Analysis
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max time kernel
90s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
04-09-2024 06:41
Behavioral task
behavioral1
Sample
2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe
Resource
win7-20240903-en
windows7-x64
19 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
22 signatures
150 seconds
General
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Target
2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe
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Size
388KB
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MD5
944a94e955dcdfd6bf8d20ac6f09b0de
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SHA1
9f1debe6edea9c586a2b4376b6ec57047bec7e0d
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SHA256
f16e0c8253a5d0e297a752f506b266e1525c593ca1f78c71f252544f6d2c84c1
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SHA512
b966fb881df5d5faff8a2f808a81d0b288072b476155a40f4abcf5e0b298a7154a0102603187bfe3d7eedc1cb8e16d4ccd7c52f7a23694b31222f447afb8116c
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SSDEEP
6144:KvEr9gXp97YQY8kuOybsP5OaoWzw7zDUJZP6l8cND0:ID7VY8kuOybsP5fKl84D
Malware Config
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/4836-1-0x0000000000880000-0x00000000008E6000-memory.dmp family_chaos behavioral2/files/0x00090000000006cf-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 4608 bcdedit.exe 1836 bcdedit.exe -
pid Process 1144 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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation windowsdefender.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\windowsdefender.url windowsdefender.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini windowsdefender.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\README.txt windowsdefender.exe -
Executes dropped EXE 1 IoCs
pid Process 1976 windowsdefender.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 windowsdefender.exe File opened for modification C:\Users\Admin\Searches\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\Videos\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\Links\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\Documents\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini windowsdefender.exe File opened for modification C:\Users\Public\Documents\desktop.ini windowsdefender.exe File opened for modification C:\Users\Public\Music\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini windowsdefender.exe File opened for modification C:\Users\Public\Pictures\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\Music\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini windowsdefender.exe File opened for modification C:\Users\Public\Desktop\desktop.ini windowsdefender.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2392887640-1187051047-2909758433-1000\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini windowsdefender.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini windowsdefender.exe File opened for modification C:\Users\Public\Videos\desktop.ini windowsdefender.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\daixx1735.jpg" windowsdefender.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_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 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 2660 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000_Classes\Local Settings windowsdefender.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2716 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1976 windowsdefender.exe -
Suspicious behavior: EnumeratesProcesses 48 IoCs
pid Process 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe 1976 windowsdefender.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe Token: SeDebugPrivilege 1976 windowsdefender.exe Token: SeBackupPrivilege 4308 vssvc.exe Token: SeRestorePrivilege 4308 vssvc.exe Token: SeAuditPrivilege 4308 vssvc.exe Token: SeIncreaseQuotaPrivilege 3200 WMIC.exe Token: SeSecurityPrivilege 3200 WMIC.exe Token: SeTakeOwnershipPrivilege 3200 WMIC.exe Token: SeLoadDriverPrivilege 3200 WMIC.exe Token: SeSystemProfilePrivilege 3200 WMIC.exe Token: SeSystemtimePrivilege 3200 WMIC.exe Token: SeProfSingleProcessPrivilege 3200 WMIC.exe Token: SeIncBasePriorityPrivilege 3200 WMIC.exe Token: SeCreatePagefilePrivilege 3200 WMIC.exe Token: SeBackupPrivilege 3200 WMIC.exe Token: SeRestorePrivilege 3200 WMIC.exe Token: