Analysis
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max time kernel
78s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
05/03/2023, 08:06
Behavioral task
behavioral1
Sample
2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe
Resource
win10v2004-20230220-en
General
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Target
2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe
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Size
458KB
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MD5
72ea584eebe5705ea1fd5a02dbfe86a1
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SHA1
f6d6cdef7eb41e9c201ee52832036bd8a68d0e44
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SHA256
ed12ea76d03b8255f361975cebd5c579491dacc60c52e03373e7bf509523820a
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SHA512
e928592dd7061388957c3f1acc82dfd8e105de486e8cbd4835029f7d302f71dcdcb8d9dfd0b2a5b53fbd2679dcc6f8559487e1e5767d26431fc67348d1f4ab08
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SSDEEP
12288:GJaHnpS22Yh6Nesa6rZvvihw61SLQkY5Pa1uLkB3gE88uY2:DpSosXaYhVZVMVm2
Malware Config
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 4 IoCs
resource yara_rule behavioral2/memory/1428-133-0x00000000005F0000-0x0000000000668000-memory.dmp family_chaos behavioral2/files/0x000100000002310a-137.dat family_chaos behavioral2/files/0x000100000002310a-143.dat family_chaos behavioral2/files/0x000100000002310a-145.dat family_chaos -
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 1460 bcdedit.exe 4860 bcdedit.exe -
pid Process 4552 wbadmin.exe -
Modifies extensions of user files 5 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\StartAdd.tif => C:\Users\Admin\Pictures\StartAdd.tif.y5ed windows64.exe File renamed C:\Users\Admin\Pictures\UnblockExit.raw => C:\Users\Admin\Pictures\UnblockExit.raw.sk9r windows64.exe File renamed C:\Users\Admin\Pictures\ConnectDeny.tif => C:\Users\Admin\Pictures\ConnectDeny.tif.86ao windows64.exe File renamed C:\Users\Admin\Pictures\DenyGet.png => C:\Users\Admin\Pictures\DenyGet.png.cua4 windows64.exe File renamed C:\Users\Admin\Pictures\GroupSwitch.raw => C:\Users\Admin\Pictures\GroupSwitch.raw.mkir windows64.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-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation windows64.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\windows64.url windows64.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini windows64.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\czytaj_to.txt windows64.exe -
Executes dropped EXE 1 IoCs
pid Process 4972 windows64.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) 33 IoCs
description ioc Process File opened for modification C:\Users\Admin\Links\desktop.ini windows64.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini windows64.exe File opened for modification C:\Users\Public\Pictures\desktop.ini windows64.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini windows64.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini windows64.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini windows64.exe File opened for modification C:\Users\Public\Videos\desktop.ini windows64.exe File opened for modification C:\Users\Public\Desktop\desktop.ini windows64.exe File opened for modification C:\Users\Admin\Documents\desktop.ini windows64.exe File opened for modification C:\Users\Admin\Searches\desktop.ini windows64.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini windows64.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini windows64.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini windows64.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini windows64.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini windows64.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini windows64.exe File opened for modification C:\Users\Admin\Videos\desktop.ini windows64.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini windows64.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini windows64.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini windows64.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini windows64.exe File opened for modification C:\Users\Admin\Music\desktop.ini windows64.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini windows64.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini windows64.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini windows64.exe File opened for modification C:\Users\Public\Music\desktop.ini windows64.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini windows64.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini windows64.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini windows64.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini windows64.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini windows64.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini windows64.exe File opened for modification C:\Users\Public\Documents\desktop.ini windows64.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\kush98br3.jpg" windows64.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 vds.exe 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 -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 1276 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000_Classes\Local Settings windows64.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 920 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4972 windows64.exe -
Suspicious behavior: EnumeratesProcesses 50 IoCs
