Analysis
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max time kernel
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max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
11-07-2024 05:00
Behavioral task
behavioral1
Sample
2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe
Resource
win10v2004-20240709-en
General
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Target
2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe
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Size
5.0MB
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MD5
70b000a4afb6cd659c70068ae9a8da4e
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SHA1
8e9f0c75ba7f08932aab4aac86ee33340314d879
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SHA256
e788b672c860e6088ddb0b042675f3ce2999bef473479598108896ffbb916bea
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SHA512
f40aae321ecde244521177d7d6a5127592c3e64c6babc27952464344e8c4f4f5449be8984c2ddb69ab6955b4537c2c717a968317b317d528f5f0d3861de61854
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SSDEEP
24576:xGNDuv4+PU64AoPrWdbb5+HRBlwOdXlI1y2Y5LwUMlx3IXVjUlRnua/OZuNG12Ho:ayyaQHzN9eOR2Rnu2GBcH56F2u0
Malware Config
Extracted
C:\Users\Admin\Documents\read me.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/4860-1-0x00000000004F0000-0x00000000009F4000-memory.dmp family_chaos behavioral2/files/0x000c000000023374-5.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 3876 bcdedit.exe 3492 bcdedit.exe -
Renames multiple (192) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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pid Process 4828 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-1-5-21-701583114-2636601053-947405450-1000\Control Panel\International\Geo\Nation 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\Control Panel\International\Geo\Nation Runtime Broker.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Runtime Broker.url Runtime Broker.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini Runtime Broker.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read me.txt Runtime Broker.exe -
Executes dropped EXE 1 IoCs
pid Process 4108 Runtime Broker.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 F:\$RECYCLE.BIN\S-1-5-21-701583114-2636601053-947405450-1000\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\Links\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\Searches\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Public\Desktop\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Public\Pictures\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Public\Music\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\Documents\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\Music\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini Runtime Broker.exe File opened for modification C:\Users\Public\Documents\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Public\Videos\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\Videos\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini Runtime Broker.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini Runtime Broker.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\makem9zy5.jpg" Runtime Broker.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\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\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 -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2464 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000_Classes\Local Settings Runtime Broker.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4108 Runtime Broker.exe -
Suspicious behavior: EnumeratesProcesses 45 IoCs
