Analysis
-
max time kernel
55s -
platform
windows11-21h2_x64 -
resource
win11-20250314-en -
resource tags
arch:x64arch:x86image:win11-20250314-enlocale:en-usos:windows11-21h2-x64system -
submitted
23/03/2025, 06:19
Behavioral task
behavioral1
Sample
yea.exe
Resource
win11-20250314-en
General
-
Target
yea.exe
-
Size
27KB
-
MD5
d0fedfe9df8f5440847a57e531262e0e
-
SHA1
78ffb5eaa655ba8d4e7f869d012f347a07d1eaa6
-
SHA256
fbc39e38d112f99731151a8e2dc19765cdc18150109064c0df6f6a61bbbdf4e5
-
SHA512
94941cbd9dd1ca3aef125ae502368a5bf9f8a193662f621e12736047db1b31b9b09646b48e4a3a5114da125b22436adb276ff92ebac339269f1084f22c14ecf7
-
SSDEEP
384:LtWZPzzxAm1vS5ZooqYEWx0noBeuBb6llVOy5o91Ep+82vz:C7zxAmOS/Y70nWeu1Cho9uw82L
Malware Config
Extracted
C:\ProgramData\Adobe\Setup\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\read_it.txt
Signatures
-
Chaos
Ransomware family first seen in June 2021.
-
Chaos Ransomware 2 IoCs
resource yara_rule behavioral1/memory/3864-1-0x0000000000260000-0x000000000026E000-memory.dmp family_chaos behavioral1/files/0x001900000002b3fe-7.dat family_chaos -
Chaos family
-
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 5600 bcdedit.exe 3368 bcdedit.exe -
pid Process 5400 wbadmin.exe -
Disables Task Manager via registry modification
-
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 3488 svchost.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000\Software\Microsoft\Windows\CurrentVersion\Run\UpdateTask = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe" svchost.exe -
Drops desktop.ini file(s) 64 IoCs
description ioc Process File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group1\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group1\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group2\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\AccountPictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Application Shortcuts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group2\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3920535620-1286624088-2946613906-1000\desktop.ini svchost.exe File opened for modification C:\Users\Public\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Public\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn1\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Windows PowerShell\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\WinX\Group3\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn2\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Local\Microsoft\Windows\WinX\Group3\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\System Tools\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\Public\Libraries\desktop.ini svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName vds.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\FriendlyName vds.exe -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 408 vssadmin.exe -
Modifies registry class 64 IoCs
description ioc Process Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 8c003100000000006e5aab76110050524f4752417e310000740009000400efbec5525961775a69322e0000003f0000000000010000000000000000004a00000000002a51f000500072006f006700720061006d002000460069006c0065007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100370038003100000018000000 OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\Shell OpenWith.exe Set value (str) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}" OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1" OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\IconSize = "16" OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupView = "0" OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\1 OpenWith.exe Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 020202 OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7} OpenWith.exe Set value (str) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:FMTID = "{00000000-0000-0000-0000-000000000000}" OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1092616257" OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings svchost.exe Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 19002f433a5c000000000000000000000000000000000000000000 OpenWith.exe Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff OpenWith.exe Set value (str) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic" OpenWith.exe Key created \Registry\User\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\NotificationData OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1" OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg OpenWith.exe Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff OpenWith.exe Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\NodeSlot = "1" OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByDirection = "1" OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "2" OpenWith.exe Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000009000000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000 OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByDirection = "1" OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\1\NodeSlot = "3" OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU OpenWith.exe Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = ffffffff OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags OpenWith.