Analysis Overview
SHA256
f9a5a72ead096594c5d59abe706e3716f6000c3b4ebd7690f2eb114a37d1a7db
Threat Level: Known bad
The file Yashma ransomware builder v1.2.exe was found to be: Known bad.
Malicious Activity Summary
Chaos
Chaos family
Chaos Ransomware
Deletes shadow copies
Modifies boot configuration data using bcdedit
Disables Task Manager via registry modification
Deletes backup catalog
Drops startup file
Executes dropped EXE
Reads user/profile data of web browsers
Adds Run key to start application
Enumerates connected drives
Drops desktop.ini file(s)
Drops file in Windows directory
Enumerates physical storage devices
Unsigned PE
Uses Task Scheduler COM API
Modifies data under HKEY_USERS
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Modifies registry class
Uses Volume Shadow Copy service COM API
Opens file in notepad (likely ransom note)
Checks SCSI registry key(s)
Suspicious use of WriteProcessMemory
Interacts with shadow copies
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-24 10:40
Signatures
Chaos Ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Chaos family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-24 10:40
Reported
2024-06-24 10:50
Platform
win10-20240611-en
Max time kernel
612s
Max time network
617s
Command Line
Signatures
Chaos
Chaos Ransomware
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Deletes shadow copies
Modifies boot configuration data using bcdedit
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\bcdedit.exe | N/A |
| N/A | N/A | C:\Windows\system32\bcdedit.exe | N/A |
Deletes backup catalog
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\wbadmin.exe | N/A |
Disables Task Manager via registry modification
Drops startup file
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Downloads\daweasa.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
Reads user/profile data of web browsers
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000\Software\Microsoft\Windows\CurrentVersion\Run\UpdateTask = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe" | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group3\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Public\Downloads\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Public\desktop.ini | C:\Program Files (x86)\Windows Media Player\wmplayer.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\desktop.ini | C:\Program Files (x86)\Windows Media Player\wmplayer.exe | N/A |
| File opened for modification | C:\Users\Public\Desktop\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Public\Documents\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Public\Music\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Public\Videos\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Public\Music\desktop.ini | C:\Program Files (x86)\Windows Media Player\wmplayer.exe | N/A |
| File opened for modification | C:\Users\Public\Videos\desktop.ini | C:\Program Files (x86)\Windows Media Player\wmplayer.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Public\Pictures\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn1\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\All Users\Microsoft\Windows\Start Menu Places\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\Links\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\Music\desktop.ini | C:\Program Files (x86)\Windows Media Player\wmplayer.exe | N/A |
| File opened for modification | C:\Users\Admin\Desktop\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group2\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group3\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\Favorites\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Public\AccountPictures\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\Contacts\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn2\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\Music\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\Saved Games\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\Saved Pictures\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group1\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Public\Libraries\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessibility\Desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\Desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\OneDrive\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\Videos\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group2\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Windows PowerShell\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\Searches\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\Documents\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\Favorites\Links\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Public\Pictures\desktop.ini | C:\Program Files (x86)\Windows Media Player\wmplayer.exe | N/A |
