Analysis
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max time kernel
140s -
max time network
134s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2024 05:07
Behavioral task
behavioral1
Sample
2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe
Resource
win7-20240215-en
windows7-x64
21 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe
Resource
win10v2004-20240508-en
windows10-2004-x64
24 signatures
150 seconds
General
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Target
2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe
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Size
190KB
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MD5
9d36b1ea9bb453d9e8a36a9c47093d8f
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SHA1
fc498d5362a09ee10587846a6827b9eee4b97071
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SHA256
71af78b549961d7f2b3b493e79675ffad24c46b52e5b890eb6ab10654a57188a
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SHA512
16e18d0e6d8683cba59c06f6dc083812ac95935bde9b300347f137445eac884c3c9a8d21a39d2d6fa023a8ab2238d4f7e84f95f7946d4c683f60880fe1f7baa6
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SSDEEP
3072:VojMpkr9CYTDfGfse9dZ1Y7YHluSveP3JNs+zaQ15BMA7PUBmhgMcIeUw+1w+plq:Wxr9CY+fhhm7gcdP3z/BtPU0xZ1H
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/1724-0-0x00000000008B0000-0x00000000008E6000-memory.dmp family_chaos behavioral2/files/0x000a0000000232cf-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/1724-0-0x00000000008B0000-0x00000000008E6000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral2/files/0x000a0000000232cf-6.dat INDICATOR_SUSPICIOUS_GENRansomware -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 1060 bcdedit.exe 2176 bcdedit.exe -
Renames multiple (182) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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pid Process 4132 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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation winlogon.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\winlogon.url winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini winlogon.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bot.txt winlogon.exe -
Executes dropped EXE 1 IoCs
pid Process 4576 winlogon.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\Contacts\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini winlogon.exe File opened for modification C:\Users\Public\Desktop\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini winlogon.exe File opened for modification C:\Users\Public\Videos\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Music\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Searches\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini winlogon.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-1181767204-2009306918-3718769404-1000\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini winlogon.exe File opened for modification C:\Users\Public\Documents\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini winlogon.exe File opened for modification C:\Users\Public\Pictures\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Links\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Documents\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini winlogon.exe File opened for modification C:\Users\Public\Music\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Videos\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini winlogon.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0lexqv5il.jpg" winlogon.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_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 -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2408 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000_Classes\Local Settings winlogon.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 404 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4576 winlogon.exe -
Suspicious behavior: EnumeratesProcesses 52 IoCs
pid Process 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe 4576 winlogon.