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ OpenWith.exe Set value (str) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\Shell\SniffedFolderType = "Generic" OpenWith.exe Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\1 = 56003100000000006e5a7575100057696e646f777300400009000400efbec5522d60775a68322e000000a6050000000001000000000000000000000000000000c3d37900570069006e0064006f0077007300000016000000 OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3 OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1092616257" OpenWith.exe Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000 OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\LogicalViewMode = "1" OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\IconSize = "16" OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:PID = "0" OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByDirection = "1" OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\LogicalViewMode = "1" OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2 OpenWith.exe Set value (str) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\Shell\SniffedFolderType = "Generic" OpenWith.exe Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000 OpenWith.exe Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\ColInfo = 00000000000000000000000000000000fddfdffd100000000000000000000000040000001800000030f125b7ef471a10a5f102608c9eebac0a0000001001000030f125b7ef471a10a5f102608c9eebac0e0000009000000030f125b7ef471a10a5f102608c9eebac040000007800000030f125b7ef471a10a5f102608c9eebac0c00000050000000 OpenWith.exe Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ OpenWith.exe Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Sort = 000000000000000000000000000000000100000030f125b7ef471a10a5f102608c9eebac0a00000001000000 OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\Mode = "4" OpenWith.exe Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000 OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 OpenWith.exe Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupView = "0" OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\FFlags = "1" OpenWith.exe Set value (data) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\1\MRUListEx = ffffffff OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\Shell OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:PID = "0" OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\LogicalViewMode = "1" OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\2\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupByKey:PID = "0" OpenWith.exe Set value (int) \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\3\ComDlg\{5C4F28B5-F869-4E84-8E60-F11DB97C5CC7}\GroupView = "0" OpenWith.exe Key created \REGISTRY\USER\S-1-5-21-3920535620-1286624088-2946613906-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 OpenWith.exe -
Opens file in notepad (likely ransom note) 2 IoCs
pid Process 4268 NOTEPAD.EXE 4416 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 3864 yea.exe 3488 svchost.exe -
Suspicious behavior: EnumeratesProcesses 40 IoCs
pid Process 3864 yea.exe 3864 yea.exe 3864 yea.exe 3864 yea.exe 3864 yea.exe 3864 yea.exe 3864 yea.exe 3864 yea.exe 3864 yea.exe 3864 yea.exe 3864 yea.exe 3864 yea.exe 3864 yea.exe 3864 yea.exe 3864 yea.exe 3864 yea.exe 3864 yea.exe 3864 yea.exe 3864 yea.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe 3488 svchost.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 5588 OpenWith.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 3864 yea.exe Token: SeDebugPrivilege 3488 svchost.exe Token: SeBackupPrivilege 1900 vssvc.exe Token: SeRestorePrivilege 1900 vssvc.exe Token: SeAuditPrivilege 1900 vssvc.exe Token: SeIncreaseQuotaPrivilege 2336 WMIC.exe Token: SeSecurityPrivilege 2336 WMIC.exe Token: SeTakeOwnershipPrivilege 2336 WMIC.exe Token: SeLoadDriverPrivilege 2336 WMIC.exe Token: SeSystemProfilePrivilege 2336 WMIC.exe Token: SeSystemtimePrivilege 2336 WMIC.exe Token: SeProfSingleProcessPrivilege 2336 WMIC.exe Token: SeIncBasePriorityPrivilege 2336 WMIC.exe Token: SeCreatePagefilePrivilege 2336 WMIC.exe Token: SeBackupPrivilege 2336 WMIC.exe Token: SeRestorePrivilege 2336 WMIC.exe Token: SeShutdownPrivilege 2336 WMIC.exe Token: SeDebugPrivilege 2336 WMIC.exe Token: SeSystemEnvironmentPrivilege 2336 WMIC.exe Token: SeRemoteShutdownPrivilege 2336 WMIC.exe Token: SeUndockPrivilege 2336 WMIC.exe Token: SeManageVolumePrivilege 2336 WMIC.exe Token: 33 2336 WMIC.exe Token: 34 2336 WMIC.exe Token: 35 2336 WMIC.exe Token: 36 2336 WMIC.exe Token: SeIncreaseQuotaPrivilege 2336 