| File opened for modification | C:\Users\Admin\Downloads\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Public\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\Pictures\Camera Roll\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Local\Microsoft\Windows\Application Shortcuts\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
Enumerates connected drives
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll | \??\c:\windows\system32\svchost.exe | N/A |
| File opened for modification | C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll | \??\c:\windows\system32\svchost.exe | N/A |
| File created | C:\Windows\rescache\_merged\4272278488\2581520266.pri | C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\SecHealthUI.exe | N/A |
| File created | C:\Windows\rescache\_merged\4272278488\2581520266.pri | C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\SecHealthUI.exe | N/A |
Enumerates physical storage devices
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 | C:\Windows\System32\vds.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName | C:\Windows\System32\vds.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000 | C:\Windows\System32\vds.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\FriendlyName | C:\Windows\System32\vds.exe | N/A |
Interacts with shadow copies
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\vssadmin.exe | N/A |
Modifies data under HKEY_USERS
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10" | C:\Windows\system32\LogonUI.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808" | C:\Windows\system32\LogonUI.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (data) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00 | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "1" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040" | C:\Windows\system32\LogonUI.exe | N/A |
| Key created | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1" | C:\Windows\system32\LogonUI.exe | N/A |
| Set value (int) | \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1" | C:\Windows\system32\LogonUI.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\FFlags = "1" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7} | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\Shell\KnownFolderDerivedFolderType = "{57807898-8C4F-4462-BB63-71042380B109}" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 0000000001000000ffffffff | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\FFlags = "1092616257" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByDirection = "1" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656} | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\Mode = "4" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupView = "0" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\LogicalViewMode = "1" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\IconSize = "16" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:PID = "0" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 14002e80922b16d365937a46956b92703aca08af0000 | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\LogicalViewMode = "1" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupView = "0" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 0202 | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\Shell\SniffedFolderType = "Generic" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Mode = "4" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings | C:\Windows\system32\OpenWith.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\IconSize = "16" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\1 = 14002e8005398e082303024b98265d99428e115f0000 | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\1 | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 0100000000000000ffffffff | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\1\MRUListEx = ffffffff | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\Shell | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupByKey:PID = "0" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000 | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2 | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000007800000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000 | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000 | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\1\NodeSlot = "2" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000 | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000007800000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000 | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1092616257" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (data) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupByDirection = "1" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{7D49D726-3C21-4F05-99AA-FDC2C9474656}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Documents" | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
