Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
29-11-2024 22:21
Behavioral task
behavioral1
Sample
2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe
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Size
26KB
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MD5
b5ef1d520befe79633982eb483cafadc
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SHA1
8ac1e9c5109823a3d03ee65c6ed15cf6404293bd
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SHA256
549772b695239a9db163ad7ceda902721ea021fb0a804855cc64f8b8a1a4e7ff
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SHA512
ce719ffb4807695b0ebf6e09403a79c8cc7f3ad50b17195f9d6f41c157c79afb91f12c0afc7586c54f5dd17180d8f02bde2ec31b010f5e67eaf29ccb59c0569b
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SSDEEP
768:Y7zxAmmBUrIIYrEgDYwVrho925O9c82c:YN2U0/8wVrq92O9nt
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/2176-1-0x0000000000830000-0x000000000083C000-memory.dmp family_chaos behavioral1/files/0x000b00000001225a-7.dat family_chaos behavioral1/memory/1268-9-0x00000000010C0000-0x00000000010CC000-memory.dmp family_chaos -
Chaos family
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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 1928 bcdedit.exe 2664 bcdedit.exe -
pid Process 1872 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 photoshop.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt photoshop.exe -
Executes dropped EXE 1 IoCs
pid Process 1268 photoshop.exe -
Reads user/profile data of web browsers 3 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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\UpdateTask = "C:\\Users\\Admin\\AppData\\Roaming\\photoshop.exe" photoshop.exe -
Drops desktop.ini file(s) 64 IoCs
description ioc Process File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini photoshop.exe File opened for modification C:\Users\Public\Videos\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Music\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Searches\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini photoshop.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini photoshop.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\History.IE5\desktop.ini photoshop.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Tablet PC\Desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Documents\desktop.ini photoshop.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini photoshop.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini photoshop.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini photoshop.exe File opened for modification C:\Users\Public\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\WK3MU41S\desktop.ini photoshop.exe File opened for modification C:\Users\Public\Pictures\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Videos\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\VSUVY3HP\desktop.ini photoshop.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini photoshop.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini photoshop.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\B8BOMT1Q\desktop.ini photoshop.exe File opened for modification C:\Users\Public\Music\desktop.ini photoshop.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini photoshop.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Links\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\TN6BGAW3\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\INNMDE1C\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\L1J27TKW\desktop.ini photoshop.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Ringtones\desktop.ini photoshop.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini photoshop.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini photoshop.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\desktop.ini photoshop.exe File opened for modification C:\Users\Public\Desktop\desktop.ini photoshop.exe File opened for modification C:\Users\Public\Libraries\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini photoshop.exe File opened for modification C:\Users\Public\Documents\desktop.ini photoshop.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini photoshop.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini photoshop.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini photoshop.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3533259084-2542256011-65585152-1000\desktop.ini photoshop.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini photoshop.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 2760 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2028 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1268 photoshop.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2176 2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe 2176 2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe 2176 2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe 1268 photoshop.exe 1268 photoshop.exe 1268 photoshop.