Analysis
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max time kernel
146s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
03/02/2023, 07:42
Behavioral task
behavioral1
Sample
2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe
Resource
win7-20221111-en
windows7-x64
18 signatures
150 seconds
Behavioral task
behavioral2
Sample
2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
20 signatures
150 seconds
General
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Target
2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe
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Size
517KB
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MD5
71c3a6f87a5c67593fd199a0fbc146bf
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SHA1
30dd047751e21b57f6c08a56b21580f44dd9f437
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SHA256
98e6fe0dfa72dfd322bfbddc7bdd6813f339fc3d88bccb2dbc2ed6cb487b90e4
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SHA512
21a5c616b8b9455409a76496bb91b131921018685d6de7f8b92712bcf7f1b8043049ae5591875c27d4ec04b52fd4be5931e70afb7b571b4b6302ec6cda2bf848
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SSDEEP
12288:Xw9Rt0RPnRrcA0Sqg9bIFX7O5rBVOxZ3:0aVDbI5Or4
Score
10/10
Malware Config
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 3 IoCs
resource yara_rule behavioral2/memory/836-132-0x0000000000850000-0x00000000008D8000-memory.dmp family_chaos behavioral2/files/0x0006000000023161-135.dat family_chaos behavioral2/files/0x0006000000023161-136.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 4896 bcdedit.exe 912 bcdedit.exe -
pid Process 3716 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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\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 2268 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) 33 IoCs
description ioc Process File opened for modification C:\Users\Admin\Pictures\Camera Roll\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\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\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\Internet Explorer\Quick Launch\User Pinned\TaskBar\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\Pictures\Saved Pictures\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\SendTo\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\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\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\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\Recent\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\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\Admin\Documents\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\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\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\Libraries\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\Public\Documents\desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\p30a0ofk4.jpg" svchost.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 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 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 -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 452 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2840 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2268 svchost.exe -
Suspicious behavior: EnumeratesProcesses 49 IoCs
pid Process 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe 2268 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe Token: SeDebugPrivilege 2268 svchost.exe Token: SeBackupPrivilege 3728 vssvc.exe Token: SeRestorePrivilege 3728 vssvc.exe Token: SeAuditPrivilege 3728 vssvc.exe Token: SeIncreaseQuotaPrivilege 2356 WMIC.exe Token: SeSecurityPrivilege 2356 WMIC.exe Token: SeTakeOwnershipPrivilege 2356 WMIC.exe Token: SeLoadDriverPrivilege 2356 WMIC.exe Token: SeSystemProfilePrivilege 2356 WMIC.exe Token: SeSystemtimePrivilege 2356 WMIC.exe Token: SeProfSingleProcessPrivilege 2356 WMIC.exe Token: SeIncBasePriorityPrivilege 2356 WMIC.exe Token: SeCreatePagefilePrivilege 2356 WMIC.exe Token: SeBackupPrivilege 2356 WMIC.exe Token: SeRestorePrivilege 2356 WMIC.exe Token: SeShutdownPrivilege 2356 WMIC.exe Token: SeDebugPrivilege 2356 WMIC.exe Token: SeSystemEnvironmentPrivilege 2356 WMIC.exe Token: SeRemoteShutdownPrivilege 2356 WMIC.exe Token: SeUndockPrivilege 2356 WMIC.exe Token: SeManageVolumePrivilege 2356 WMIC.exe Token: 33 