Analysis
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max time kernel
143s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
15-08-2024 17:24
Behavioral task
behavioral1
Sample
2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe
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Size
1.8MB
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MD5
947041f93f370b6a3668cbe0ac401582
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SHA1
5e0664cbb97f5a5563f122b99f6bd620a81b2f37
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SHA256
412d40720095f3a6c8cbae9bb4cae40e4d3cb372962b11795792eec61f3de690
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SHA512
61dbb400f4c3f29ab0154ab2fd13fa57b5788b6f5f56b24c354e29ecd5b6a926703b3244ec39793ddae24ec3ae5c38691bdf413cced83b11bbf0b33f3fdbd62b
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SSDEEP
12288:BBg4aUfZ6LONqr4zUcHLdpn7nNNGEylDiTqSzNwhrKlbHu4b+hCVgw7AKXatYBaq:BBa+esTzNd6jgnlSFL9cxbIgwS1zZ
Malware Config
Extracted
C:\Users\Admin\Documents\Beni Oku !
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/568-0-0x0000000000360000-0x000000000052C000-memory.dmp family_chaos behavioral2/files/0x00070000000004e7-6.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 4136 bcdedit.exe 908 bcdedit.exe -
pid Process 2880 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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation svchost.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Beni Oku ! svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2364 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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Drops desktop.ini file(s) 34 IoCs
description ioc Process File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2170637797-568393320-3232933035-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\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\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\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\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\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\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\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\Public\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\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\AccountPictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\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\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\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\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0pf70w770.jpg" svchost.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 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 Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName vds.exe -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2996 vssadmin.exe -
Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000_Classes\Local Settings svchost.exe Key created \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000_Classes\Local Settings OpenWith.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2364 svchost.exe -
Suspicious behavior: EnumeratesProcesses 54 IoCs
pid Process 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe 2364 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe Token: SeDebugPrivilege 2364 svchost.exe Token: SeBackupPrivilege 2400 vssvc.exe Token: SeRestorePrivilege 2400 vssvc.exe Token: SeAuditPrivilege 2400 vssvc.exe Token: SeIncreaseQuotaPrivilege 3248 WMIC.exe Token: SeSecurityPrivilege 3248 WMIC.exe Token: SeTakeOwnershipPrivilege 3248 WMIC.exe Token: SeLoadDriverPrivilege 3248 WMIC.exe Token: SeSystemProfilePrivilege 3248 WMIC.exe Token: SeSystemtimePrivilege 3248 WMIC.exe Token: SeProfSingleProcessPrivilege 3248 WMIC.exe Token: SeIncBasePriorityPrivilege 3248 WMIC.exe Token: SeCreatePagefilePrivilege 3248 WMIC.exe Token: SeBackupPrivilege 3248 WMIC.exe Token: SeRestorePrivilege 3248 WMIC.exe Token: SeShutdownPrivilege 3248 WMIC.exe Token: SeDebugPrivilege 3248 WMIC.exe Token: SeSystemEnvironmentPrivilege 3248 WMIC.exe Token: SeRemoteShutdownPrivilege 3248 WMIC.exe Token: SeUndockPrivilege 3248 WMIC.exe Token: SeManageVolumePrivilege 3248 WMIC.exe Token: 33 3248 WMIC.exe Token: 34 3248 WMIC.exe Token: 35 3248 WMIC.exe Token: 36 3248 WMIC.exe Token: SeIncreaseQuotaPrivilege 3248 WMIC.exe Token: SeSecurityPrivilege 3248 WMIC.exe Token: SeTakeOwnershipPrivilege 3248 WMIC.exe Token: SeLoadDriverPrivilege 3248 WMIC.exe Token: SeSystemProfilePrivilege 3248 WMIC.exe Token: SeSystemtimePrivilege 3248 WMIC.exe Token: SeProfSingleProcessPrivilege 3248 WMIC.exe Token: SeIncBasePriorityPrivilege 3248 WMIC.exe Token: SeCreatePagefilePrivilege 3248 WMIC.exe Token: SeBackupPrivilege 3248 WMIC.exe Token: SeRestorePrivilege 3248 WMIC.exe Token: SeShutdownPrivilege 3248 WMIC.exe Token: SeDebugPrivilege 3248 WMIC.exe Token: SeSystemEnvironmentPrivilege 3248 WMIC.exe Token: SeRemoteShutdownPrivilege 3248 WMIC.exe Token: SeUndockPrivilege 3248 WMIC.exe Token: SeManageVolumePrivilege 3248 WMIC.exe Token: 33 3248 WMIC.exe Token: 34 3248 WMIC.exe Token: 35 3248 WMIC.exe Token: 36 3248 WMIC.exe Token: SeBackupPrivilege 3220 wbengine.exe Token: SeRestorePrivilege 3220 wbengine.exe Token: SeSecurityPrivilege 3220 wbengine.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1840 OpenWith.exe -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 568 wrote to memory of 2364 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 96 PID 568 wrote to memory of 2364 568 2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe 96 PID 2364 wrote to memory of 3584 2364 svchost.exe 102 PID 2364 wrote to memory of 3584 2364 svchost.exe 102 PID 3584 wrote to memory of 2996 3584 cmd.exe 104 PID 3584 wrote to memory of 2996 3584 cmd.exe 104 PID 3584 wrote to memory of 3248 3584 cmd.exe 107 PID 3584 wrote to memory of 3248 3584 cmd.exe 107 PID 2364 wrote to memory of 1228 2364 svchost.exe 109 PID 2364 wrote to memory of 1228 2364 svchost.exe 109 PID 1228 wrote to memory of 4136 1228 cmd.exe 111 PID 1228 wrote to memory of 4136 1228 cmd.exe 111 PID 1228 wrote to memory of 908 1228 cmd.exe 112 PID 1228 wrote to memory of 908 1228 cmd.exe 112 PID 2364 wrote to memory of 3768 2364 svchost.exe 113 PID 2364 wrote to memory of 3768 2364 svchost.exe 113 PID 3768 wrote to memory of 2880 3768 cmd.exe 115 PID 3768 wrote to memory of 2880 3768 cmd.exe 115 -
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\2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-15_947041f93f370b6a3668cbe0ac401582_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:568 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.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:2364 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:3584 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2996
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3248
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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:1228 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:4136
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:908
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:3768 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2880
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3364,i,8293235976513689021,7261015831736501466,262144 --variations-seed-version --mojo-platform-channel-handle=4332 /prefetch:81⤵PID:2500
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2400
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3220
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:4720
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:4268
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:1840
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.8MB
MD5947041f93f370b6a3668cbe0ac401582
SHA15e0664cbb97f5a5563f122b99f6bd620a81b2f37
SHA256412d40720095f3a6c8cbae9bb4cae40e4d3cb372962b11795792eec61f3de690
SHA51261dbb400f4c3f29ab0154ab2fd13fa57b5788b6f5f56b24c354e29ecd5b6a926703b3244ec39793ddae24ec3ae5c38691bdf413cced83b11bbf0b33f3fdbd62b
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740