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 2176 2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe Token: SeDebugPrivilege 1268 photoshop.exe Token: SeBackupPrivilege 2864 vssvc.exe Token: SeRestorePrivilege 2864 vssvc.exe Token: SeAuditPrivilege 2864 vssvc.exe Token: SeIncreaseQuotaPrivilege 2788 WMIC.exe Token: SeSecurityPrivilege 2788 WMIC.exe Token: SeTakeOwnershipPrivilege 2788 WMIC.exe Token: SeLoadDriverPrivilege 2788 WMIC.exe Token: SeSystemProfilePrivilege 2788 WMIC.exe Token: SeSystemtimePrivilege 2788 WMIC.exe Token: SeProfSingleProcessPrivilege 2788 WMIC.exe Token: SeIncBasePriorityPrivilege 2788 WMIC.exe Token: SeCreatePagefilePrivilege 2788 WMIC.exe Token: SeBackupPrivilege 2788 WMIC.exe Token: SeRestorePrivilege 2788 WMIC.exe Token: SeShutdownPrivilege 2788 WMIC.exe Token: SeDebugPrivilege 2788 WMIC.exe Token: SeSystemEnvironmentPrivilege 2788 WMIC.exe Token: SeRemoteShutdownPrivilege 2788 WMIC.exe Token: SeUndockPrivilege 2788 WMIC.exe Token: SeManageVolumePrivilege 2788 WMIC.exe Token: 33 2788 WMIC.exe Token: 34 2788 WMIC.exe Token: 35 2788 WMIC.exe Token: SeIncreaseQuotaPrivilege 2788 WMIC.exe Token: SeSecurityPrivilege 2788 WMIC.exe Token: SeTakeOwnershipPrivilege 2788 WMIC.exe Token: SeLoadDriverPrivilege 2788 WMIC.exe Token: SeSystemProfilePrivilege 2788 WMIC.exe Token: SeSystemtimePrivilege 2788 WMIC.exe Token: SeProfSingleProcessPrivilege 2788 WMIC.exe Token: SeIncBasePriorityPrivilege 2788 WMIC.exe Token: SeCreatePagefilePrivilege 2788 WMIC.exe Token: SeBackupPrivilege 2788 WMIC.exe Token: SeRestorePrivilege 2788 WMIC.exe Token: SeShutdownPrivilege 2788 WMIC.exe Token: SeDebugPrivilege 2788 WMIC.exe Token: SeSystemEnvironmentPrivilege 2788 WMIC.exe Token: SeRemoteShutdownPrivilege 2788 WMIC.exe Token: SeUndockPrivilege 2788 WMIC.exe Token: SeManageVolumePrivilege 2788 WMIC.exe Token: 33 2788 WMIC.exe Token: 34 2788 WMIC.exe Token: 35 2788 WMIC.exe Token: SeBackupPrivilege 2432 wbengine.exe Token: SeRestorePrivilege 2432 wbengine.exe Token: SeSecurityPrivilege 2432 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 2176 wrote to memory of 1268 2176 2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe 30 PID 2176 wrote to memory of 1268 2176 2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe 30 PID 2176 wrote to memory of 1268 2176 2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe 30 PID 1268 wrote to memory of 320 1268 photoshop.exe 31 PID 1268 wrote to memory of 320 1268 photoshop.exe 31 PID 1268 wrote to memory of 320 1268 photoshop.exe 31 PID 320 wrote to memory of 2760 320 cmd.exe 33 PID 320 wrote to memory of 2760 320 cmd.exe 33 PID 320 wrote to memory of 2760 320 cmd.exe 33 PID 320 wrote to memory of 2788 320 cmd.exe 36 PID 320 wrote to memory of 2788 320 cmd.exe 36 PID 320 wrote to memory of 2788 320 cmd.exe 36 PID 1268 wrote to memory of 2792 1268 photoshop.exe 38 PID 1268 wrote to memory of 2792 1268 photoshop.exe 38 PID 1268 wrote to memory of 2792 1268 photoshop.exe 38 PID 2792 wrote to memory of 1928 2792 cmd.exe 40 PID 2792 wrote to memory of 1928 2792 cmd.exe 40 PID 2792 wrote to memory of 1928 2792 cmd.exe 40 PID 2792 wrote to memory of 2664 2792 cmd.exe 41 PID 2792 wrote to memory of 2664 2792 cmd.exe 41 PID 2792 wrote to memory of 2664 2792 cmd.exe 41 PID 1268 wrote to memory of 1160 1268 photoshop.exe 42 PID 1268 wrote to memory of 1160 1268 photoshop.exe 42 PID 1268 wrote to memory of 1160 1268 photoshop.exe 42 PID 1160 wrote to memory of 1872 1160 cmd.exe 44 PID 1160 wrote to memory of 1872 1160 cmd.exe 44 PID 1160 wrote to memory of 1872 1160 cmd.exe 44 PID 1268 wrote to memory of 2028 1268 photoshop.exe 49 PID 1268 wrote to memory of 2028 1268 photoshop.exe 49 PID 1268 wrote to memory of 2028 1268 photoshop.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\2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2176 -
C:\Users\Admin\AppData\Roaming\photoshop.exe"C:\Users\Admin\AppData\Roaming\photoshop.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:1268 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:320 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2760
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2788
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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:2792 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1928
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2664
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1160 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1872
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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:2028
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2864
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2432
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1288
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:1936
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Direct Volume Access
1Indicator Removal
3File Deletion
3Modify Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
99B
MD5a34e8b5fea52beb91dfc151fb35d4118
SHA1d83d2450fa25795e7dd9b4a74a94aa4f559d7ca8
SHA2563afcfc4894491b146cc04a21471937958945e7c8a8cc31621adc8607dec92e97
SHA5127e51e3b4d68a7851e30a02d06e8efcfca44612ea2d5e52efec29fe1474b681be5ea75b2aca9066aa0994e2b79064750f0cbf9a05d56387e3eeaab3cda75f9e05
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Filesize
26KB
MD5b5ef1d520befe79633982eb483cafadc
SHA18ac1e9c5109823a3d03ee65c6ed15cf6404293bd
SHA256549772b695239a9db163ad7ceda902721ea021fb0a804855cc64f8b8a1a4e7ff
SHA512ce719ffb4807695b0ebf6e09403a79c8cc7f3ad50b17195f9d6f41c157c79afb91f12c0afc7586c54f5dd17180d8f02bde2ec31b010f5e67eaf29ccb59c0569b
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0