Analysis
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max time kernel
81s -
max time network
102s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system -
submitted
17-03-2023 04:24
Behavioral task
behavioral1
Sample
2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe
Resource
win10v2004-20230221-en
General
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Target
2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe
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Size
238KB
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MD5
80588ef251b3ebaa3da89fece7dd9743
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SHA1
8e9cadf5793282e9c3127b0c6de07960fe087711
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SHA256
f4a5aa80ca26fec66638d8d42d54bf261580b8a2d6a664cf74dd47028bfe20a8
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SHA512
c0a3c0838fb06584abf877d60a483577ce3a3f9af99d8028662f507c6b7f2c9545b5462072cc2ba72a699b047fc107396df7f3ceae209ee72c2b987506ad6b1f
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SSDEEP
3072:NoMYir9nL9z3+wdSe1WcBRjpW5VFMNBDf5qIS/QWqGiUEJhREVUAISsdWBYf7DSc:1r9nLhxhdsVFGEeRJk8nrKfQC
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/1272-133-0x00000000002E0000-0x0000000000322000-memory.dmp family_chaos behavioral2/files/0x0007000000023168-138.dat family_chaos behavioral2/files/0x0007000000023168-143.dat family_chaos behavioral2/files/0x0007000000023168-144.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 5016 bcdedit.exe 1528 bcdedit.exe -
pid Process 1776 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\ConvertUndo.tif => C:\Users\Admin\Pictures\ConvertUndo.tif.TuRkEy svchost.exe File renamed C:\Users\Admin\Pictures\NewStart.png => C:\Users\Admin\Pictures\NewStart.png.TuRkEy svchost.exe File renamed C:\Users\Admin\Pictures\NewTest.tif => C:\Users\Admin\Pictures\NewTest.tif.TuRkEy svchost.exe File renamed C:\Users\Admin\Pictures\RegisterExpand.raw => C:\Users\Admin\Pictures\RegisterExpand.raw.TuRkEy svchost.exe File renamed C:\Users\Admin\Pictures\UninstallEnable.tif => C:\Users\Admin\Pictures\UninstallEnable.tif.TuRkEy svchost.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-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\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\Instruction.txt svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1932 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\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\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\Videos\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\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\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\Windows\Recent\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\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\Pictures\Saved Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\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\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\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\Start Menu\Programs\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\Pictures\Camera Roll\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\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\Saved Games\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\SendTo\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-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\v60sknceg.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 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 3980 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 1824 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1932 svchost.exe -
Suspicious behavior: EnumeratesProcesses 55 IoCs
pid Process 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe 1932 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe Token: SeDebugPrivilege 1932 svchost.exe Token: SeBackupPrivilege 1780 vssvc.exe Token: SeRestorePrivilege 1780 vssvc.exe Token: SeAuditPrivilege 1780 vssvc.exe Token: SeIncreaseQuotaPrivilege 2272 WMIC.exe Token: SeSecurityPrivilege 2272 WMIC.exe Token: SeTakeOwnershipPrivilege 2272 WMIC.exe Token: SeLoadDriverPrivilege 2272 WMIC.exe Token: SeSystemProfilePrivilege 2272 WMIC.exe Token: SeSystemtimePrivilege 2272 WMIC.exe Token: SeProfSingleProcessPrivilege 2272 WMIC.exe Token: SeIncBasePriorityPrivilege 2272 WMIC.exe Token: SeCreatePagefilePrivilege 2272 WMIC.exe Token: SeBackupPrivilege 2272 WMIC.exe Token: SeRestorePrivilege 2272 WMIC.exe Token: SeShutdownPrivilege 2272 WMIC.exe Token: SeDebugPrivilege 2272 WMIC.exe Token: SeSystemEnvironmentPrivilege 2272 WMIC.exe Token: SeRemoteShutdownPrivilege 2272 WMIC.exe Token: SeUndockPrivilege 2272 WMIC.exe Token: SeManageVolumePrivilege 2272 WMIC.exe Token: 33 2272 WMIC.exe Token: 34 2272 WMIC.exe Token: 35 2272 WMIC.exe Token: 36 2272 WMIC.exe Token: SeIncreaseQuotaPrivilege 2272 WMIC.exe Token: SeSecurityPrivilege 2272 WMIC.exe Token: SeTakeOwnershipPrivilege 