no specs conhost.exe no specs icacls.exe no specs cmd.exe no specs taskkill.exe no specs reg.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs cmd.exe no specs reg.exe no specs cmd.exe no specs reg.exe no specs cmd.exe no specs reg.exe no specs cmd.exe no specs reg.exe no specs notepad.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
432reg delete HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\SafeBoot /va /FC:\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
Images
c:\windows\system32\reg.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
516C:\WINDOWS\system32\cmd.exe /c attrib +h +s C:\ProgramData\ryuk.exeC:\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
Images
c:\windows\system32\cmd.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\sechost.dll
768C:\WINDOWS\system32\cmd.exe /c schtasks /CREATE /SC ONLOGON /TN RYUK /TR C:\ProgramData\ryuk.exe /FC:\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
Images
c:\windows\system32\cmd.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\sechost.dll
868C:\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
Images
c:\windows\system32\cmd.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\sechost.dll
1128reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender" /v DisableAntiSpyware /t REG_DWORD /d 1 /fC:\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
Images
c:\windows\system32\reg.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
1468reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /fC:\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
Images
c:\windows\system32\reg.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
1944C:\WINDOWS\system32\cmd.exe /c schtasks /CREATE /SC ONLOGON /TN RYUK /TR C:\ProgramData\ryuk.exe /RU SYSTEM /RL HIGHEST /FC:\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
Images
c:\windows\system32\cmd.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\sechost.dll
2028\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exe—cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Console Window Host
Exit code:
0
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\conhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\shcore.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
2448C:\WINDOWS\system32\cmd.exe /c Copy C:\ProgramData\hrmlog1 %userprofile%\Desktop\hrmlog1C:\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
Images
c:\windows\system32\cmd.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\advapi32.dll
2696schtasks /CREATE /SC ONLOGON /TN RYUK /TR C:\ProgramData\ryuk.exe /FC:\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
Images
c:\windows\system32\schtasks.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
Total events
2 236
Read events
2 236
Write events
0
Delete events
0

Modification events

No data
Executable files
2
Suspicious files
2
Text files
7
Unknown types
0

Dropped files

PID
Process
Filename
Type
2708ryuk.exeC:\ProgramData\ryuk.exeexecutable
MD5:47ED9C552F9A27ACC78FF1FF9520A1D9
SHA256:DE6927F1AC4A03FDE7B58B4EEB431E9FEF0CED5864E7DCC58E9B8B9AB146DEBF
6836cmd.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ryuk.exeexecutable
MD5:47ED9C552F9A27ACC78FF1FF9520A1D9
SHA256:DE6927F1AC4A03FDE7B58B4EEB431E9FEF0CED5864E7DCC58E9B8B9AB146DEBF
2708ryuk.exeC:\Users\admin\Desktop\RYUKIDtext
MD5:B287EE941DB571EB46AF3C1B6400D7A5
SHA256:316FEBF39486E954915EAAFAED1B0DFD977AC3FB6D6D71E0EE74DF99B9325DED
2708ryuk.exeC:\ProgramData\hrmlog2binary
MD5:3461DA3F759F40CEB0778EEFC12C364B
SHA256:727CC8A9AA4F56629F5E37D5F8057AADB4621DB9A6D63C2F8F45EE75752BA50E
2708ryuk.exeC:\Users\admin\Desktop\hrmlog1text
MD5:7FC84D2C39037FE9747FB9B2EFEB9910
SHA256:E4D872090E40B46621CFDED2A6E0BBE62EA33B766228EB98E2669ED5BD581ED3
2708ryuk.exeC:\ProgramData\hrmlog1text
MD5:AAB5B4BD4F38316645079D6EDD6189BF
SHA256:595CE41EA9019ECFBD6619457CC864537D719F757365951E5362079D326452EA
2708ryuk.exeC:\Users\admin\Desktop\hrmlog2binary
MD5:3461DA3F759F40CEB0778EEFC12C364B
SHA256:727CC8A9AA4F56629F5E37D5F8057AADB4621DB9A6D63C2F8F45EE75752BA50E
4104cmd.exeC:\Users\admin\Desktop\RyukReadMe.txttext
MD5:23CB6BCE418D720B600FB36625CEA4DF
SHA256:4EF805E48AC50FDA04EEFFFF3A725481151DD1DCCAF462C02105AA27F630E136
7164cmd.exeC:\ProgramData\RYUKIDtext
MD5:B287EE941DB571EB46AF3C1B6400D7A5
SHA256:316FEBF39486E954915EAAFAED1B0DFD977AC3FB6D6D71E0EE74DF99B9325DED
2708ryuk.exeC:\ProgramData\RyukReadMe.htmltext
MD5:CE4EFF51A051B7D03F22F4F28A97706E
SHA256:19D97C2CF647D7A31051D8BBEB082D2BF5DC7E7B70CF51A898BF269037E4110A
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
3
TCP/UDP connections
24
DNS requests
8
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
6160
svchost.exe
GET
200
2.17.190.73:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
—
—
whitelisted
1268
svchost.exe
GET
200
184.24.77.19:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
—
—
whitelisted
1268
svchost.exe
GET
200
23.35.229.160:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
5944
MoUsoCoreWorker.exe
51.104.136.2:443
—
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4
System
192.168.100.255:137
—
—
—
whitelisted
6876
RUXIMICS.exe
51.104.136.2:443
—
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
1268
svchost.exe
51.104.136.2:443
—
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
4
System
192.168.100.2:445
—
—
—
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
4
System
192.168.100.2:139
—
—
—
whitelisted
4
System
192.168.100.2:137
—
—
—
whitelisted
2336
svchost.exe
172.211.123.248:443
client.wns.windows.com
MICROSOFT-CORP-MSN-AS-BLOCK
FR
whitelisted
6160
svchost.exe
20.190.159.0:443
login.live.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted

DNS requests

Domain
IP
Reputation
google.com
  • 216.58.212.142
whitelisted
client.wns.windows.com
  • 172.211.123.248
whitelisted
login.live.com
  • 20.190.159.0
  • 40.126.31.130
  • 20.190.159.131
  • 40.126.31.128
  • 20.190.159.71
  • 20.190.159.4
  • 20.190.159.73
  • 40.126.31.1
whitelisted
ocsp.digicert.com
  • 2.17.190.73
whitelisted
settings-win.data.microsoft.com
  • 20.73.194.208
whitelisted
crl.microsoft.com
  • 184.24.77.19
  • 184.24.77.30
  • 184.24.77.22
  • 184.24.77.23
  • 184.24.77.18
  • 184.24.77.35
  • 184.24.77.27
  • 184.24.77.24
  • 184.24.77.29
whitelisted
www.microsoft.com
  • 23.35.229.160
whitelisted
nexusrules.officeapps.live.com
  • —
whitelisted

Threats

No threats detected
No debug info
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Reports
ryuk.exe