Analysis
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max time kernel
117s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
22-05-2024 22:27
Behavioral task
behavioral1
Sample
2024-05-22_5fccdeb38a1e21955a7092c4951da5e9_destroyer_wannacry.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-22_5fccdeb38a1e21955a7092c4951da5e9_destroyer_wannacry.exe
Resource
win10v2004-20240226-en
General
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Target
2024-05-22_5fccdeb38a1e21955a7092c4951da5e9_destroyer_wannacry.exe
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Size
27KB
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MD5
5fccdeb38a1e21955a7092c4951da5e9
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SHA1
47912b29d143d35d2a61b889a7bad3ad0181c36f
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SHA256
9d9fde305afc7a2d237ba04c1754270ccca8f0a67fde94befd7deca643a56e68
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SHA512
a7240ffb1eb0397ca500e93cd8e8ab155d72b9990fe39b8ce6ae8105b911136e13c461f623b5279f12f63a51a3556bc9a332e2186c56067fd5f3f8d38fa0426f
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SSDEEP
384:3DtWZPzzxAm1vp5ZRoDMS74WtRQUxhhlsNpGehl9Oy5o917pJY82vL:367zxAmpfyMS1RQUxGN4+ho9xs82z
Malware Config
Extracted
C:\Users\Default\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/2692-1-0x0000000001050000-0x000000000105E000-memory.dmp family_chaos behavioral1/files/0x000c0000000132c6-6.dat family_chaos behavioral1/memory/2592-8-0x0000000000FD0000-0x0000000000FDE000-memory.dmp family_chaos -
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Detects command variations typically used by ransomware 3 IoCs
resource yara_rule behavioral1/memory/2692-1-0x0000000001050000-0x000000000105E000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral1/files/0x000c0000000132c6-6.dat INDICATOR_SUSPICIOUS_GENRansomware behavioral1/memory/2592-8-0x0000000000FD0000-0x0000000000FDE000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware -
Detects executables containing many references to VEEAM. Observed in ransomware 3 IoCs
resource yara_rule behavioral1/memory/2692-1-0x0000000001050000-0x000000000105E000-memory.dmp INDICATOR_SUSPICOUS_EXE_References_VEEAM behavioral1/files/0x000c0000000132c6-6.dat INDICATOR_SUSPICOUS_EXE_References_VEEAM behavioral1/memory/2592-8-0x0000000000FD0000-0x0000000000FDE000-memory.dmp INDICATOR_SUSPICOUS_EXE_References_VEEAM -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 2724 bcdedit.exe 2824 bcdedit.exe -
pid Process 276 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 2592 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-1-5-21-330940541-141609230-1670313778-1000\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\Pictures\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-330940541-141609230-1670313778-1000\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Public\Libraries\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\Admin\Documents\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Public\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\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\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\Public\Videos\Sample Videos\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\Feeds Cache\2Y0HPGOE\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\Accessories\Windows PowerShell\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\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\Desktop\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\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\266EQP1S\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\AS4I30IR\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\AppData\Local\Microsoft\Feeds Cache\JP38OXIN\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\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\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\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\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\Public\Music\Sample Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\BB0Z8TKM\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\Recorded TV\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\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\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\1OEGTYQG\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\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\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\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\Default\AppData\Roaming\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\Startup\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\Saved Games\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\Admin\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\LS99WIMF\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\WZPJ6IGS\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\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\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\Public\Pictures\Sample Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\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 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2688 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2612 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2592 svchost.