Analysis
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max time kernel
117s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
29-11-2024 22:24
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/1448-1-0x0000000000E50000-0x0000000000E5C000-memory.dmp family_chaos behavioral1/files/0x0005000000010300-7.dat family_chaos behavioral1/memory/2812-9-0x00000000013C0000-0x00000000013CC000-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 2664 bcdedit.exe 2840 bcdedit.exe -
pid Process 2248 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 2812 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-1-5-21-1488793075-819845221-1497111674-1000\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\Public\Videos\Sample Videos\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\Default\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\C1JHBK4W\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\Admin\Documents\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini photoshop.exe File opened for modification C:\Users\Public\Libraries\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\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini photoshop.exe File opened for modification C:\Users\Public\Videos\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\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\ORIYJR4N\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\Local\Microsoft\Windows\Temporary Internet Files\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\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\Videos\desktop.ini photoshop.exe File opened for modification C:\Users\Public\Downloads\desktop.ini photoshop.exe File opened for modification C:\Users\Public\Music\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\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Music\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\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\Startup\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\PG1T8SOQ\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\Downloads\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\Public\Music\Sample Music\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\AppData\Local\Microsoft\Windows\History\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\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\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\Public\desktop.ini photoshop.exe File opened for modification C:\Users\Public\Documents\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\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\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\N5RJMVSE\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\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\DFSC7KT7\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\Links\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Favorites\Links\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\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\CW1M20CU\desktop.ini photoshop.exe File opened for modification C:\Users\Public\Pictures\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini photoshop.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\I618Z2Y3\desktop.ini photoshop.exe 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\Admin\Searches\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\Favorites\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\All Users\Microsoft\Windows\Start Menu\Programs\Games\Desktop.ini photoshop.exe File opened for modification C:\Users\Admin\Desktop\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\Recorded TV\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 2884 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2084 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2812 photoshop.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1448 2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe 1448 2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe 1448 2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe 2812 photoshop.exe 2812 photoshop.exe 2812 photoshop.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 1448 2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe Token: SeDebugPrivilege 2812 photoshop.exe Token: SeBackupPrivilege 2592 vssvc.exe Token: SeRestorePrivilege 2592 vssvc.exe Token: SeAuditPrivilege 2592 vssvc.exe Token: SeIncreaseQuotaPrivilege 1820 WMIC.exe Token: SeSecurityPrivilege 1820 WMIC.exe Token: SeTakeOwnershipPrivilege 1820 WMIC.exe Token: SeLoadDriverPrivilege 1820 WMIC.exe Token: SeSystemProfilePrivilege 1820 WMIC.exe Token: SeSystemtimePrivilege 1820 WMIC.exe Token: SeProfSingleProcessPrivilege 1820 WMIC.exe Token: SeIncBasePriorityPrivilege 1820 WMIC.exe Token: SeCreatePagefilePrivilege 1820 WMIC.exe Token: SeBackupPrivilege 1820 WMIC.exe Token: SeRestorePrivilege 1820 WMIC.exe Token: SeShutdownPrivilege 1820 WMIC.exe Token: SeDebugPrivilege 1820 WMIC.exe Token: SeSystemEnvironmentPrivilege 1820 WMIC.exe Token: SeRemoteShutdownPrivilege 1820 WMIC.exe Token: SeUndockPrivilege 1820 WMIC.exe Token: SeManageVolumePrivilege 1820 WMIC.exe Token: 33 1820 WMIC.exe Token: 34 1820 WMIC.exe Token: 35 1820 WMIC.exe Token: SeIncreaseQuotaPrivilege 1820 WMIC.exe Token: SeSecurityPrivilege 1820 WMIC.exe Token: SeTakeOwnershipPrivilege 1820 WMIC.exe Token: SeLoadDriverPrivilege 1820 WMIC.exe Token: SeSystemProfilePrivilege 1820 WMIC.exe Token: SeSystemtimePrivilege 1820 WMIC.exe Token: SeProfSingleProcessPrivilege 1820 WMIC.exe Token: SeIncBasePriorityPrivilege 1820 WMIC.exe Token: SeCreatePagefilePrivilege 1820 WMIC.exe Token: SeBackupPrivilege 1820 WMIC.exe Token: SeRestorePrivilege 1820 WMIC.exe Token: SeShutdownPrivilege 1820 WMIC.exe Token: SeDebugPrivilege 1820 WMIC.exe Token: SeSystemEnvironmentPrivilege 1820 WMIC.exe Token: SeRemoteShutdownPrivilege 1820 WMIC.exe Token: SeUndockPrivilege 1820 WMIC.exe Token: SeManageVolumePrivilege 1820 WMIC.exe Token: 33 1820 WMIC.exe Token: 34 1820 WMIC.exe Token: 35 1820 WMIC.exe Token: SeBackupPrivilege 2260 wbengine.exe Token: SeRestorePrivilege 2260 wbengine.exe Token: SeSecurityPrivilege 2260 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 1448 wrote to memory of 2812 1448 2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe 30 PID 1448 wrote to memory of 2812 1448 2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe 30 PID 1448 wrote to memory of 2812 1448 2024-11-29_b5ef1d520befe79633982eb483cafadc_destroyer_wannacry.exe 30 PID 2812 wrote to memory of 2584 2812 photoshop.exe 31 PID 2812 wrote to memory of 2584 2812 photoshop.exe 31 PID 2812 wrote to memory of 2584 2812 photoshop.exe 31 PID 2584 wrote to memory of 2884 2584 cmd.exe 33 PID 2584 wrote to memory of 2884 2584 cmd.exe 33 PID 2584 wrote to memory of 2884 2584 cmd.exe 33 PID 2584 wrote to memory of 1820 2584 cmd.exe 36 PID 2584 wrote to memory of 1820 2584 cmd.exe 36 PID 2584 wrote to memory of 1820 2584 cmd.exe 36 PID 2812 wrote to memory of 2632 2812 photoshop.exe 38 PID 2812 wrote to memory of 2632 2812 photoshop.exe 38 PID 2812 wrote to memory of 2632 2812 photoshop.exe 38 PID 2632 wrote to memory of 2664 2632 cmd.exe 40 PID 2632 wrote to memory of 2664 2632 cmd.exe 40 PID 2632 wrote to memory of 2664 2632 cmd.exe 40 PID 2632 wrote to memory of 2840 2632 cmd.exe 41 PID 2632 wrote to memory of 2840 2632 cmd.exe 41 PID 2632 wrote to memory of 2840 2632 cmd.exe 41 PID 2812 wrote to memory of 2904 2812 photoshop.exe 42 PID 2812 wrote to memory of 2904 2812 photoshop.exe 42 PID 2812 wrote to memory of 2904 2812 photoshop.exe 42 PID 2904 wrote to memory of 2248 2904 cmd.exe 44 PID 2904 wrote to memory of 2248 2904 cmd.exe 44 PID 2904 wrote to memory of 2248 2904 cmd.exe 44 PID 2812 wrote to memory of 2084 2812 photoshop.exe 49 PID 2812 wrote to memory of 2084 2812 photoshop.exe 49 PID 2812 wrote to memory of 2084 2812 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:1448 -
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:2812 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2584 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2884
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1820
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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:2632 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2664
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2840
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2904 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2248
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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:2084
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2592
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2260
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1632
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:968
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