Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
25-08-2024 11:23
Behavioral task
behavioral1
Sample
2024-08-25_805d5b6a04bc59a03b0a5b957f29c43d_destroyer_wannacry.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-08-25_805d5b6a04bc59a03b0a5b957f29c43d_destroyer_wannacry.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-25_805d5b6a04bc59a03b0a5b957f29c43d_destroyer_wannacry.exe
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Size
27KB
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MD5
805d5b6a04bc59a03b0a5b957f29c43d
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SHA1
7eb6b748decf4e07c0a346af92ac25bc00e536a6
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SHA256
5eef7f1b2ab55c74bcb21c2049e426b1fd6eb72c5e6bbe9b02bc59671f08938f
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SHA512
94840fad346fda35b0b2c250f8e3966978a29f3cef4e29c575744c6f3cd6f9afd0d50a168e6496ac85950489d5bc0751f455b37eff8fd8721847df8f7856b37b
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SSDEEP
384:utWZPzzxAm1vp5ZRoDNhvLKeOS2NiCXlKOy5o91A0GpL82v5:z7zxAmpfyzeeOSSiNho9+R82R
Malware Config
Extracted
C:\ProgramData\Adobe\Updater6\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/1476-1-0x0000000000170000-0x000000000017E000-memory.dmp family_chaos behavioral1/files/0x00080000000120fb-6.dat family_chaos behavioral1/memory/2340-8-0x0000000001070000-0x000000000107E000-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 664 bcdedit.exe 1988 bcdedit.exe -
pid Process 2848 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 2340 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-1-5-21-3551809350-4263495960-1443967649-1000\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\AppData\Local\Microsoft\Feeds Cache\63WZ73PY\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\ROVWYKHE\desktop.ini svchost.exe File opened for modification C:\Users\Public\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\Accessories\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\Libraries\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\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\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\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\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\Public\Music\Sample Music\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\Sample Videos\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\All Users\Microsoft\Windows\Ringtones\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\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\SendTo\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\L2BFB2JG\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\R9C9T5AL\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\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\Local\Microsoft\Feeds Cache\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\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\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\Public\Pictures\Sample Pictures\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3551809350-4263495960-1443967649-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\7CO3PKGI\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\IQBL5G2Z\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\YQ90JXIE\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\AppData\Roaming\Microsoft\Windows\Recent\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\Admin\Downloads\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\Favorites\Links for United States\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\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Public\Recorded TV\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\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\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\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\MYC3PENY\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\Games\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\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\Videos\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\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\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 2964 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2136 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 1476 2024-08-25_805d5b6a04bc59a03b0a5b957f29c43d_destroyer_wannacry.exe 2340 svchost.