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 2692 2024-05-22_5fccdeb38a1e21955a7092c4951da5e9_destroyer_wannacry.exe 2692 2024-05-22_5fccdeb38a1e21955a7092c4951da5e9_destroyer_wannacry.exe 2592 svchost.exe 2592 svchost.exe 2592 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2692 2024-05-22_5fccdeb38a1e21955a7092c4951da5e9_destroyer_wannacry.exe Token: SeDebugPrivilege 2592 svchost.exe Token: SeBackupPrivilege 2844 vssvc.exe Token: SeRestorePrivilege 2844 vssvc.exe Token: SeAuditPrivilege 2844 vssvc.exe Token: SeIncreaseQuotaPrivilege 584 WMIC.exe Token: SeSecurityPrivilege 584 WMIC.exe Token: SeTakeOwnershipPrivilege 584 WMIC.exe Token: SeLoadDriverPrivilege 584 WMIC.exe Token: SeSystemProfilePrivilege 584 WMIC.exe Token: SeSystemtimePrivilege 584 WMIC.exe Token: SeProfSingleProcessPrivilege 584 WMIC.exe Token: SeIncBasePriorityPrivilege 584 WMIC.exe Token: SeCreatePagefilePrivilege 584 WMIC.exe Token: SeBackupPrivilege 584 WMIC.exe Token: SeRestorePrivilege 584 WMIC.exe Token: SeShutdownPrivilege 584 WMIC.exe Token: SeDebugPrivilege 584 WMIC.exe Token: SeSystemEnvironmentPrivilege 584 WMIC.exe Token: SeRemoteShutdownPrivilege 584 WMIC.exe Token: SeUndockPrivilege 584 WMIC.exe Token: SeManageVolumePrivilege 584 WMIC.exe Token: 33 584 WMIC.exe Token: 34 584 WMIC.exe Token: 35 584 WMIC.exe Token: SeIncreaseQuotaPrivilege 584 WMIC.exe Token: SeSecurityPrivilege 584 WMIC.exe Token: SeTakeOwnershipPrivilege 584 WMIC.exe Token: SeLoadDriverPrivilege 584 WMIC.exe Token: SeSystemProfilePrivilege 584 WMIC.exe Token: SeSystemtimePrivilege 584 WMIC.exe Token: SeProfSingleProcessPrivilege 584 WMIC.exe Token: SeIncBasePriorityPrivilege 584 WMIC.exe Token: SeCreatePagefilePrivilege 584 WMIC.exe Token: SeBackupPrivilege 584 WMIC.exe Token: SeRestorePrivilege 584 WMIC.exe Token: SeShutdownPrivilege 584 WMIC.exe Token: SeDebugPrivilege 584 WMIC.exe Token: SeSystemEnvironmentPrivilege 584 WMIC.exe Token: SeRemoteShutdownPrivilege 584 WMIC.exe Token: SeUndockPrivilege 584 WMIC.exe Token: SeManageVolumePrivilege 584 WMIC.exe Token: 33 584 WMIC.exe Token: 34 584 WMIC.exe Token: 35 584 WMIC.exe Token: SeBackupPrivilege 1664 wbengine.exe Token: SeRestorePrivilege 1664 wbengine.exe Token: SeSecurityPrivilege 1664 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2692 wrote to memory of 2592 2692 2024-05-22_5fccdeb38a1e21955a7092c4951da5e9_destroyer_wannacry.exe 28 PID 2692 wrote to memory of 2592 2692 2024-05-22_5fccdeb38a1e21955a7092c4951da5e9_destroyer_wannacry.exe 28 PID 2692 wrote to memory of 2592 2692 2024-05-22_5fccdeb38a1e21955a7092c4951da5e9_destroyer_wannacry.exe 28 PID 2592 wrote to memory of 2972 2592 svchost.exe 29 PID 2592 wrote to memory of 2972 2592 svchost.exe 29 PID 2592 wrote to memory of 2972 2592 svchost.exe 29 PID 2972 wrote to memory of 2688 2972 cmd.exe 31 PID 2972 wrote to memory of 2688 2972 cmd.exe 31 PID 2972 wrote to memory of 2688 2972 cmd.exe 31 PID 2972 wrote to memory of 584 2972 cmd.exe 34 PID 2972 wrote to memory of 584 2972 cmd.exe 34 PID 2972 wrote to memory of 584 2972 cmd.exe 34 PID 2592 wrote to memory of 1128 2592 svchost.exe 36 PID 2592 wrote to memory of 1128 2592 svchost.exe 36 PID 2592 wrote to memory of 1128 2592 svchost.exe 36 PID 1128 wrote to memory of 2724 1128 cmd.exe 38 PID 1128 wrote to memory of 2724 1128 cmd.exe 38 PID 1128 wrote to memory of 2724 1128 cmd.exe 38 PID 1128 wrote to memory of 2824 1128 cmd.exe 39 PID 1128 wrote to memory of 2824 1128 cmd.exe 39 PID 1128 wrote to memory of 2824 1128 cmd.exe 39 PID 2592 wrote to memory of 2864 2592 svchost.exe 40 PID 2592 wrote to memory of 2864 2592 svchost.exe 40 PID 2592 wrote to memory of 2864 2592 svchost.exe 40 PID 2864 wrote to memory of 276 2864 cmd.exe 42 PID 2864 wrote to memory of 276 2864 cmd.exe 42 PID 2864 wrote to memory of 276 2864 cmd.exe 42 PID 2592 wrote to memory of 2612 2592 svchost.exe 48 PID 2592 wrote to memory of 2612 2592 svchost.exe 48 PID 2592 wrote to memory of 2612 2592 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\2024-05-22_5fccdeb38a1e21955a7092c4951da5e9_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-22_5fccdeb38a1e21955a7092c4951da5e9_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2692 -
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:2592 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2972 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2688
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:584
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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:1128 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2724
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2824
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2864 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:276
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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:2612
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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:1664
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1960
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2320
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
27KB
MD55fccdeb38a1e21955a7092c4951da5e9
SHA147912b29d143d35d2a61b889a7bad3ad0181c36f
SHA2569d9fde305afc7a2d237ba04c1754270ccca8f0a67fde94befd7deca643a56e68
SHA512a7240ffb1eb0397ca500e93cd8e8ab155d72b9990fe39b8ce6ae8105b911136e13c461f623b5279f12f63a51a3556bc9a332e2186c56067fd5f3f8d38fa0426f
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0
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Filesize
582B
MD5ed5cc52876db869de48a4783069c2a5e
SHA1a9d51ceaeff715ace430f9462ab2ee4e7f33e70e
SHA25645726f2f29967ef016f8d556fb6468a577307d67388cc4530295a9ca10fdfa36
SHA5121745aefb9b4db4cdd7c08ee3a7d133db08f35a336fd18b598211519b481ef25ac84a3e8a3da3db06caef9f531288d1cf0ca8d4b2560637945e7953e8b45421f5