Analysis
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max time kernel
121s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
08-07-2024 01:29
Behavioral task
behavioral1
Sample
2024-07-08_bfc7d2b1138466cf6227670d9f8731ad_destroyer_wannacry.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
2024-07-08_bfc7d2b1138466cf6227670d9f8731ad_destroyer_wannacry.exe
Resource
win10v2004-20240704-en
General
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Target
2024-07-08_bfc7d2b1138466cf6227670d9f8731ad_destroyer_wannacry.exe
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Size
27KB
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MD5
bfc7d2b1138466cf6227670d9f8731ad
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SHA1
7bab71576d5f05802cd63876f3e42e489775a9a8
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SHA256
ef97bc79042f3929e9e0cc2459f036857a53fee41d673ba54727c5ee219dafc8
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SHA512
db41b7923ed6cde870201f4fbe18779165df76510912644c0f4f28c29bf9aad1867a4316c08118ad32f094569d4ba5720a70295b7351899a2a3d038a1d473283
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SSDEEP
384:AmtWZPzzxAm1vAddehhvLKe21GS2NiNWllOy5o91Qd7aNI82vl:Ar7zxAmIde3ee2ISSigho9M7aa82t
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 behavioral1/memory/2088-1-0x00000000013D0000-0x00000000013DE000-memory.dmp family_chaos behavioral1/files/0x000d000000012283-6.dat family_chaos behavioral1/memory/2108-8-0x0000000000EE0000-0x0000000000EEE000-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 2356 bcdedit.exe 2248 bcdedit.exe -
Renames multiple (186) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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pid Process 1900 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-ME-H2490WRFSFSU.txt svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2108 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-1-5-21-3502430532-24693940-2469786940-1000\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\G2KVEH0D\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\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\72EHROQQ\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\Public\Videos\Sample Videos\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\AppData\Local\Microsoft\Windows\History\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\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\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\3WOHY2HJ\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\Public\Documents\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\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\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\SendTo\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\Temporary Internet Files\Content.IE5\AWH2H80Y\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\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\CNQY6MQU\desktop.ini svchost.exe File opened for modification C:\Users\Public\Downloads\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\Programs\Accessories\Accessibility\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\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\Start Menu\Programs\Accessories\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\AppData\Local\Microsoft\Feeds Cache\7JXML4U5\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\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\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\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3502430532-24693940-2469786940-1000\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\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\4QLC8FPK\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\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\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\Burn\Burn\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\B6089GTH\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\All Users\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\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\Tablet PC\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\SendTo\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\Default\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\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 2548 vssadmin.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2108 svchost.