Opens file in notepad (likely ransom note)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\NOTEPAD.EXE | N/A |
| N/A | N/A | C:\Windows\system32\NOTEPAD.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\Downloads\daweasa.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\svchost.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
| Token: SeAuditPrivilege | N/A | C:\Windows\system32\vssvc.exe | N/A |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeProfSingleProcessPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemEnvironmentPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeUndockPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 33 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 34 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 35 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 36 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeIncreaseQuotaPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeLoadDriverPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemtimePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeProfSingleProcessPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeSystemEnvironmentPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeRemoteShutdownPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeUndockPrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 33 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 34 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 35 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: 36 | N/A | C:\Windows\System32\Wbem\WMIC.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\system32\wbengine.exe | N/A |
| Token: SeRestorePrivilege | N/A | C:\Windows\system32\wbengine.exe | N/A |
| Token: SeSecurityPrivilege | N/A | C:\Windows\system32\wbengine.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Program Files (x86)\Windows Media Player\wmplayer.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Program Files (x86)\Windows Media Player\wmplayer.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\System32\unregmp2.exe | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\System32\unregmp2.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Windows Media Player\wmplayer.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe | N/A |
| N/A | N/A | C:\Windows\system32\OpenWith.exe | N/A |
| N/A | N/A | C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\SecHealthUI.exe | N/A |
| N/A | N/A | C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\SecHealthUI.exe | N/A |
| N/A | N/A | C:\Windows\system32\LogonUI.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy service COM API
Processes
C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe
"C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe"
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\4ewyo1et\4ewyo1et.cmdline"
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\RESA08.tmp" "c:\Users\Admin\Downloads\CSC135450D1821C4240BFDDCB5CE0E25DB8.TMP"
C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
C:\Users\Admin\Downloads\daweasa.exe
"C:\Users\Admin\Downloads\daweasa.exe"
C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
C:\Windows\system32\vssadmin.exe
vssadmin delete shadows /all /quiet
C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
C:\Windows\System32\Wbem\WMIC.exe
wmic shadowcopy delete
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
C:\Windows\system32\bcdedit.exe
bcdedit /set {default} bootstatuspolicy ignoreallfailures
C:\Windows\system32\bcdedit.exe
bcdedit /set {default} recoveryenabled no
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
C:\Windows\system32\wbadmin.exe
wbadmin delete catalog -quiet
C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\read_it.txt
C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
C:\Program Files (x86)\Windows Media Player\wmplayer.exe
"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /Play -Embedding
C:\Windows\SysWOW64\unregmp2.exe
"C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
C:\Windows\System32\unregmp2.exe