pid Process 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe 4972 windows64.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe Token: SeDebugPrivilege 4972 windows64.exe Token: SeBackupPrivilege 2592 vssvc.exe Token: SeRestorePrivilege 2592 vssvc.exe Token: SeAuditPrivilege 2592 vssvc.exe Token: SeIncreaseQuotaPrivilege 5000 WMIC.exe Token: SeSecurityPrivilege 5000 WMIC.exe Token: SeTakeOwnershipPrivilege 5000 WMIC.exe Token: SeLoadDriverPrivilege 5000 WMIC.exe Token: SeSystemProfilePrivilege 5000 WMIC.exe Token: SeSystemtimePrivilege 5000 WMIC.exe Token: SeProfSingleProcessPrivilege 5000 WMIC.exe Token: SeIncBasePriorityPrivilege 5000 WMIC.exe Token: SeCreatePagefilePrivilege 5000 WMIC.exe Token: SeBackupPrivilege 5000 WMIC.exe Token: SeRestorePrivilege 5000 WMIC.exe Token: SeShutdownPrivilege 5000 WMIC.exe Token: SeDebugPrivilege 5000 WMIC.exe Token: SeSystemEnvironmentPrivilege 5000 WMIC.exe Token: SeRemoteShutdownPrivilege 5000 WMIC.exe Token: SeUndockPrivilege 5000 WMIC.exe Token: SeManageVolumePrivilege 5000 WMIC.exe Token: 33 5000 WMIC.exe Token: 34 5000 WMIC.exe Token: 35 5000 WMIC.exe Token: 36 5000 WMIC.exe Token: SeIncreaseQuotaPrivilege 5000 WMIC.exe Token: SeSecurityPrivilege 5000 WMIC.exe Token: SeTakeOwnershipPrivilege 5000 WMIC.exe Token: SeLoadDriverPrivilege 5000 WMIC.exe Token: SeSystemProfilePrivilege 5000 WMIC.exe Token: SeSystemtimePrivilege 5000 WMIC.exe Token: SeProfSingleProcessPrivilege 5000 WMIC.exe Token: SeIncBasePriorityPrivilege 5000 WMIC.exe Token: SeCreatePagefilePrivilege 5000 WMIC.exe Token: SeBackupPrivilege 5000 WMIC.exe Token: SeRestorePrivilege 5000 WMIC.exe Token: SeShutdownPrivilege 5000 WMIC.exe Token: SeDebugPrivilege 5000 WMIC.exe Token: SeSystemEnvironmentPrivilege 5000 WMIC.exe Token: SeRemoteShutdownPrivilege 5000 WMIC.exe Token: SeUndockPrivilege 5000 WMIC.exe Token: SeManageVolumePrivilege 5000 WMIC.exe Token: 33 5000 WMIC.exe Token: 34 5000 WMIC.exe Token: 35 5000 WMIC.exe Token: 36 5000 WMIC.exe Token: SeBackupPrivilege 2356 wbengine.exe Token: SeRestorePrivilege 2356 wbengine.exe Token: SeSecurityPrivilege 2356 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 1428 wrote to memory of 4972 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 90 PID 1428 wrote to memory of 4972 1428 2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe 90 PID 4972 wrote to memory of 5008 4972 windows64.exe 100 PID 4972 wrote to memory of 5008 4972 windows64.exe 100 PID 5008 wrote to memory of 1276 5008 cmd.exe 102 PID 5008 wrote to memory of 1276 5008 cmd.exe 102 PID 5008 wrote to memory of 5000 5008 cmd.exe 105 PID 5008 wrote to memory of 5000 5008 cmd.exe 105 PID 4972 wrote to memory of 1500 4972 windows64.exe 106 PID 4972 wrote to memory of 1500 4972 windows64.exe 106 PID 1500 wrote to memory of 1460 1500 cmd.exe 108 PID 1500 wrote to memory of 1460 1500 cmd.exe 108 PID 1500 wrote to memory of 4860 1500 cmd.exe 109 PID 1500 wrote to memory of 4860 1500 cmd.exe 109 PID 4972 wrote to memory of 1448 4972 windows64.exe 110 PID 4972 wrote to memory of 1448 4972 windows64.exe 110 PID 1448 wrote to memory of 4552 1448 cmd.exe 112 PID 1448 wrote to memory of 4552 1448 cmd.exe 112 PID 4972 wrote to memory of 920 4972 windows64.exe 116 PID 4972 wrote to memory of 920 4972 windows64.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\2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2023-03-04_72ea584eebe5705ea1fd5a02dbfe86a1_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1428 -
C:\Users\Admin\AppData\Roaming\windows64.exe"C:\Users\Admin\AppData\Roaming\windows64.exe"2⤵
- Modifies extensions of user files
- 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:4972 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:5008 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:1276
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:5000
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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:1500 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1460
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:4860
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1448 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:4552
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\czytaj_to.txt3⤵
- Opens file in notepad (likely ransom note)
PID:920
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2592
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2356
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:4112
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:3432
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
591B
MD5b2fd1728b964abbf390a9e7bcef59fee
SHA19f5da0e46e72a2943a1a3f181b7c891164704120
SHA256ce781cb3b8b9bc5c31a6a1aeeb80e73e9f90fa86e96e66e96a2790f47bb517b3
SHA5128455f7e21489ccd2ed6ffaf69171193c3176d389b89fc64450b5ba1c2817b3797df9de5a7749f677a44bf9146ce01d26c574637bb9678c0bde7953f1cdf6b26f
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Filesize
458KB
MD572ea584eebe5705ea1fd5a02dbfe86a1
SHA1f6d6cdef7eb41e9c201ee52832036bd8a68d0e44
SHA256ed12ea76d03b8255f361975cebd5c579491dacc60c52e03373e7bf509523820a
SHA512e928592dd7061388957c3f1acc82dfd8e105de486e8cbd4835029f7d302f71dcdcb8d9dfd0b2a5b53fbd2679dcc6f8559487e1e5767d26431fc67348d1f4ab08
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Filesize
458KB
MD572ea584eebe5705ea1fd5a02dbfe86a1
SHA1f6d6cdef7eb41e9c201ee52832036bd8a68d0e44
SHA256ed12ea76d03b8255f361975cebd5c579491dacc60c52e03373e7bf509523820a
SHA512e928592dd7061388957c3f1acc82dfd8e105de486e8cbd4835029f7d302f71dcdcb8d9dfd0b2a5b53fbd2679dcc6f8559487e1e5767d26431fc67348d1f4ab08
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Filesize
458KB
MD572ea584eebe5705ea1fd5a02dbfe86a1
SHA1f6d6cdef7eb41e9c201ee52832036bd8a68d0e44
SHA256ed12ea76d03b8255f361975cebd5c579491dacc60c52e03373e7bf509523820a
SHA512e928592dd7061388957c3f1acc82dfd8e105de486e8cbd4835029f7d302f71dcdcb8d9dfd0b2a5b53fbd2679dcc6f8559487e1e5767d26431fc67348d1f4ab08
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Filesize
591B
MD5b2fd1728b964abbf390a9e7bcef59fee
SHA19f5da0e46e72a2943a1a3f181b7c891164704120
SHA256ce781cb3b8b9bc5c31a6a1aeeb80e73e9f90fa86e96e66e96a2790f47bb517b3
SHA5128455f7e21489ccd2ed6ffaf69171193c3176d389b89fc64450b5ba1c2817b3797df9de5a7749f677a44bf9146ce01d26c574637bb9678c0bde7953f1cdf6b26f