Analysis
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max time kernel
135s -
max time network
109s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
04-06-2024 11:26
Behavioral task
behavioral1
Sample
2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe
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Size
565KB
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MD5
0fc06a200b5caee925f0daf120725106
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SHA1
9f186aa6bbbf50c0a430d9bd1b3276164fbbce42
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SHA256
1130f367f8ae3ce57756116751f902489ab746751f0a4fd3b6cc737f9c2afa7a
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SHA512
695deb0c5e5b27e84dc3a62b57e159b84b79be960c1116f45bb40ac7f13170ea38cddf4837a4fdd2c8eff12633cc895b4c839c749470284939ff48bde845c49b
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SSDEEP
12288:xO4cmFlknCorfeHFK+i0aN+Ef7vk757l4PD8wtIRKg2zs+1YZeYZr8axeAC3pM:xnIean/tEoP3S
Malware Config
Extracted
C:\Users\Admin\Documents\# XRET #.txt
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/3436-1-0x0000000000150000-0x00000000001E4000-memory.dmp family_chaos behavioral2/files/0x000c000000023390-6.dat family_chaos -
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Detects command variations typically used by ransomware 2 IoCs
resource yara_rule behavioral2/memory/3436-1-0x0000000000150000-0x00000000001E4000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral2/files/0x000c000000023390-6.dat INDICATOR_SUSPICIOUS_GENRansomware -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 4768 bcdedit.exe 2412 bcdedit.exe -
Renames multiple (219) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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pid Process 2004 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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation XT.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XT.url XT.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini XT.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\# XRET #.txt XT.exe -
Executes dropped EXE 1 IoCs
pid Process 3668 XT.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\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini XT.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-4124900551-4068476067-3491212533-1000\desktop.ini XT.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini XT.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini XT.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini XT.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini XT.exe File opened for modification C:\Users\Public\Documents\desktop.ini XT.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini XT.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini XT.exe File opened for modification C:\Users\Admin\Videos\desktop.ini XT.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini XT.exe File opened for modification C:\Users\Admin\Links\desktop.ini XT.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini XT.exe File opened for modification C:\Users\Public\Pictures\desktop.ini XT.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini XT.exe File opened for modification C:\Users\Admin\Searches\desktop.ini XT.exe File opened for modification C:\Users\Admin\Documents\desktop.ini XT.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini XT.exe File opened for modification C:\Users\Public\Music\desktop.ini XT.exe File opened for modification C:\Users\Public\Desktop\desktop.ini XT.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini XT.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini XT.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini XT.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini XT.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini XT.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini XT.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini XT.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini XT.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini XT.exe File opened for modification C:\Users\Admin\Music\desktop.ini XT.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini XT.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini XT.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini XT.exe File opened for modification C:\Users\Public\Videos\desktop.ini XT.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\op6esqvb8.jpg" XT.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 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2520 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000_Classes\Local Settings XT.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3668 XT.exe -
Suspicious behavior: EnumeratesProcesses 47 IoCs