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1476 2024-08-25_805d5b6a04bc59a03b0a5b957f29c43d_destroyer_wannacry.exe 1476 2024-08-25_805d5b6a04bc59a03b0a5b957f29c43d_destroyer_wannacry.exe 1476 2024-08-25_805d5b6a04bc59a03b0a5b957f29c43d_destroyer_wannacry.exe 2340 svchost.exe 2340 svchost.exe 2340 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 1476 2024-08-25_805d5b6a04bc59a03b0a5b957f29c43d_destroyer_wannacry.exe Token: SeDebugPrivilege 2340 svchost.exe Token: SeBackupPrivilege 2844 vssvc.exe Token: SeRestorePrivilege 2844 vssvc.exe Token: SeAuditPrivilege 2844 vssvc.exe Token: SeIncreaseQuotaPrivilege 760 WMIC.exe Token: SeSecurityPrivilege 760 WMIC.exe Token: SeTakeOwnershipPrivilege 760 WMIC.exe Token: SeLoadDriverPrivilege 760 WMIC.exe Token: SeSystemProfilePrivilege 760 WMIC.exe Token: SeSystemtimePrivilege 760 WMIC.exe Token: SeProfSingleProcessPrivilege 760 WMIC.exe Token: SeIncBasePriorityPrivilege 760 WMIC.exe Token: SeCreatePagefilePrivilege 760 WMIC.exe Token: SeBackupPrivilege 760 WMIC.exe Token: SeRestorePrivilege 760 WMIC.exe Token: SeShutdownPrivilege 760 WMIC.exe Token: SeDebugPrivilege 760 WMIC.exe Token: SeSystemEnvironmentPrivilege 760 WMIC.exe Token: SeRemoteShutdownPrivilege 760 WMIC.exe Token: SeUndockPrivilege 760 WMIC.exe Token: SeManageVolumePrivilege 760 WMIC.exe Token: 33 760 WMIC.exe Token: 34 760 WMIC.exe Token: 35 760 WMIC.exe Token: SeIncreaseQuotaPrivilege 760 WMIC.exe Token: SeSecurityPrivilege 760 WMIC.exe Token: SeTakeOwnershipPrivilege 760 WMIC.exe Token: SeLoadDriverPrivilege 760 WMIC.exe Token: SeSystemProfilePrivilege 760 WMIC.exe Token: SeSystemtimePrivilege 760 WMIC.exe Token: SeProfSingleProcessPrivilege 760 WMIC.exe Token: SeIncBasePriorityPrivilege 760 WMIC.exe Token: SeCreatePagefilePrivilege 760 WMIC.exe Token: SeBackupPrivilege 760 WMIC.exe Token: SeRestorePrivilege 760 WMIC.exe Token: SeShutdownPrivilege 760 WMIC.exe Token: SeDebugPrivilege 760 WMIC.exe Token: SeSystemEnvironmentPrivilege 760 WMIC.exe Token: SeRemoteShutdownPrivilege 760 WMIC.exe Token: SeUndockPrivilege 760 WMIC.exe Token: SeManageVolumePrivilege 760 WMIC.exe Token: 33 760 WMIC.exe Token: 34 760 WMIC.exe Token: 35 760 WMIC.exe Token: SeBackupPrivilege 300 wbengine.exe Token: SeRestorePrivilege 300 wbengine.exe Token: SeSecurityPrivilege 300 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 1476 wrote to memory of 2340 1476 2024-08-25_805d5b6a04bc59a03b0a5b957f29c43d_destroyer_wannacry.exe 30 PID 1476 wrote to memory of 2340 1476 2024-08-25_805d5b6a04bc59a03b0a5b957f29c43d_destroyer_wannacry.exe 30 PID 1476 wrote to memory of 2340 1476 2024-08-25_805d5b6a04bc59a03b0a5b957f29c43d_destroyer_wannacry.exe 30 PID 2340 wrote to memory of 2824 2340 svchost.exe 31 PID 2340 wrote to memory of 2824 2340 svchost.exe 31 PID 2340 wrote to memory of 2824 2340 svchost.exe 31 PID 2824 wrote to memory of 2964 2824 cmd.exe 33 PID 2824 wrote to memory of 2964 2824 cmd.exe 33 PID 2824 wrote to memory of 2964 2824 cmd.exe 33 PID 2824 wrote to memory of 760 2824 cmd.exe 36 PID 2824 wrote to memory of 760 2824 cmd.exe 36 PID 2824 wrote to memory of 760 2824 cmd.exe 36 PID 2340 wrote to memory of 1696 2340 svchost.exe 38 PID 2340 wrote to memory of 1696 2340 svchost.exe 38 PID 2340 wrote to memory of 1696 2340 svchost.exe 38 PID 1696 wrote to memory of 664 1696 cmd.exe 40 PID 1696 wrote to memory of 664 1696 cmd.exe 40 PID 1696 wrote to memory of 664 1696 cmd.exe 40 PID 1696 wrote to memory of 1988 1696 cmd.exe 41 PID 1696 wrote to memory of 1988 1696 cmd.exe 41 PID 1696 wrote to memory of 1988 1696 cmd.exe 41 PID 2340 wrote to memory of 2764 2340 svchost.exe 42 PID 2340 wrote to memory of 2764 2340 svchost.exe 42 PID 2340 wrote to memory of 2764 2340 svchost.exe 42 PID 2764 wrote to memory of 2848 2764 cmd.exe 44 PID 2764 wrote to memory of 2848 2764 cmd.exe 44 PID 2764 wrote to memory of 2848 2764 cmd.exe 44 PID 2340 wrote to memory of 2136 2340 svchost.exe 49 PID 2340 wrote to memory of 2136 2340 svchost.exe 49 PID 2340 wrote to memory of 2136 2340 svchost.exe 49 -
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_805d5b6a04bc59a03b0a5b957f29c43d_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-25_805d5b6a04bc59a03b0a5b957f29c43d_destroyer_wannacry.exe"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1476 -
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:2340 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2824 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2964
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:760
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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:1696 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:664
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1988
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2764 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2848
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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:2136
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2844
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:300
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2864
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:3036
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
582B
MD5ed5cc52876db869de48a4783069c2a5e
SHA1a9d51ceaeff715ace430f9462ab2ee4e7f33e70e
SHA25645726f2f29967ef016f8d556fb6468a577307d67388cc4530295a9ca10fdfa36
SHA5121745aefb9b4db4cdd7c08ee3a7d133db08f35a336fd18b598211519b481ef25ac84a3e8a3da3db06caef9f531288d1cf0ca8d4b2560637945e7953e8b45421f5
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Filesize
27KB
MD5805d5b6a04bc59a03b0a5b957f29c43d
SHA17eb6b748decf4e07c0a346af92ac25bc00e536a6
SHA2565eef7f1b2ab55c74bcb21c2049e426b1fd6eb72c5e6bbe9b02bc59671f08938f
SHA51294840fad346fda35b0b2c250f8e3966978a29f3cef4e29c575744c6f3cd6f9afd0d50a168e6496ac85950489d5bc0751f455b37eff8fd8721847df8f7856b37b
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0