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2088 2024-07-08_bfc7d2b1138466cf6227670d9f8731ad_destroyer_wannacry.exe 2088 2024-07-08_bfc7d2b1138466cf6227670d9f8731ad_destroyer_wannacry.exe 2088 2024-07-08_bfc7d2b1138466cf6227670d9f8731ad_destroyer_wannacry.exe 2108 svchost.exe 2108 svchost.exe 2108 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2088 2024-07-08_bfc7d2b1138466cf6227670d9f8731ad_destroyer_wannacry.exe Token: SeDebugPrivilege 2108 svchost.exe Token: SeBackupPrivilege 2644 vssvc.exe Token: SeRestorePrivilege 2644 vssvc.exe Token: SeAuditPrivilege 2644 vssvc.exe Token: SeIncreaseQuotaPrivilege 2464 WMIC.exe Token: SeSecurityPrivilege 2464 WMIC.exe Token: SeTakeOwnershipPrivilege 2464 WMIC.exe Token: SeLoadDriverPrivilege 2464 WMIC.exe Token: SeSystemProfilePrivilege 2464 WMIC.exe Token: SeSystemtimePrivilege 2464 WMIC.exe Token: SeProfSingleProcessPrivilege 2464 WMIC.exe Token: SeIncBasePriorityPrivilege 2464 WMIC.exe Token: SeCreatePagefilePrivilege 2464 WMIC.exe Token: SeBackupPrivilege 2464 WMIC.exe Token: SeRestorePrivilege 2464 WMIC.exe Token: SeShutdownPrivilege 2464 WMIC.exe Token: SeDebugPrivilege 2464 WMIC.exe Token: SeSystemEnvironmentPrivilege 2464 WMIC.exe Token: SeRemoteShutdownPrivilege 2464 WMIC.exe Token: SeUndockPrivilege 2464 WMIC.exe Token: SeManageVolumePrivilege 2464 WMIC.exe Token: 33 2464 WMIC.exe Token: 34 2464 WMIC.exe Token: 35 2464 WMIC.exe Token: SeIncreaseQuotaPrivilege 2464 WMIC.exe Token: SeSecurityPrivilege 2464 WMIC.exe Token: SeTakeOwnershipPrivilege 2464 WMIC.exe Token: SeLoadDriverPrivilege 2464 WMIC.exe Token: SeSystemProfilePrivilege 2464 WMIC.exe Token: SeSystemtimePrivilege 2464 WMIC.exe Token: SeProfSingleProcessPrivilege 2464 WMIC.exe Token: SeIncBasePriorityPrivilege 2464 WMIC.exe Token: SeCreatePagefilePrivilege 2464 WMIC.exe Token: SeBackupPrivilege 2464 WMIC.exe Token: SeRestorePrivilege 2464 WMIC.exe Token: SeShutdownPrivilege 2464 WMIC.exe Token: SeDebugPrivilege 2464 WMIC.exe Token: SeSystemEnvironmentPrivilege 2464 WMIC.exe Token: SeRemoteShutdownPrivilege 2464 WMIC.exe Token: SeUndockPrivilege 2464 WMIC.exe Token: SeManageVolumePrivilege 2464 WMIC.exe Token: 33 2464 WMIC.exe Token: 34 2464 WMIC.exe Token: 35 2464 WMIC.exe Token: SeBackupPrivilege 2420 wbengine.exe Token: SeRestorePrivilege 2420 wbengine.exe Token: SeSecurityPrivilege 2420 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2088 wrote to memory of 2108 2088 2024-07-08_bfc7d2b1138466cf6227670d9f8731ad_destroyer_wannacry.exe 30 PID 2088 wrote to memory of 2108 2088 2024-07-08_bfc7d2b1138466cf6227670d9f8731ad_destroyer_wannacry.exe 30 PID 2088 wrote to memory of 2108 2088 2024-07-08_bfc7d2b1138466cf6227670d9f8731ad_destroyer_wannacry.exe 30 PID 2108 wrote to memory of 3032 2108 svchost.exe 31 PID 2108 wrote to memory of 3032 2108 svchost.exe 31 PID 2108 wrote to memory of 3032 2108 svchost.exe 31 PID 3032 wrote to memory of 2548 3032 cmd.exe 33 PID 3032 wrote to memory of 2548 3032 cmd.exe 33 PID 3032 wrote to memory of 2548 3032 cmd.exe 33 PID 3032 wrote to memory of 2464 3032 cmd.exe 36 PID 3032 wrote to memory of 2464 3032 cmd.exe 36 PID 3032 wrote to memory of 2464 3032 cmd.exe 36 PID 2108 wrote to memory of 604 2108 svchost.exe 38 PID 2108 wrote to memory of 604 2108 svchost.exe 38 PID 2108 wrote to memory of 604 2108 svchost.exe 38 PID 604 wrote to memory of 2356 604 cmd.exe 40 PID 604 wrote to memory of 2356 604 cmd.exe 40 PID 604 wrote to memory of 2356 604 cmd.exe 40 PID 604 wrote to memory of 2248 604 cmd.exe 41 PID 604 wrote to memory of 2248 604 cmd.exe 41 PID 604 wrote to memory of 2248 604 cmd.exe 41 PID 2108 wrote to memory of 1572 2108 svchost.exe 42 PID 2108 wrote to memory of 1572 2108 svchost.exe 42 PID 2108 wrote to memory of 1572 2108 svchost.exe 42 PID 1572 wrote to memory of 1900 1572 cmd.exe 44 PID 1572 wrote to memory of 1900 1572 cmd.exe 44 PID 1572 wrote to memory of 1900 1572 cmd.exe 44 PID 2108 wrote to memory of 440 2108 svchost.exe 49 PID 2108 wrote to memory of 440 2108 svchost.exe 49 PID 2108 wrote to memory of 440 2108 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\2024-07-08_bfc7d2b1138466cf6227670d9f8731ad_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-07-08_bfc7d2b1138466cf6227670d9f8731ad_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2088 -
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:2108 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:3032 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2548
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2464
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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:604 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2356
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2248
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1572 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1900
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\READ-ME-H2490WRFSFSU.txt3⤵PID:440
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2644
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2420
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2348
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2200
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
382B
MD512088a613ef8dc298111eb8745d1a4ec
SHA111daa8929a23b51f7e57219b029813e4f3fa01d3
SHA256d6646124e0d5ad091a5f3b851539de0f59f15d6c02edf0af2ec673db632eb469
SHA5125a3c8ac62132d951000d8182580809ef467ffdc4703e2b4382a55ee12c33dfbcaed6bf35c3535296b4b95043e4ca95f1876c30cfbe85e0bb89972a06e83fb957
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Filesize
27KB
MD5bfc7d2b1138466cf6227670d9f8731ad
SHA17bab71576d5f05802cd63876f3e42e489775a9a8
SHA256ef97bc79042f3929e9e0cc2459f036857a53fee41d673ba54727c5ee219dafc8
SHA512db41b7923ed6cde870201f4fbe18779165df76510912644c0f4f28c29bf9aad1867a4316c08118ad32f094569d4ba5720a70295b7351899a2a3d038a1d473283
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0