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe Token: SeDebugPrivilege 4576 winlogon.exe Token: SeBackupPrivilege 2872 vssvc.exe Token: SeRestorePrivilege 2872 vssvc.exe Token: SeAuditPrivilege 2872 vssvc.exe Token: SeIncreaseQuotaPrivilege 4808 WMIC.exe Token: SeSecurityPrivilege 4808 WMIC.exe Token: SeTakeOwnershipPrivilege 4808 WMIC.exe Token: SeLoadDriverPrivilege 4808 WMIC.exe Token: SeSystemProfilePrivilege 4808 WMIC.exe Token: SeSystemtimePrivilege 4808 WMIC.exe Token: SeProfSingleProcessPrivilege 4808 WMIC.exe Token: SeIncBasePriorityPrivilege 4808 WMIC.exe Token: SeCreatePagefilePrivilege 4808 WMIC.exe Token: SeBackupPrivilege 4808 WMIC.exe Token: SeRestorePrivilege 4808 WMIC.exe Token: SeShutdownPrivilege 4808 WMIC.exe Token: SeDebugPrivilege 4808 WMIC.exe Token: SeSystemEnvironmentPrivilege 4808 WMIC.exe Token: SeRemoteShutdownPrivilege 4808 WMIC.exe Token: SeUndockPrivilege 4808 WMIC.exe Token: SeManageVolumePrivilege 4808 WMIC.exe Token: 33 4808 WMIC.exe Token: 34 4808 WMIC.exe Token: 35 4808 WMIC.exe Token: 36 4808 WMIC.exe Token: SeIncreaseQuotaPrivilege 4808 WMIC.exe Token: SeSecurityPrivilege 4808 WMIC.exe Token: SeTakeOwnershipPrivilege 4808 WMIC.exe Token: SeLoadDriverPrivilege 4808 WMIC.exe Token: SeSystemProfilePrivilege 4808 WMIC.exe Token: SeSystemtimePrivilege 4808 WMIC.exe Token: SeProfSingleProcessPrivilege 4808 WMIC.exe Token: SeIncBasePriorityPrivilege 4808 WMIC.exe Token: SeCreatePagefilePrivilege 4808 WMIC.exe Token: SeBackupPrivilege 4808 WMIC.exe Token: SeRestorePrivilege 4808 WMIC.exe Token: SeShutdownPrivilege 4808 WMIC.exe Token: SeDebugPrivilege 4808 WMIC.exe Token: SeSystemEnvironmentPrivilege 4808 WMIC.exe Token: SeRemoteShutdownPrivilege 4808 WMIC.exe Token: SeUndockPrivilege 4808 WMIC.exe Token: SeManageVolumePrivilege 4808 WMIC.exe Token: 33 4808 WMIC.exe Token: 34 4808 WMIC.exe Token: 35 4808 WMIC.exe Token: 36 4808 WMIC.exe Token: SeBackupPrivilege 1544 wbengine.exe Token: SeRestorePrivilege 1544 wbengine.exe Token: SeSecurityPrivilege 1544 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 1724 wrote to memory of 4576 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 101 PID 1724 wrote to memory of 4576 1724 2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe 101 PID 4576 wrote to memory of 3168 4576 winlogon.exe 106 PID 4576 wrote to memory of 3168 4576 winlogon.exe 106 PID 3168 wrote to memory of 2408 3168 cmd.exe 108 PID 3168 wrote to memory of 2408 3168 cmd.exe 108 PID 3168 wrote to memory of 4808 3168 cmd.exe 111 PID 3168 wrote to memory of 4808 3168 cmd.exe 111 PID 4576 wrote to memory of 2788 4576 winlogon.exe 112 PID 4576 wrote to memory of 2788 4576 winlogon.exe 112 PID 2788 wrote to memory of 1060 2788 cmd.exe 114 PID 2788 wrote to memory of 1060 2788 cmd.exe 114 PID 2788 wrote to memory of 2176 2788 cmd.exe 115 PID 2788 wrote to memory of 2176 2788 cmd.exe 115 PID 4576 wrote to memory of 5100 4576 winlogon.exe 116 PID 4576 wrote to memory of 5100 4576 winlogon.exe 116 PID 5100 wrote to memory of 4132 5100 cmd.exe 118 PID 5100 wrote to memory of 4132 5100 cmd.exe 118 PID 4576 wrote to memory of 404 4576 winlogon.exe 122 PID 4576 wrote to memory of 404 4576 winlogon.exe 122 -
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\2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-19_9d36b1ea9bb453d9e8a36a9c47093d8f_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\Users\Admin\AppData\Roaming\winlogon.exe"C:\Users\Admin\AppData\Roaming\winlogon.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:4576 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:3168 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2408
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4808
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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:2788 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1060
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2176
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:5100 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:4132
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\bot.txt3⤵
- Opens file in notepad (likely ransom note)
PID:404
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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 --no-appcompat-clear --field-trial-handle=2856,i,2607710392823067546,4648797561512801463,262144 --variations-seed-version --mojo-platform-channel-handle=3940 /prefetch:81⤵PID:5032
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2872
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1544
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1504
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:4452
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
190KB
MD59d36b1ea9bb453d9e8a36a9c47093d8f
SHA1fc498d5362a09ee10587846a6827b9eee4b97071
SHA25671af78b549961d7f2b3b493e79675ffad24c46b52e5b890eb6ab10654a57188a
SHA51216e18d0e6d8683cba59c06f6dc083812ac95935bde9b300347f137445eac884c3c9a8d21a39d2d6fa023a8ab2238d4f7e84f95f7946d4c683f60880fe1f7baa6
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Filesize
45B
MD5bcf472682e05a4d1702575cec94ed0da
SHA1bd0c2afa0c2dce538cf492b2c08f7ed225f31151
SHA2563d84a71533a29cb73dcc6b74464701ea6b27b493542281dc0968c7778fa78397
SHA512e56d3da3a9378d938b68d2c7c9db2bd62b52c29911aedb7dbf321be13d625a2b77960b9c725ccf88fb6f6626dfb5a22fa7119153abd1ae3cbdb62b6e103cd86c