"C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
\??\c:\windows\system32\svchost.exe
c:\windows\system32\svchost.exe -k localserviceandnoimpersonation -s upnphost
C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\SecHealthUI.exe
"C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\SecHealthUI.exe" -ServerName:SecHealthUI.AppXep4x2tbtjws1v9qqs0rmb3hxykvkpqtn.mca
C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{06622D85-6856-4460-8DE1-A81921B41C4B}
C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\SecHealthUI.exe
"C:\Windows\SystemApps\Microsoft.Windows.SecHealthUI_cw5n1h2txyewy\SecHealthUI.exe" -ServerName:SecHealthUI.AppXep4x2tbtjws1v9qqs0rmb3hxykvkpqtn.mca
C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /7
C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0 /state0:0xa3a81055 /state1:0x41c64e6d
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.117.168.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | watson.telemetry.microsoft.com | udp |
| US | 104.208.16.94:443 | watson.telemetry.microsoft.com | tcp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.252.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 94.16.208.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | watson.telemetry.microsoft.com | udp |
| US | 104.208.16.94:443 | watson.telemetry.microsoft.com | tcp |
Files
memory/4240-0-0x00007FFA6D723000-0x00007FFA6D724000-memory.dmp
memory/4240-1-0x00000000000D0000-0x000000000015C000-memory.dmp
memory/4240-2-0x00007FFA6D720000-0x00007FFA6E10C000-memory.dmp
memory/4240-3-0x00007FFA6D720000-0x00007FFA6E10C000-memory.dmp
memory/4240-4-0x00007FFA6D720000-0x00007FFA6E10C000-memory.dmp
memory/4240-5-0x00007FFA6D720000-0x00007FFA6E10C000-memory.dmp
memory/4240-6-0x00007FFA6D720000-0x00007FFA6E10C000-memory.dmp
memory/4240-7-0x00007FFA6D720000-0x00007FFA6E10C000-memory.dmp
memory/4240-12-0x00007FFA6D720000-0x00007FFA6E10C000-memory.dmp
memory/4240-13-0x00007FFA6D720000-0x00007FFA6E10C000-memory.dmp
\??\c:\Users\Admin\AppData\Local\Temp\4ewyo1et\4ewyo1et.cmdline
| MD5 | 922888ae46278294f2bcd3ec52c49366 |
| SHA1 | 297b97e3912cad83a6da54567e288d331da566ad |
| SHA256 | 497f703daa9413036aa19b6220a498dc021e3057ffd1fab8d57b335d5de768d5 |
| SHA512 | e17232949837aa262500deb07e1cebb7dd67fe7fd82632c9f0e94af8a2cbfc0f844016251cc7e801f28b252202350efaf0bc92eb0083b76525510e24a40e8db1 |
\??\c:\Users\Admin\AppData\Local\Temp\4ewyo1et\4ewyo1et.0.cs
| MD5 | 8fc012e07f1d9cf2859d68c8c88c9a71 |
| SHA1 | b1d1c4fa5385e7ac8a67e37774ad03d35e79ea81 |
| SHA256 | c5fc1616ba79f8328cb5321c018fb60bfe87f81a7f5d9ca294d26a66fa34789a |
| SHA512 | d7ae293a72dada9a10a6ca74b1f348b726885f15b6fd4cf7f6339294e3e649e25bb9b74a7139e6a93380123d4664382a9d8f4ea240a9e3e623995531ce6e679c |
\??\c:\Users\Admin\Downloads\CSC135450D1821C4240BFDDCB5CE0E25DB8.TMP
| MD5 | f12b2709ea147bf8d5dc206654c618f3 |
| SHA1 | 02fac5eb0ba50d5ab9f71069f621a3bdc5e92710 |
| SHA256 | fbff196e2fe96edbd315d81962b18977d61f2551ac230fe94d038bb1e6b9b37e |
| SHA512 | cb9cf9e01b6c23d1db2060ee39c4d34baa479ed78998ea038ca5e2eb36cb4715723a4e99e0b9907d9f770a754a2dd203efaad1307df99c146b65023a93b9fa1a |
C:\Users\Admin\AppData\Local\Temp\RESA08.tmp
| MD5 | d9fadf7b21996e1d179005382c79688f |
| SHA1 | 8ecd450223f62b1858d41c296f0d5e848bd4ccf3 |
| SHA256 | 2856cf4b0c300d16d5a54f16d583bc18cc2c420086f9e84d37d09e989abdeac4 |
| SHA512 | 197afd95a26844147f9adce0946f548ff328a03686a8c698380359500fda0f0ab7ef682b3cedf46a0f8ad0f64624dac6a69a7db684d077643f6d1c56a1cb0b83 |
memory/4240-27-0x00007FFA6D720000-0x00007FFA6E10C000-memory.dmp
C:\Users\Admin\Downloads\daweasa.exe
| MD5 | 32749602713f45537cf158952700ef59 |
| SHA1 | 5e1869c49a2bff4509f48ce9763934ee375dc00f |
| SHA256 | 481512227357aff191b3fec23dd079ac3d70f4dfa7ccb6905204599e092803e9 |
| SHA512 | 2e2859fcaf03767b67a4c7ec8b6783533d0a8a1332bb8eceb75ea5c54619fd8e7d5d55cf8759ab3936df2e7ca56adf829ba17722423de7a25d4ce04191cbeac8 |
memory/3896-30-0x00000000004E0000-0x00000000004EE000-memory.dmp
C:\Users\Default\read_it.txt
| MD5 | ed5cc52876db869de48a4783069c2a5e |
| SHA1 | a9d51ceaeff715ace430f9462ab2ee4e7f33e70e |
| SHA256 | 45726f2f29967ef016f8d556fb6468a577307d67388cc4530295a9ca10fdfa36 |
| SHA512 | 1745aefb9b4db4cdd7c08ee3a7d133db08f35a336fd18b598211519b481ef25ac84a3e8a3da3db06caef9f531288d1cf0ca8d4b2560637945e7953e8b45421f5 |
C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\Magnify.lnk
| MD5 | d1457b72c3fb323a2671125aef3eab5d |
| SHA1 | 5bab61eb53176449e25c2c82f172b82cb13ffb9d |
| SHA256 | 8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1 |
| SHA512 | ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0 |
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Yashma ransomware builder v1.2.exe.log
