Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
25-08-2024 07:00
Behavioral task
behavioral1
Sample
2024-08-25_be8b5751940eb24ef8b304ab16ea1a7d_destroyer_wannacry.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
2024-08-25_be8b5751940eb24ef8b304ab16ea1a7d_destroyer_wannacry.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-25_be8b5751940eb24ef8b304ab16ea1a7d_destroyer_wannacry.exe
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Size
27KB
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MD5
be8b5751940eb24ef8b304ab16ea1a7d
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SHA1
47b3e2008dce91e137862d6ff63d590ce8dd8592
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SHA256
25bf809aae8ae8f0310afae47af4d9b28124b1ff3d892dd1a40811e89b3706fd
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SHA512
321de3939cdf984bb393f05661c3bb220ee073ff57c55605c13a6cb7213f22e09ddbcb056e863a588116a114a90a8b1039d4e41d4ee2d0293465bd94831a8545
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SSDEEP
384:ztWZPzzxAm1vp5ZRoDNhvLKeOS2NiCXl1Oy5o91NbqjKpB82v5:K7zxAmpfyzeeOSSi+ho9TbqWr82R
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\read_it.txt
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 3 IoCs
resource yara_rule behavioral1/memory/2232-1-0x0000000000DA0000-0x0000000000DAE000-memory.dmp family_chaos behavioral1/files/0x00080000000120fd-5.dat family_chaos behavioral1/memory/2148-8-0x00000000012E0000-0x00000000012EE000-memory.dmp family_chaos -
Deletes shadow copies 3 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 2496 bcdedit.exe 2516 bcdedit.exe -
pid Process 2284 wbadmin.exe -
Disables Task Manager via registry modification
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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 2148 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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000\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\Admin\Favorites\Links\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\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\RZDJXGPT\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\All Users\Microsoft\Windows\Start Menu\Programs\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\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\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\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Public\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\S9N0CICF\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini svchost.exe 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\Public\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\History.IE5\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\Sample Music\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\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-1385883288-3042840365-2734249351-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\OMJP4NJL\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\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\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\DOR6XL06\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Tablet PC\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\0IOH8RGC\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\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\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\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\Administrative Tools\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\Feeds Cache\V77VW23N\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Ringtones\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\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\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\Temporary Internet Files\Content.IE5\L9L28E24\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Recorded TV\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\All Users\Microsoft\Windows\Start Menu\Programs\Games\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\Windows\Recent\desktop.ini svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2440 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2820 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 2232 2024-08-25_be8b5751940eb24ef8b304ab16ea1a7d_destroyer_wannacry.exe 2148 svchost.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2232 2024-08-25_be8b5751940eb24ef8b304ab16ea1a7d_destroyer_wannacry.exe 2232 2024-08-25_be8b5751940eb24ef8b304ab16ea1a7d_destroyer_wannacry.exe 2232 2024-08-25_be8b5751940eb24ef8b304ab16ea1a7d_destroyer_wannacry.exe 2148 svchost.exe 2148 svchost.exe 2148 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2232 2024-08-25_be8b5751940eb24ef8b304ab16ea1a7d_destroyer_wannacry.exe Token: SeDebugPrivilege 2148 svchost.exe Token: SeBackupPrivilege 2960 vssvc.exe Token: SeRestorePrivilege 2960 vssvc.exe Token: SeAuditPrivilege 2960 vssvc.exe Token: SeIncreaseQuotaPrivilege 2152 WMIC.exe Token: SeSecurityPrivilege 2152 WMIC.exe Token: SeTakeOwnershipPrivilege 2152 WMIC.exe Token: SeLoadDriverPrivilege 2152 WMIC.exe Token: SeSystemProfilePrivilege 2152 WMIC.exe Token: SeSystemtimePrivilege 2152 WMIC.exe Token: SeProfSingleProcessPrivilege 2152 WMIC.exe Token: SeIncBasePriorityPrivilege 2152 WMIC.exe Token: SeCreatePagefilePrivilege 2152 WMIC.exe Token: SeBackupPrivilege 2152 WMIC.exe Token: SeRestorePrivilege 2152 WMIC.exe Token: SeShutdownPrivilege 2152 WMIC.exe Token: SeDebugPrivilege 2152 WMIC.exe Token: SeSystemEnvironmentPrivilege 2152 WMIC.exe Token: SeRemoteShutdownPrivilege 2152 WMIC.exe Token: SeUndockPrivilege 2152 WMIC.exe Token: SeManageVolumePrivilege 2152 WMIC.exe Token: 33 2152 WMIC.exe Token: 34 2152 WMIC.exe Token: 35 2152 WMIC.exe Token: SeIncreaseQuotaPrivilege 2152 WMIC.exe Token: SeSecurityPrivilege 2152 WMIC.exe Token: SeTakeOwnershipPrivilege 2152 WMIC.exe Token: SeLoadDriverPrivilege 2152 WMIC.exe Token: SeSystemProfilePrivilege 2152 WMIC.exe Token: SeSystemtimePrivilege 2152 WMIC.exe Token: SeProfSingleProcessPrivilege 2152 WMIC.exe Token: SeIncBasePriorityPrivilege 2152 WMIC.exe Token: SeCreatePagefilePrivilege 2152 WMIC.exe Token: SeBackupPrivilege 2152 WMIC.exe Token: SeRestorePrivilege 2152 WMIC.exe Token: SeShutdownPrivilege 2152 WMIC.exe Token: SeDebugPrivilege 2152 WMIC.exe Token: SeSystemEnvironmentPrivilege 2152 WMIC.exe Token: SeRemoteShutdownPrivilege 2152 WMIC.exe Token: SeUndockPrivilege 2152 WMIC.exe Token: SeManageVolumePrivilege 2152 WMIC.exe Token: 33 2152 WMIC.exe Token: 34 2152 WMIC.exe Token: 35 2152 WMIC.exe Token: SeBackupPrivilege 1380 wbengine.exe Token: SeRestorePrivilege 1380 wbengine.exe Token: SeSecurityPrivilege 1380 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2232 wrote to memory of 2148 2232 2024-08-25_be8b5751940eb24ef8b304ab16ea1a7d_destroyer_wannacry.exe 28 PID 2232 wrote to memory of 2148 2232 2024-08-25_be8b5751940eb24ef8b304ab16ea1a7d_destroyer_wannacry.exe 28 PID 2232 wrote to memory of 2148 2232 2024-08-25_be8b5751940eb24ef8b304ab16ea1a7d_destroyer_wannacry.exe 28 PID 2148 wrote to memory of 1644 2148 svchost.exe 29 PID 2148 wrote to memory of 1644 2148 svchost.exe 29 PID 2148 wrote to memory of 1644 2148 svchost.exe 29 PID 1644 wrote to memory of 2440 1644 cmd.exe 31 PID 1644 wrote to memory of 2440 1644 cmd.exe 31 PID 1644 wrote to memory of 2440 1644 cmd.exe 31 PID 1644 wrote to memory of 2152 1644 cmd.exe 34 PID 1644 wrote to memory of 2152 1644 cmd.exe 34 PID 1644 wrote to memory of 2152 1644 cmd.exe 34 PID 2148 wrote to memory of 2556 2148 svchost.exe 36 PID 2148 wrote to memory of 2556 2148 svchost.exe 36 PID 2148 wrote to memory of 2556 2148 svchost.exe 36 PID 2556 wrote to memory of 2496 2556 cmd.exe 38 PID 2556 wrote to memory of 2496 2556 cmd.exe 38 PID 2556 wrote to memory of 2496 2556 cmd.exe 38 PID 2556 wrote to memory of 2516 2556 cmd.exe 39 PID 2556 wrote to memory of 2516 2556 cmd.exe 39 PID 2556 wrote to memory of 2516 2556 cmd.exe 39 PID 2148 wrote to memory of 2548 2148 svchost.exe 40 PID 2148 wrote to memory of 2548 2148 svchost.exe 40 PID 2148 wrote to memory of 2548 2148 svchost.exe 40 PID 2548 wrote to memory of 2284 2548 cmd.exe 42 PID 2548 wrote to memory of 2284 2548 cmd.exe 42 PID 2548 wrote to memory of 2284 2548 cmd.exe 42 PID 2148 wrote to memory of 2820 2148 svchost.exe 48 PID 2148 wrote to memory of 2820 2148 svchost.exe 48 PID 2148 wrote to memory of 2820 2148 svchost.exe 48 -
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\2024-08-25_be8b5751940eb24ef8b304ab16ea1a7d_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-25_be8b5751940eb24ef8b304ab16ea1a7d_destroyer_wannacry.exe"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2232 -
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)
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2148 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:1644 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2440
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2152
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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:2556 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2496
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2516
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2548 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2284
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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:2820
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2960
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1380
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1196
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2572
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
582B
MD5ed5cc52876db869de48a4783069c2a5e
SHA1a9d51ceaeff715ace430f9462ab2ee4e7f33e70e
SHA25645726f2f29967ef016f8d556fb6468a577307d67388cc4530295a9ca10fdfa36
SHA5121745aefb9b4db4cdd7c08ee3a7d133db08f35a336fd18b598211519b481ef25ac84a3e8a3da3db06caef9f531288d1cf0ca8d4b2560637945e7953e8b45421f5
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Filesize
27KB
MD5be8b5751940eb24ef8b304ab16ea1a7d
SHA147b3e2008dce91e137862d6ff63d590ce8dd8592
SHA25625bf809aae8ae8f0310afae47af4d9b28124b1ff3d892dd1a40811e89b3706fd
SHA512321de3939cdf984bb393f05661c3bb220ee073ff57c55605c13a6cb7213f22e09ddbcb056e863a588116a114a90a8b1039d4e41d4ee2d0293465bd94831a8545
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0