Analysis
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max time kernel
138s -
max time network
107s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
25-08-2024 06:29
Behavioral task
behavioral1
Sample
2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe
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Size
77KB
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MD5
305d975e0c3df4168d24f2c816ff46d7
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SHA1
1c233c2fa3de1e804ee8de90236dabdecb39bac2
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SHA256
b79883156cf021e22179ca553d3bd0138c9b236a7b85444361f428094009e1b1
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SHA512
e67ef2a586e6b3dcc4810fa26000a7eb789bb1ed32b9f893432f6e84fe0c3d60336df64717bb5ad9afd85ff3638cc6dc7c1687870fa6495d5edeb04d53b14adf
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SSDEEP
1536:k3kIDltwI21r9itLjEHZEnogTM2L/AXuCaWJeBEiU0u/4MTnjx:k3kUl21r9iZt/IS/A2WM9Unb/x
Malware Config
Extracted
C:\Users\Admin\Desktop\IMPORTANT.txt
chaos
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 2 IoCs
resource yara_rule behavioral2/memory/2984-1-0x00000000004E0000-0x00000000004FA000-memory.dmp family_chaos behavioral2/files/0x000d0000000006c5-6.dat 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 4272 bcdedit.exe 1400 bcdedit.exe -
pid Process 2476 wbadmin.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation winint.exe Key value queried \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\winint.url winint.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini winint.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IMPORTANT.txt winint.exe -
Executes dropped EXE 1 IoCs
pid Process 3192 winint.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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Drops desktop.ini file(s) 34 IoCs
description ioc Process File opened for modification C:\Users\Public\Desktop\desktop.ini winint.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini winint.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini winint.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini winint.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini winint.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini winint.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-1302416131-1437503476-2806442725-1000\desktop.ini winint.exe File opened for modification C:\Users\Admin\Links\desktop.ini winint.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini winint.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini winint.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini winint.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini winint.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini winint.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini winint.exe File opened for modification C:\Users\Public\Documents\desktop.ini winint.exe File opened for modification C:\Users\Public\Music\desktop.ini winint.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini winint.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini winint.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini winint.exe File opened for modification C:\Users\Public\Videos\desktop.ini winint.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini winint.exe File opened for modification C:\Users\Public\Pictures\desktop.ini winint.exe File opened for modification C:\Users\Admin\Documents\desktop.ini winint.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini winint.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini winint.exe File opened for modification C:\Users\Admin\Searches\desktop.ini winint.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini winint.exe File opened for modification C:\Users\Admin\Music\desktop.ini winint.exe File opened for modification C:\Users\Admin\Videos\desktop.ini winint.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini winint.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini winint.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini winint.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini winint.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini winint.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b7h2j7j48.jpg" winint.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName vds.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\FriendlyName vds.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000 vds.exe -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 3496 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000_Classes\Local Settings winint.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 3332 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3192 winint.exe -
Suspicious behavior: EnumeratesProcesses 51 IoCs