WMIC.exe Token: SeSecurityPrivilege 2336 WMIC.exe Token: SeTakeOwnershipPrivilege 2336 WMIC.exe Token: SeLoadDriverPrivilege 2336 WMIC.exe Token: SeSystemProfilePrivilege 2336 WMIC.exe Token: SeSystemtimePrivilege 2336 WMIC.exe Token: SeProfSingleProcessPrivilege 2336 WMIC.exe Token: SeIncBasePriorityPrivilege 2336 WMIC.exe Token: SeCreatePagefilePrivilege 2336 WMIC.exe Token: SeBackupPrivilege 2336 WMIC.exe Token: SeRestorePrivilege 2336 WMIC.exe Token: SeShutdownPrivilege 2336 WMIC.exe Token: SeDebugPrivilege 2336 WMIC.exe Token: SeSystemEnvironmentPrivilege 2336 WMIC.exe Token: SeRemoteShutdownPrivilege 2336 WMIC.exe Token: SeUndockPrivilege 2336 WMIC.exe Token: SeManageVolumePrivilege 2336 WMIC.exe Token: 33 2336 WMIC.exe Token: 34 2336 WMIC.exe Token: 35 2336 WMIC.exe Token: 36 2336 WMIC.exe Token: SeBackupPrivilege 3076 wbengine.exe Token: SeRestorePrivilege 3076 wbengine.exe Token: SeSecurityPrivilege 3076 wbengine.exe -
Suspicious use of SetWindowsHookEx 18 IoCs
pid Process 5588 OpenWith.exe 5588 OpenWith.exe 5588 OpenWith.exe 5588 OpenWith.exe 5588 OpenWith.exe 5588 OpenWith.exe 5588 OpenWith.exe 5588 OpenWith.exe 5588 OpenWith.exe 5588 OpenWith.exe 5588 OpenWith.exe 5588 OpenWith.exe 5588 OpenWith.exe 5588 OpenWith.exe 5588 OpenWith.exe 5588 OpenWith.exe 5588 OpenWith.exe 5588 OpenWith.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 3864 wrote to memory of 3488 3864 yea.exe 83 PID 3864 wrote to memory of 3488 3864 yea.exe 83 PID 3488 wrote to memory of 3668 3488 svchost.exe 85 PID 3488 wrote to memory of 3668 3488 svchost.exe 85 PID 3668 wrote to memory of 408 3668 cmd.exe 87 PID 3668 wrote to memory of 408 3668 cmd.exe 87 PID 3668 wrote to memory of 2336 3668 cmd.exe 90 PID 3668 wrote to memory of 2336 3668 cmd.exe 90 PID 3488 wrote to memory of 4280 3488 svchost.exe 92 PID 3488 wrote to memory of 4280 3488 svchost.exe 92 PID 4280 wrote to memory of 5600 4280 cmd.exe 94 PID 4280 wrote to memory of 5600 4280 cmd.exe 94 PID 4280 wrote to memory of 3368 4280 cmd.exe 95 PID 4280 wrote to memory of 3368 4280 cmd.exe 95 PID 3488 wrote to memory of 3212 3488 svchost.exe 96 PID 3488 wrote to memory of 3212 3488 svchost.exe 96 PID 3212 wrote to memory of 5400 3212 cmd.exe 98 PID 3212 wrote to memory of 5400 3212 cmd.exe 98 PID 3488 wrote to memory of 4268 3488 svchost.exe 103 PID 3488 wrote to memory of 4268 3488 svchost.exe 103 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
-
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\yea.exe"C:\Users\Admin\AppData\Local\Temp\yea.exe"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3864 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops desktop.ini file(s)
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3488 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:3668 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:408
-
-
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2336
-
-
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no3⤵
- Suspicious use of WriteProcessMemory
PID:4280 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:5600
-
-
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:3368
-
-
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:3212 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:5400
-
-
-
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt3⤵
- Opens file in notepad (likely ransom note)
PID:4268
-
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1900
-
C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3076
-
C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2108
-
C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:2264
-
C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:5588
-
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\read_it.txt1⤵
- Opens file in notepad (likely ransom note)
PID:4416
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Direct Volume Access
1Indicator Removal
3File Deletion
3Modify Registry
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
582B
MD5ed5cc52876db869de48a4783069c2a5e
SHA1a9d51ceaeff715ace430f9462ab2ee4e7f33e70e
SHA25645726f2f29967ef016f8d556fb6468a577307d67388cc4530295a9ca10fdfa36
SHA5121745aefb9b4db4cdd7c08ee3a7d133db08f35a336fd18b598211519b481ef25ac84a3e8a3da3db06caef9f531288d1cf0ca8d4b2560637945e7953e8b45421f5
-
Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0
-
Filesize
1KB
MD5b4e91d2e5f40d5e2586a86cf3bb4df24
SHA131920b3a41aa4400d4a0230a7622848789b38672
SHA2565d8af3c7519874ed42a0d74ee559ae30d9cc6930aef213079347e2b47092c210
SHA512968751b79a98961f145de48d425ea820fd1875bae79a725adf35fc8f4706c103ee0c7babd4838166d8a0dda9fbce3728c0265a04c4b37f335ec4eaa110a2b319
-
Filesize
27KB
MD5d0fedfe9df8f5440847a57e531262e0e
SHA178ffb5eaa655ba8d4e7f869d012f347a07d1eaa6
SHA256fbc39e38d112f99731151a8e2dc19765cdc18150109064c0df6f6a61bbbdf4e5
SHA51294941cbd9dd1ca3aef125ae502368a5bf9f8a193662f621e12736047db1b31b9b09646b48e4a3a5114da125b22436adb276ff92ebac339269f1084f22c14ecf7