2356 WMIC.exe Token: 34 2356 WMIC.exe Token: 35 2356 WMIC.exe Token: 36 2356 WMIC.exe Token: SeIncreaseQuotaPrivilege 2356 WMIC.exe Token: SeSecurityPrivilege 2356 WMIC.exe Token: SeTakeOwnershipPrivilege 2356 WMIC.exe Token: SeLoadDriverPrivilege 2356 WMIC.exe Token: SeSystemProfilePrivilege 2356 WMIC.exe Token: SeSystemtimePrivilege 2356 WMIC.exe Token: SeProfSingleProcessPrivilege 2356 WMIC.exe Token: SeIncBasePriorityPrivilege 2356 WMIC.exe Token: SeCreatePagefilePrivilege 2356 WMIC.exe Token: SeBackupPrivilege 2356 WMIC.exe Token: SeRestorePrivilege 2356 WMIC.exe Token: SeShutdownPrivilege 2356 WMIC.exe Token: SeDebugPrivilege 2356 WMIC.exe Token: SeSystemEnvironmentPrivilege 2356 WMIC.exe Token: SeRemoteShutdownPrivilege 2356 WMIC.exe Token: SeUndockPrivilege 2356 WMIC.exe Token: SeManageVolumePrivilege 2356 WMIC.exe Token: 33 2356 WMIC.exe Token: 34 2356 WMIC.exe Token: 35 2356 WMIC.exe Token: 36 2356 WMIC.exe Token: SeBackupPrivilege 4028 wbengine.exe Token: SeRestorePrivilege 4028 wbengine.exe Token: SeSecurityPrivilege 4028 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 836 wrote to memory of 2268 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 81 PID 836 wrote to memory of 2268 836 2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe 81 PID 2268 wrote to memory of 4388 2268 svchost.exe 83 PID 2268 wrote to memory of 4388 2268 svchost.exe 83 PID 4388 wrote to memory of 452 4388 cmd.exe 85 PID 4388 wrote to memory of 452 4388 cmd.exe 85 PID 4388 wrote to memory of 2356 4388 cmd.exe 88 PID 4388 wrote to memory of 2356 4388 cmd.exe 88 PID 2268 wrote to memory of 928 2268 svchost.exe 89 PID 2268 wrote to memory of 928 2268 svchost.exe 89 PID 928 wrote to memory of 4896 928 cmd.exe 91 PID 928 wrote to memory of 4896 928 cmd.exe 91 PID 928 wrote to memory of 912 928 cmd.exe 92 PID 928 wrote to memory of 912 928 cmd.exe 92 PID 2268 wrote to memory of 4928 2268 svchost.exe 93 PID 2268 wrote to memory of 4928 2268 svchost.exe 93 PID 4928 wrote to memory of 3716 4928 cmd.exe 95 PID 4928 wrote to memory of 3716 4928 cmd.exe 95 PID 2268 wrote to memory of 2840 2268 svchost.exe 99 PID 2268 wrote to memory of 2840 2268 svchost.exe 99
Processes
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C:\Users\Admin\AppData\Local\Temp\2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2023-02-02_71c3a6f87a5c67593fd199a0fbc146bf_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:836 -
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:2268 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:4388 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:452
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2356
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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:928 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:4896
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:912
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:4928 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:3716
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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:2840
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3728
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4028
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:4432
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:5032
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
970B
MD5ffd0ab6d5a16a4ecbca04be23a8f5802
SHA16bb7d382fd273296a0428f4a8e83153548b6e675
SHA256326678574d8eba54ebe47a2c3e9c27e6c93e4e1557f0ef6d6b2ce4eea5d3a24d
SHA512ac78a771132af3a6ab15205c90a869a9f64924782505d58b9fa0d65219216215b02f29cdaa838fc6ee31e4a5feb5f51664c22b427052d0900e6e8e3c38b0b652
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Filesize
517KB
MD571c3a6f87a5c67593fd199a0fbc146bf
SHA130dd047751e21b57f6c08a56b21580f44dd9f437
SHA25698e6fe0dfa72dfd322bfbddc7bdd6813f339fc3d88bccb2dbc2ed6cb487b90e4
SHA51221a5c616b8b9455409a76496bb91b131921018685d6de7f8b92712bcf7f1b8043049ae5591875c27d4ec04b52fd4be5931e70afb7b571b4b6302ec6cda2bf848
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Filesize
517KB
MD571c3a6f87a5c67593fd199a0fbc146bf
SHA130dd047751e21b57f6c08a56b21580f44dd9f437
SHA25698e6fe0dfa72dfd322bfbddc7bdd6813f339fc3d88bccb2dbc2ed6cb487b90e4
SHA51221a5c616b8b9455409a76496bb91b131921018685d6de7f8b92712bcf7f1b8043049ae5591875c27d4ec04b52fd4be5931e70afb7b571b4b6302ec6cda2bf848