pid Process 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe 3192 winint.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe Token: SeDebugPrivilege 3192 winint.exe Token: SeBackupPrivilege 2108 vssvc.exe Token: SeRestorePrivilege 2108 vssvc.exe Token: SeAuditPrivilege 2108 vssvc.exe Token: SeIncreaseQuotaPrivilege 1208 WMIC.exe Token: SeSecurityPrivilege 1208 WMIC.exe Token: SeTakeOwnershipPrivilege 1208 WMIC.exe Token: SeLoadDriverPrivilege 1208 WMIC.exe Token: SeSystemProfilePrivilege 1208 WMIC.exe Token: SeSystemtimePrivilege 1208 WMIC.exe Token: SeProfSingleProcessPrivilege 1208 WMIC.exe Token: SeIncBasePriorityPrivilege 1208 WMIC.exe Token: SeCreatePagefilePrivilege 1208 WMIC.exe Token: SeBackupPrivilege 1208 WMIC.exe Token: SeRestorePrivilege 1208 WMIC.exe Token: SeShutdownPrivilege 1208 WMIC.exe Token: SeDebugPrivilege 1208 WMIC.exe Token: SeSystemEnvironmentPrivilege 1208 WMIC.exe Token: SeRemoteShutdownPrivilege 1208 WMIC.exe Token: SeUndockPrivilege 1208 WMIC.exe Token: SeManageVolumePrivilege 1208 WMIC.exe Token: 33 1208 WMIC.exe Token: 34 1208 WMIC.exe Token: 35 1208 WMIC.exe Token: 36 1208 WMIC.exe Token: SeIncreaseQuotaPrivilege 1208 WMIC.exe Token: SeSecurityPrivilege 1208 WMIC.exe Token: SeTakeOwnershipPrivilege 1208 WMIC.exe Token: SeLoadDriverPrivilege 1208 WMIC.exe Token: SeSystemProfilePrivilege 1208 WMIC.exe Token: SeSystemtimePrivilege 1208 WMIC.exe Token: SeProfSingleProcessPrivilege 1208 WMIC.exe Token: SeIncBasePriorityPrivilege 1208 WMIC.exe Token: SeCreatePagefilePrivilege 1208 WMIC.exe Token: SeBackupPrivilege 1208 WMIC.exe Token: SeRestorePrivilege 1208 WMIC.exe Token: SeShutdownPrivilege 1208 WMIC.exe Token: SeDebugPrivilege 1208 WMIC.exe Token: SeSystemEnvironmentPrivilege 1208 WMIC.exe Token: SeRemoteShutdownPrivilege 1208 WMIC.exe Token: SeUndockPrivilege 1208 WMIC.exe Token: SeManageVolumePrivilege 1208 WMIC.exe Token: 33 1208 WMIC.exe Token: 34 1208 WMIC.exe Token: 35 1208 WMIC.exe Token: 36 1208 WMIC.exe Token: SeBackupPrivilege 4948 wbengine.exe Token: SeRestorePrivilege 4948 wbengine.exe Token: SeSecurityPrivilege 4948 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 2984 wrote to memory of 3192 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 89 PID 2984 wrote to memory of 3192 2984 2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe 89 PID 3192 wrote to memory of 4424 3192 winint.exe 93 PID 3192 wrote to memory of 4424 3192 winint.exe 93 PID 4424 wrote to memory of 3496 4424 cmd.exe 95 PID 4424 wrote to memory of 3496 4424 cmd.exe 95 PID 4424 wrote to memory of 1208 4424 cmd.exe 98 PID 4424 wrote to memory of 1208 4424 cmd.exe 98 PID 3192 wrote to memory of 4732 3192 winint.exe 99 PID 3192 wrote to memory of 4732 3192 winint.exe 99 PID 4732 wrote to memory of 4272 4732 cmd.exe 101 PID 4732 wrote to memory of 4272 4732 cmd.exe 101 PID 4732 wrote to memory of 1400 4732 cmd.exe 102 PID 4732 wrote to memory of 1400 4732 cmd.exe 102 PID 3192 wrote to memory of 392 3192 winint.exe 103 PID 3192 wrote to memory of 392 3192 winint.exe 103 PID 392 wrote to memory of 2476 392 cmd.exe 105 PID 392 wrote to memory of 2476 392 cmd.exe 105 PID 3192 wrote to memory of 3332 3192 winint.exe 110 PID 3192 wrote to memory of 3332 3192 winint.exe 110 -
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_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-25_305d975e0c3df4168d24f2c816ff46d7_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2984 -
C:\Users\Admin\AppData\Roaming\winint.exe"C:\Users\Admin\AppData\Roaming\winint.exe"2⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3192 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:4424 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:3496
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1208
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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:4732 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:4272
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1400
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:392 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2476
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\IMPORTANT.txt3⤵
- Opens file in notepad (likely ransom note)
PID:3332
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2108
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4948
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:3176
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:4008
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
77KB
MD5305d975e0c3df4168d24f2c816ff46d7
SHA11c233c2fa3de1e804ee8de90236dabdecb39bac2
SHA256b79883156cf021e22179ca553d3bd0138c9b236a7b85444361f428094009e1b1
SHA512e67ef2a586e6b3dcc4810fa26000a7eb789bb1ed32b9f893432f6e84fe0c3d60336df64717bb5ad9afd85ff3638cc6dc7c1687870fa6495d5edeb04d53b14adf
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740