pid Process 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe 4108 Runtime Broker.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe Token: SeDebugPrivilege 4108 Runtime Broker.exe Token: SeBackupPrivilege 2332 vssvc.exe Token: SeRestorePrivilege 2332 vssvc.exe Token: SeAuditPrivilege 2332 vssvc.exe Token: SeIncreaseQuotaPrivilege 3868 WMIC.exe Token: SeSecurityPrivilege 3868 WMIC.exe Token: SeTakeOwnershipPrivilege 3868 WMIC.exe Token: SeLoadDriverPrivilege 3868 WMIC.exe Token: SeSystemProfilePrivilege 3868 WMIC.exe Token: SeSystemtimePrivilege 3868 WMIC.exe Token: SeProfSingleProcessPrivilege 3868 WMIC.exe Token: SeIncBasePriorityPrivilege 3868 WMIC.exe Token: SeCreatePagefilePrivilege 3868 WMIC.exe Token: SeBackupPrivilege 3868 WMIC.exe Token: SeRestorePrivilege 3868 WMIC.exe Token: SeShutdownPrivilege 3868 WMIC.exe Token: SeDebugPrivilege 3868 WMIC.exe Token: SeSystemEnvironmentPrivilege 3868 WMIC.exe Token: SeRemoteShutdownPrivilege 3868 WMIC.exe Token: SeUndockPrivilege 3868 WMIC.exe Token: SeManageVolumePrivilege 3868 WMIC.exe Token: 33 3868 WMIC.exe Token: 34 3868 WMIC.exe Token: 35 3868 WMIC.exe Token: 36 3868 WMIC.exe Token: SeIncreaseQuotaPrivilege 3868 WMIC.exe Token: SeSecurityPrivilege 3868 WMIC.exe Token: SeTakeOwnershipPrivilege 3868 WMIC.exe Token: SeLoadDriverPrivilege 3868 WMIC.exe Token: SeSystemProfilePrivilege 3868 WMIC.exe Token: SeSystemtimePrivilege 3868 WMIC.exe Token: SeProfSingleProcessPrivilege 3868 WMIC.exe Token: SeIncBasePriorityPrivilege 3868 WMIC.exe Token: SeCreatePagefilePrivilege 3868 WMIC.exe Token: SeBackupPrivilege 3868 WMIC.exe Token: SeRestorePrivilege 3868 WMIC.exe Token: SeShutdownPrivilege 3868 WMIC.exe Token: SeDebugPrivilege 3868 WMIC.exe Token: SeSystemEnvironmentPrivilege 3868 WMIC.exe Token: SeRemoteShutdownPrivilege 3868 WMIC.exe Token: SeUndockPrivilege 3868 WMIC.exe Token: SeManageVolumePrivilege 3868 WMIC.exe Token: 33 3868 WMIC.exe Token: 34 3868 WMIC.exe Token: 35 3868 WMIC.exe Token: 36 3868 WMIC.exe Token: SeBackupPrivilege 4372 wbengine.exe Token: SeRestorePrivilege 4372 wbengine.exe Token: SeSecurityPrivilege 4372 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 4860 wrote to memory of 4108 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 86 PID 4860 wrote to memory of 4108 4860 2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe 86 PID 4108 wrote to memory of 2132 4108 Runtime Broker.exe 88 PID 4108 wrote to memory of 2132 4108 Runtime Broker.exe 88 PID 2132 wrote to memory of 2464 2132 cmd.exe 90 PID 2132 wrote to memory of 2464 2132 cmd.exe 90 PID 2132 wrote to memory of 3868 2132 cmd.exe 93 PID 2132 wrote to memory of 3868 2132 cmd.exe 93 PID 4108 wrote to memory of 2184 4108 Runtime Broker.exe 95 PID 4108 wrote to memory of 2184 4108 Runtime Broker.exe 95 PID 2184 wrote to memory of 3876 2184 cmd.exe 97 PID 2184 wrote to memory of 3876 2184 cmd.exe 97 PID 2184 wrote to memory of 3492 2184 cmd.exe 98 PID 2184 wrote to memory of 3492 2184 cmd.exe 98 PID 4108 wrote to memory of 1724 4108 Runtime Broker.exe 99 PID 4108 wrote to memory of 1724 4108 Runtime Broker.exe 99 PID 1724 wrote to memory of 4828 1724 cmd.exe 101 PID 1724 wrote to memory of 4828 1724 cmd.exe 101 PID 4108 wrote to memory of 920 4108 Runtime Broker.exe 105 PID 4108 wrote to memory of 920 4108 Runtime Broker.exe 105 -
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\2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-07-11_70b000a4afb6cd659c70068ae9a8da4e_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4860 -
C:\Users\Admin\AppData\Roaming\Runtime Broker.exe"C:\Users\Admin\AppData\Roaming\Runtime Broker.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:4108 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2132 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2464
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3868
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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:2184 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:3876
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:3492
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:4828
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read me.txt3⤵PID:920
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2332
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4372
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:392
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:1512
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
5.0MB
MD570b000a4afb6cd659c70068ae9a8da4e
SHA18e9f0c75ba7f08932aab4aac86ee33340314d879
SHA256e788b672c860e6088ddb0b042675f3ce2999bef473479598108896ffbb916bea
SHA512f40aae321ecde244521177d7d6a5127592c3e64c6babc27952464344e8c4f4f5449be8984c2ddb69ab6955b4537c2c717a968317b317d528f5f0d3861de61854
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740