2272 WMIC.exe Token: SeLoadDriverPrivilege 2272 WMIC.exe Token: SeSystemProfilePrivilege 2272 WMIC.exe Token: SeSystemtimePrivilege 2272 WMIC.exe Token: SeProfSingleProcessPrivilege 2272 WMIC.exe Token: SeIncBasePriorityPrivilege 2272 WMIC.exe Token: SeCreatePagefilePrivilege 2272 WMIC.exe Token: SeBackupPrivilege 2272 WMIC.exe Token: SeRestorePrivilege 2272 WMIC.exe Token: SeShutdownPrivilege 2272 WMIC.exe Token: SeDebugPrivilege 2272 WMIC.exe Token: SeSystemEnvironmentPrivilege 2272 WMIC.exe Token: SeRemoteShutdownPrivilege 2272 WMIC.exe Token: SeUndockPrivilege 2272 WMIC.exe Token: SeManageVolumePrivilege 2272 WMIC.exe Token: 33 2272 WMIC.exe Token: 34 2272 WMIC.exe Token: 35 2272 WMIC.exe Token: 36 2272 WMIC.exe Token: SeBackupPrivilege 4760 wbengine.exe Token: SeRestorePrivilege 4760 wbengine.exe Token: SeSecurityPrivilege 4760 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 1272 wrote to memory of 1932 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 86 PID 1272 wrote to memory of 1932 1272 2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe 86 PID 1932 wrote to memory of 1160 1932 svchost.exe 94 PID 1932 wrote to memory of 1160 1932 svchost.exe 94 PID 1160 wrote to memory of 3980 1160 cmd.exe 96 PID 1160 wrote to memory of 3980 1160 cmd.exe 96 PID 1160 wrote to memory of 2272 1160 cmd.exe 100 PID 1160 wrote to memory of 2272 1160 cmd.exe 100 PID 1932 wrote to memory of 3840 1932 svchost.exe 101 PID 1932 wrote to memory of 3840 1932 svchost.exe 101 PID 3840 wrote to memory of 5016 3840 cmd.exe 103 PID 3840 wrote to memory of 5016 3840 cmd.exe 103 PID 3840 wrote to memory of 1528 3840 cmd.exe 104 PID 3840 wrote to memory of 1528 3840 cmd.exe 104 PID 1932 wrote to memory of 4716 1932 svchost.exe 105 PID 1932 wrote to memory of 4716 1932 svchost.exe 105 PID 4716 wrote to memory of 1776 4716 cmd.exe 107 PID 4716 wrote to memory of 1776 4716 cmd.exe 107 PID 1932 wrote to memory of 1824 1932 svchost.exe 111 PID 1932 wrote to memory of 1824 1932 svchost.exe 111 -
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\2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2023-03-16_80588ef251b3ebaa3da89fece7dd9743_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1272 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.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:1932 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:1160 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:3980
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2272
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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:3840 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:5016
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1528
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:4716 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1776
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\Instruction.txt3⤵
- Opens file in notepad (likely ransom note)
PID:1824
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1780
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4760
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:4420
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:3144
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
950B
MD54994c8b847fd4a18d29d61c91b8ad55d
SHA13ae3975e5f89d4c2fdaed33d53e32e53e04aef4c
SHA256c30c92f3434b6f4c6174a0cbda1967c09afff3077bcba22f63232b66f330b16f
SHA51207c5a188d4c9209562777cdb07df971a41f29b49511434d91b05f0846e9960a1402c11336d1e0ee5eed770217010b602eb358ee2e64eb3c0a5146a1d2a034f8f
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Filesize
238KB
MD580588ef251b3ebaa3da89fece7dd9743
SHA18e9cadf5793282e9c3127b0c6de07960fe087711
SHA256f4a5aa80ca26fec66638d8d42d54bf261580b8a2d6a664cf74dd47028bfe20a8
SHA512c0a3c0838fb06584abf877d60a483577ce3a3f9af99d8028662f507c6b7f2c9545b5462072cc2ba72a699b047fc107396df7f3ceae209ee72c2b987506ad6b1f
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Filesize
238KB
MD580588ef251b3ebaa3da89fece7dd9743
SHA18e9cadf5793282e9c3127b0c6de07960fe087711
SHA256f4a5aa80ca26fec66638d8d42d54bf261580b8a2d6a664cf74dd47028bfe20a8
SHA512c0a3c0838fb06584abf877d60a483577ce3a3f9af99d8028662f507c6b7f2c9545b5462072cc2ba72a699b047fc107396df7f3ceae209ee72c2b987506ad6b1f
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Filesize
238KB
MD580588ef251b3ebaa3da89fece7dd9743
SHA18e9cadf5793282e9c3127b0c6de07960fe087711
SHA256f4a5aa80ca26fec66638d8d42d54bf261580b8a2d6a664cf74dd47028bfe20a8
SHA512c0a3c0838fb06584abf877d60a483577ce3a3f9af99d8028662f507c6b7f2c9545b5462072cc2ba72a699b047fc107396df7f3ceae209ee72c2b987506ad6b1f
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Filesize
950B
MD54994c8b847fd4a18d29d61c91b8ad55d
SHA13ae3975e5f89d4c2fdaed33d53e32e53e04aef4c
SHA256c30c92f3434b6f4c6174a0cbda1967c09afff3077bcba22f63232b66f330b16f
SHA51207c5a188d4c9209562777cdb07df971a41f29b49511434d91b05f0846e9960a1402c11336d1e0ee5eed770217010b602eb358ee2e64eb3c0a5146a1d2a034f8f