SeShutdownPrivilege 3200 WMIC.exe Token: SeDebugPrivilege 3200 WMIC.exe Token: SeSystemEnvironmentPrivilege 3200 WMIC.exe Token: SeRemoteShutdownPrivilege 3200 WMIC.exe Token: SeUndockPrivilege 3200 WMIC.exe Token: SeManageVolumePrivilege 3200 WMIC.exe Token: 33 3200 WMIC.exe Token: 34 3200 WMIC.exe Token: 35 3200 WMIC.exe Token: 36 3200 WMIC.exe Token: SeIncreaseQuotaPrivilege 3200 WMIC.exe Token: SeSecurityPrivilege 3200 WMIC.exe Token: SeTakeOwnershipPrivilege 3200 WMIC.exe Token: SeLoadDriverPrivilege 3200 WMIC.exe Token: SeSystemProfilePrivilege 3200 WMIC.exe Token: SeSystemtimePrivilege 3200 WMIC.exe Token: SeProfSingleProcessPrivilege 3200 WMIC.exe Token: SeIncBasePriorityPrivilege 3200 WMIC.exe Token: SeCreatePagefilePrivilege 3200 WMIC.exe Token: SeBackupPrivilege 3200 WMIC.exe Token: SeRestorePrivilege 3200 WMIC.exe Token: SeShutdownPrivilege 3200 WMIC.exe Token: SeDebugPrivilege 3200 WMIC.exe Token: SeSystemEnvironmentPrivilege 3200 WMIC.exe Token: SeRemoteShutdownPrivilege 3200 WMIC.exe Token: SeUndockPrivilege 3200 WMIC.exe Token: SeManageVolumePrivilege 3200 WMIC.exe Token: 33 3200 WMIC.exe Token: 34 3200 WMIC.exe Token: 35 3200 WMIC.exe Token: 36 3200 WMIC.exe Token: SeBackupPrivilege 4788 wbengine.exe Token: SeRestorePrivilege 4788 wbengine.exe Token: SeSecurityPrivilege 4788 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 4836 wrote to memory of 1976 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 90 PID 4836 wrote to memory of 1976 4836 2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe 90 PID 1976 wrote to memory of 60 1976 windowsdefender.exe 96 PID 1976 wrote to memory of 60 1976 windowsdefender.exe 96 PID 60 wrote to memory of 2660 60 cmd.exe 99 PID 60 wrote to memory of 2660 60 cmd.exe 99 PID 60 wrote to memory of 3200 60 cmd.exe 102 PID 60 wrote to memory of 3200 60 cmd.exe 102 PID 1976 wrote to memory of 2640 1976 windowsdefender.exe 103 PID 1976 wrote to memory of 2640 1976 windowsdefender.exe 103 PID 2640 wrote to memory of 4608 2640 cmd.exe 105 PID 2640 wrote to memory of 4608 2640 cmd.exe 105 PID 2640 wrote to memory of 1836 2640 cmd.exe 106 PID 2640 wrote to memory of 1836 2640 cmd.exe 106 PID 1976 wrote to memory of 640 1976 windowsdefender.exe 107 PID 1976 wrote to memory of 640 1976 windowsdefender.exe 107 PID 640 wrote to memory of 1144 640 cmd.exe 109 PID 640 wrote to memory of 1144 640 cmd.exe 109 PID 1976 wrote to memory of 2716 1976 windowsdefender.exe 113 PID 1976 wrote to memory of 2716 1976 windowsdefender.exe 113 -
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\2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-04_944a94e955dcdfd6bf8d20ac6f09b0de_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4836 -
C:\Users\Admin\AppData\Roaming\windowsdefender.exe"C:\Users\Admin\AppData\Roaming\windowsdefender.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:1976 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:60 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2660
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3200
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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:2640 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:4608
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1836
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:640 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1144
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\README.txt3⤵
- Opens file in notepad (likely ransom note)
PID:2716
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4308
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4788
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2812
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:1396
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
388KB
MD5944a94e955dcdfd6bf8d20ac6f09b0de
SHA19f1debe6edea9c586a2b4376b6ec57047bec7e0d
SHA256f16e0c8253a5d0e297a752f506b266e1525c593ca1f78c71f252544f6d2c84c1
SHA512b966fb881df5d5faff8a2f808a81d0b288072b476155a40f4abcf5e0b298a7154a0102603187bfe3d7eedc1cb8e16d4ccd7c52f7a23694b31222f447afb8116c
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Filesize
158B
MD5fd0f1ca751bd4de5c2a568bf3f988858
SHA1ea9f1c0c32d0cea7f908541c8e21f4ef85944f44
SHA25668f2dd3a115e2eb559140cef68b871dd60afa0f972bff9cbcfb4582ad65f6b5f
SHA5125bea4f1b6526fb6a8c29410a6aab20b294dc421619a5e83402ab58cf0eb574044257fd3d4bd0dabe32273f9fd0e90cbf167f092d6e37903633b73e73a90bf777