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Analysis
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max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
20/03/2024, 08:42
Behavioral task
behavioral1
Sample
2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe
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Size
664KB
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MD5
12b458301d7cd8f7f1536a62efda148e
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SHA1
60fef33fc40f7afbd23472a3c9c25e639b3122af
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SHA256
c6729eb170a6209a351d4a8d99efe0bd7848d08d5ac9cb086f1d8bad625dbc7a
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SHA512
239b524217f0e8aa80c4f339ba22692b3b1f06e61182cf8dcbc3e9e6dac02c418bf45c4d88c3ae7e12fb0ee1f5b808accf9fe11177161b5982915fb9373d2417
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SSDEEP
12288:Hb4yFHDU7hOYN/W3o3HOKBxWNDc6hCKvaSMSVupdDp0tbtYcOoIlPj3rw/F/F56q:HZ8N8K3Wq6CS8WGogAeU5+6NA2
Malware Config
Extracted
C:\Users\Admin\Documents\read_it.txt
chaos
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 2 IoCs
resource yara_rule behavioral2/memory/4584-0-0x0000000000AA0000-0x0000000000B4C000-memory.dmp family_chaos behavioral2/files/0x000900000002313a-6.dat family_chaos -
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Detects command variations typically used by ransomware 2 IoCs
resource yara_rule behavioral2/memory/4584-0-0x0000000000AA0000-0x0000000000B4C000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral2/files/0x000900000002313a-6.dat INDICATOR_SUSPICIOUS_GENRansomware -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 4044 bcdedit.exe 2912 bcdedit.exe -
Renames multiple (177) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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pid Process 2516 wbadmin.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation svchost.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url svchost.exe 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 4956 svchost.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 34 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\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\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\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\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-983155329-280873152-1838004294-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\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\Public\Documents\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\Start Menu\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\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\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\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\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\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\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\Start Menu\Programs\Accessories\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fjyjfn0og.jpg" svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName vds.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_DADY_DVD-ROM\4&215468A5&0&010000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\FriendlyName vds.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 vds.exe -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2608 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 3544 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4956 svchost.exe -
Suspicious behavior: EnumeratesProcesses 49 IoCs
pid Process 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe 4956 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe Token: SeDebugPrivilege 4956 svchost.exe Token: SeBackupPrivilege 4828 vssvc.exe Token: SeRestorePrivilege 4828 vssvc.exe Token: SeAuditPrivilege 4828 vssvc.exe Token: SeIncreaseQuotaPrivilege 3868 WMIC.exe Token: SeSecurityPrivilege 3868 WMIC.exe Token: SeTakeOwnershipPrivilege 3868 WMIC.exe Token: SeLoadDriverPrivilege 3868 WMIC.exe Token: SeSystemProfilePrivilege 3868 WMIC.exe Token: SeSystemtimePrivilege 3868 WMIC.exe Token: SeProfSingleProcessPrivilege 3868 WMIC.exe Token: SeIncBasePriorityPrivilege 3868 WMIC.exe Token: SeCreatePagefilePrivilege 3868 WMIC.exe Token: SeBackupPrivilege 3868 WMIC.exe Token: SeRestorePrivilege 3868 WMIC.exe Token: SeShutdownPrivilege 3868 WMIC.exe Token: SeDebugPrivilege 3868 WMIC.exe Token: SeSystemEnvironmentPrivilege 3868 WMIC.exe Token: SeRemoteShutdownPrivilege 3868 WMIC.exe Token: SeUndockPrivilege 3868 WMIC.exe Token: SeManageVolumePrivilege 3868 WMIC.exe Token: 33 3868 WMIC.exe Token: 34 3868 WMIC.exe Token: 35 3868 WMIC.exe Token: 36 3868 WMIC.exe Token: SeIncreaseQuotaPrivilege 3868 WMIC.exe Token: SeSecurityPrivilege 3868 WMIC.exe Token: SeTakeOwnershipPrivilege 3868 WMIC.exe Token: SeLoadDriverPrivilege 3868 WMIC.exe Token: SeSystemProfilePrivilege 3868 WMIC.exe Token: SeSystemtimePrivilege 3868 WMIC.exe Token: SeProfSingleProcessPrivilege 3868 WMIC.exe Token: SeIncBasePriorityPrivilege 3868 WMIC.exe Token: SeCreatePagefilePrivilege 3868 WMIC.exe Token: SeBackupPrivilege 3868 WMIC.exe Token: SeRestorePrivilege 3868 WMIC.exe Token: SeShutdownPrivilege 3868 WMIC.exe Token: SeDebugPrivilege 3868 WMIC.exe Token: SeSystemEnvironmentPrivilege 3868 WMIC.exe Token: SeRemoteShutdownPrivilege 3868 WMIC.exe Token: SeUndockPrivilege 3868 WMIC.exe Token: SeManageVolumePrivilege 3868 WMIC.exe Token: 33 3868 WMIC.exe Token: 34 3868 WMIC.exe Token: 35 3868 WMIC.exe Token: 36 3868 WMIC.exe Token: SeBackupPrivilege 2344 wbengine.exe Token: SeRestorePrivilege 2344 wbengine.exe Token: SeSecurityPrivilege 2344 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 4584 wrote to memory of 4956 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 95 PID 4584 wrote to memory of 4956 4584 2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe 95 PID 4956 wrote to memory of 4224 4956 svchost.exe 100 PID 4956 wrote to memory of 4224 4956 svchost.exe 100 PID 4224 wrote to memory of 2608 4224 cmd.exe 102 PID 4224 wrote to memory of 2608 4224 cmd.exe 102 PID 4224 wrote to memory of 3868 4224 cmd.exe 105 PID 4224 wrote to memory of 3868 4224 cmd.exe 105 PID 4956 wrote to memory of 4900 4956 svchost.exe 106 PID 4956 wrote to memory of 4900 4956 svchost.exe 106 PID 4900 wrote to memory of 4044 4900 cmd.exe 108 PID 4900 wrote to memory of 4044 4900 cmd.exe 108 PID 4900 wrote to memory of 2912 4900 cmd.exe 109 PID 4900 wrote to memory of 2912 4900 cmd.exe 109 PID 4956 wrote to memory of 4440 4956 svchost.exe 110 PID 4956 wrote to memory of 4440 4956 svchost.exe 110 PID 4440 wrote to memory of 2516 4440 cmd.exe 112 PID 4440 wrote to memory of 2516 4440 cmd.exe 112 PID 4956 wrote to memory of 3544 4956 svchost.exe 116 PID 4956 wrote to memory of 3544 4956 svchost.exe 116 -
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.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-20_12b458301d7cd8f7f1536a62efda148e_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4584 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4956 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:4224 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2608
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3868
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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:4900 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:4044
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2912
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:4440 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2516
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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:3544
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4828
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2344
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:4220
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:4420
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
664KB
MD512b458301d7cd8f7f1536a62efda148e
SHA160fef33fc40f7afbd23472a3c9c25e639b3122af
SHA256c6729eb170a6209a351d4a8d99efe0bd7848d08d5ac9cb086f1d8bad625dbc7a
SHA512239b524217f0e8aa80c4f339ba22692b3b1f06e61182cf8dcbc3e9e6dac02c418bf45c4d88c3ae7e12fb0ee1f5b808accf9fe11177161b5982915fb9373d2417
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740