pid Process 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe 3668 XT.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe Token: SeDebugPrivilege 3668 XT.exe Token: SeBackupPrivilege 4400 vssvc.exe Token: SeRestorePrivilege 4400 vssvc.exe Token: SeAuditPrivilege 4400 vssvc.exe Token: SeIncreaseQuotaPrivilege 4372 WMIC.exe Token: SeSecurityPrivilege 4372 WMIC.exe Token: SeTakeOwnershipPrivilege 4372 WMIC.exe Token: SeLoadDriverPrivilege 4372 WMIC.exe Token: SeSystemProfilePrivilege 4372 WMIC.exe Token: SeSystemtimePrivilege 4372 WMIC.exe Token: SeProfSingleProcessPrivilege 4372 WMIC.exe Token: SeIncBasePriorityPrivilege 4372 WMIC.exe Token: SeCreatePagefilePrivilege 4372 WMIC.exe Token: SeBackupPrivilege 4372 WMIC.exe Token: SeRestorePrivilege 4372 WMIC.exe Token: SeShutdownPrivilege 4372 WMIC.exe Token: SeDebugPrivilege 4372 WMIC.exe Token: SeSystemEnvironmentPrivilege 4372 WMIC.exe Token: SeRemoteShutdownPrivilege 4372 WMIC.exe Token: SeUndockPrivilege 4372 WMIC.exe Token: SeManageVolumePrivilege 4372 WMIC.exe Token: 33 4372 WMIC.exe Token: 34 4372 WMIC.exe Token: 35 4372 WMIC.exe Token: 36 4372 WMIC.exe Token: SeIncreaseQuotaPrivilege 4372 WMIC.exe Token: SeSecurityPrivilege 4372 WMIC.exe Token: SeTakeOwnershipPrivilege 4372 WMIC.exe Token: SeLoadDriverPrivilege 4372 WMIC.exe Token: SeSystemProfilePrivilege 4372 WMIC.exe Token: SeSystemtimePrivilege 4372 WMIC.exe Token: SeProfSingleProcessPrivilege 4372 WMIC.exe Token: SeIncBasePriorityPrivilege 4372 WMIC.exe Token: SeCreatePagefilePrivilege 4372 WMIC.exe Token: SeBackupPrivilege 4372 WMIC.exe Token: SeRestorePrivilege 4372 WMIC.exe Token: SeShutdownPrivilege 4372 WMIC.exe Token: SeDebugPrivilege 4372 WMIC.exe Token: SeSystemEnvironmentPrivilege 4372 WMIC.exe Token: SeRemoteShutdownPrivilege 4372 WMIC.exe Token: SeUndockPrivilege 4372 WMIC.exe Token: SeManageVolumePrivilege 4372 WMIC.exe Token: 33 4372 WMIC.exe Token: 34 4372 WMIC.exe Token: 35 4372 WMIC.exe Token: 36 4372 WMIC.exe Token: SeBackupPrivilege 2536 wbengine.exe Token: SeRestorePrivilege 2536 wbengine.exe Token: SeSecurityPrivilege 2536 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 3436 wrote to memory of 3668 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 90 PID 3436 wrote to memory of 3668 3436 2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe 90 PID 3668 wrote to memory of 4580 3668 XT.exe 100 PID 3668 wrote to memory of 4580 3668 XT.exe 100 PID 4580 wrote to memory of 2520 4580 cmd.exe 102 PID 4580 wrote to memory of 2520 4580 cmd.exe 102 PID 4580 wrote to memory of 4372 4580 cmd.exe 105 PID 4580 wrote to memory of 4372 4580 cmd.exe 105 PID 3668 wrote to memory of 4960 3668 XT.exe 106 PID 3668 wrote to memory of 4960 3668 XT.exe 106 PID 4960 wrote to memory of 4768 4960 cmd.exe 108 PID 4960 wrote to memory of 4768 4960 cmd.exe 108 PID 4960 wrote to memory of 2412 4960 cmd.exe 109 PID 4960 wrote to memory of 2412 4960 cmd.exe 109 PID 3668 wrote to memory of 2628 3668 XT.exe 110 PID 3668 wrote to memory of 2628 3668 XT.exe 110 PID 2628 wrote to memory of 2004 2628 cmd.exe 112 PID 2628 wrote to memory of 2004 2628 cmd.exe 112 PID 3668 wrote to memory of 3008 3668 XT.exe 116 PID 3668 wrote to memory of 3008 3668 XT.exe 116 -
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\2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-04_0fc06a200b5caee925f0daf120725106_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3436 -
C:\Users\Admin\AppData\Roaming\XT.exe"C:\Users\Admin\AppData\Roaming\XT.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:3668 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:4580 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2520
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4372
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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:4960 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:4768
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2412
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2628 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2004
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\# XRET #.txt3⤵PID:3008
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4400
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2536
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:3252
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:4976
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
565KB
MD50fc06a200b5caee925f0daf120725106
SHA19f186aa6bbbf50c0a430d9bd1b3276164fbbce42
SHA2561130f367f8ae3ce57756116751f902489ab746751f0a4fd3b6cc737f9c2afa7a
SHA512695deb0c5e5b27e84dc3a62b57e159b84b79be960c1116f45bb40ac7f13170ea38cddf4837a4fdd2c8eff12633cc895b4c839c749470284939ff48bde845c49b
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Filesize
1KB
MD51a3d8cf29404870290401a7e5e9be84d
SHA1678c8c8a6bb38fc44870b91f6e787ce59efdc288
SHA2565ea4a9b5158f234a511d8fa155e68a2f5333f91f89f54893334750840952b3a3
SHA5122e34c2e81b7adaeac78edef60566d28a661590a4552cc5e357718c31737dcfeb5a72a4733acf9427bcdbe990ab6f2712283ac5b34d005d83b8305f1b98da7c82