| MD5 | d63ff49d7c92016feb39812e4db10419 |
| SHA1 | 2307d5e35ca9864ffefc93acf8573ea995ba189b |
| SHA256 | 375076241775962f3edc08a8c72832a00920b427a4f3332528d91d21e909fa12 |
| SHA512 | 00f8c8d0336d6575b956876183199624d6f4d2056f2c0aa633a6f17c516f22ee648062d9bc419254d84c459323e9424f0da8aed9dd4e16c2926e5ba30e797d8a |
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\daweasa.exe.log
| MD5 | 6f8201778bb230fb0ac7c8b78a134a12 |
| SHA1 | 06570db78997747dd80e558a483d29af167f43c5 |
| SHA256 | 984fcdb20fcd38e921511def1e720e36c7a20887010f4f5035b0a6b24c75148f |
| SHA512 | 86ebbb74d94c382073f4481bb3a4c0747b801753adba15ee36c97dc8b09827e7a29b46209b559c1ab4fa836fbbe6a90b0339e97ed9d5d4856179604e380f2254 |
C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML
| MD5 | 7050d5ae8acfbe560fa11073fef8185d |
| SHA1 | 5bc38e77ff06785fe0aec5a345c4ccd15752560e |
| SHA256 | cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b |
| SHA512 | a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b |
C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.DTD
| MD5 | 90be2701c8112bebc6bd58a7de19846e |
| SHA1 | a95be407036982392e2e684fb9ff6602ecad6f1e |
| SHA256 | 644fbcdc20086e16d57f31c5bad98be68d02b1c061938d2f5f91cbe88c871fbf |
| SHA512 | d618b473b68b48d746c912ac5fc06c73b047bd35a44a6efc7a859fe1162d68015cf69da41a5db504dcbc4928e360c095b32a3b7792fcc6a38072e1ebd12e7cbe |
C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb
| MD5 | 98df921f667bf303621c789390ed9f2e |
| SHA1 | d9c82e51534cf1c2eb5a255286de6a09ca364d1a |
| SHA256 | 8b8497d37fa9ddd44e275aa7631d7c7173c384a501d11e73e3d4401513c4bbe3 |
| SHA512 | 58e896295763c2729c5a19986356e7cc7706265bbda5cd9cec98201ec9ce86c4b68a3e388c86aba198870ca4b8ab1a7876f2d8e1fff7437216dd2789b3ed3796 |
C:\Users\Admin\AppData\Local\Temp\wmsetup.log
| MD5 | dfab6c0221d191271746c035b66d2d80 |
| SHA1 | 5d0230e847e865af861e5108e8be7c201ca1a931 |
| SHA256 | 17abe1e5a63254e06697c750b1091b0bf1db0594b556aeb5c920abf8bafa4037 |
| SHA512 | 0203d8b931402bdd138b0c042c95088cbec43a36a5837f38663d32554226f54c3e0f3bec30893858e5fec78ac89a88d83a67dc2876a304c60dd6f896f936021d |
C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb
| MD5 | 80015ec0ac3f69edbf5ac4131f1bb484 |
| SHA1 | 6daead72d5be5809c9baa776e0e45c8f6a5a1e04 |
| SHA256 | ac0dae30e46ede304f8710b271fe9ea5d2acbd2dbf3b338d256b54da8eb13119 |
| SHA512 | 2d25f46807d79a34270042d845354326b5923fb32a677450f5eaf1c379c0c71c5f4793245a5d2a88c6a3ac5db1cd5cdd1d4ce19afac332c8b09f4ab852068839 |
memory/4548-1093-0x0000000008D40000-0x0000000008D50000-memory.dmp
memory/4548-1096-0x0000000008D40000-0x0000000008D50000-memory.dmp
memory/4548-1097-0x0000000008D40000-0x0000000008D50000-memory.dmp
memory/4548-1098-0x0000000008D40000-0x0000000008D50000-memory.dmp
memory/4548-1100-0x0000000008D40000-0x0000000008D50000-memory.dmp
memory/4548-1099-0x0000000008D40000-0x0000000008D50000-memory.dmp
memory/4548-1095-0x0000000008D40000-0x0000000008D50000-memory.dmp
memory/4548-1094-0x0000000008D40000-0x0000000008D50000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\74d7f43c1561fc1e.customDestinations-ms
| MD5 | 50e94840d17b7971f2f2dae1aa0b4832 |
| SHA1 | 7e2a33630853f1ca983f57b82a93737eab286ec1 |
| SHA256 | 96ce99f521ba9d73a63535e2b447aca1884a9048702f4dbee86c3974aba36ebb |
| SHA512 | 2e035d728c1feed7b4e5c93bebb08b7a3843c70ed4ff95cc2c6fa6502d894d83d0f0c3350ce7f29a7d9ba4e2e9377af17caac04ccb6482087c349d06f1ee5912 |
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\74d7f43c1561fc1e.customDestinations-ms
| MD5 | d235521824e25f9c40af5d0630be5d95 |
| SHA1 | ee404ec3c2883f3e876c87430e528ff718540c11 |
| SHA256 | 0eb5bf68665d9f2cef9256a41b635fd3ef04d83b68f484b9d71e4d18e855d34b |
| SHA512 | 205dd44b35ce424e880d785caa00eccce569dabdef07f823a001056235a077e3ec6e22cc93010e5e6074a379ee365ed04930d6676f156c1f52d5585415b50153 |
C:\Users\Admin\AppData\Local\Microsoft\Media Player\LocalMLS_3.wmdb
| MD5 | d009ab76f558f357c38984ba913e17f3 |
| SHA1 | 332295088c7d0b5d3ba32fb1fb39fb7592abf471 |
| SHA256 | 5d57c77976369a640109fa02cca87d748e187f785d5535331e2d487b5b72e142 |
| SHA512 | f882926f087ffb7373eb11cb62c4b6071069c13fbefd26aabdd62834224d9a84529ebe9971150118ce1537f0d63ac592b36ad9d46bd344935e46f5d858f5f625 |
C:\Users\Admin\AppData\Local\Packages\microsoft.windows.sechealthui_cw5n1h2txyewy\AC\Microsoft\Windows\4272278488\2581520266.pri
| MD5 | dc37deff2947a4ec8bf9b40a3dc25c49 |
| SHA1 | 422bdce2dc21c634760c8b06a60c4ebf131cc592 |
| SHA256 | 00dee1b03565baf7c105f1484f27a2e04d900538c153372482fbedd8cde61d85 |
| SHA512 | bbe9730344e0f648c53d2d5c518791ce8d92c1f04e1b9646bb4feca24d5f41fae255eff57ad7c36ff1d26869ad25eede25bbd4e98a59267d41ee71f3885d9dd4 |