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Analysis
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max time kernel
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max time network
138s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
22/03/2024, 23:31
Behavioral task
behavioral1
Sample
2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe
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Size
120KB
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MD5
5d4c5f3457c4487fe26df768ed8f3d2b
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SHA1
f5f3df7d11e06dc158ac8183a8bde5895f8ea251
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SHA256
19c393a4787d325984d850d8f02db1f302819b808952f72c332251d5d95f7c32
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SHA512
793b8917ad068b77bcc7d771a28069ac432cfb441438e1a1f159fe94cbb2aa550fb2cc47d7354e30275ce2df402774902c987ad9b9be900f3748281f13a30e9a
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SSDEEP
3072:QoIcFr9LvJxaJ3e6ua0g0qcB2f/u80kcmU/C7eJBz4Jtu:dr9LvkbOqguxU6f4
Malware Config
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 3 IoCs
resource yara_rule behavioral2/memory/2304-0-0x0000000000A70000-0x0000000000A94000-memory.dmp family_chaos behavioral2/files/0x0004000000022d20-6.dat family_chaos behavioral2/files/0x0004000000022d20-11.dat family_chaos -
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Detects command variations typically used by ransomware 3 IoCs
resource yara_rule behavioral2/memory/2304-0-0x0000000000A70000-0x0000000000A94000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral2/files/0x0004000000022d20-6.dat INDICATOR_SUSPICIOUS_GENRansomware behavioral2/files/0x0004000000022d20-11.dat INDICATOR_SUSPICIOUS_GENRansomware -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 284 bcdedit.exe 4788 bcdedit.exe -
pid Process 4236 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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation PrivateChat.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PrivateChat.url PrivateChat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini PrivateChat.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\README.txt PrivateChat.exe -
Executes dropped EXE 1 IoCs
pid Process 1196 PrivateChat.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\Music\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini PrivateChat.exe File opened for modification C:\Users\Public\Documents\desktop.ini PrivateChat.exe File opened for modification C:\Users\Public\Pictures\desktop.ini PrivateChat.exe File opened for modification C:\Users\Public\Desktop\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\Links\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\Documents\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini PrivateChat.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3808065738-1666277613-1125846146-1000\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\Videos\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\Searches\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini PrivateChat.exe File opened for modification C:\Users\Public\Music\desktop.ini PrivateChat.exe File opened for modification C:\Users\Public\Videos\desktop.ini PrivateChat.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini PrivateChat.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\z0sw81dda.jpg" PrivateChat.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 value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_DADY_DVD-ROM\4&215468A5&0&010000 vds.exe -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 932 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000_Classes\Local Settings PrivateChat.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 660 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1196 PrivateChat.exe -
Suspicious behavior: EnumeratesProcesses 51 IoCs
pid Process 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe 1196 PrivateChat.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe Token: SeDebugPrivilege 1196 PrivateChat.exe Token: SeBackupPrivilege 5028 vssvc.exe Token: SeRestorePrivilege 5028 vssvc.exe Token: SeAuditPrivilege 5028 vssvc.exe Token: SeIncreaseQuotaPrivilege 752 WMIC.exe Token: SeSecurityPrivilege 752 WMIC.exe Token: SeTakeOwnershipPrivilege 752 WMIC.exe Token: SeLoadDriverPrivilege 752 WMIC.exe Token: SeSystemProfilePrivilege 752 WMIC.exe Token: SeSystemtimePrivilege 752 WMIC.exe Token: SeProfSingleProcessPrivilege 752 WMIC.exe Token: SeIncBasePriorityPrivilege 752 WMIC.exe Token: SeCreatePagefilePrivilege 752 WMIC.exe Token: SeBackupPrivilege 752 WMIC.exe Token: SeRestorePrivilege 752 WMIC.exe Token: SeShutdownPrivilege 752 WMIC.exe Token: SeDebugPrivilege 752 WMIC.exe Token: SeSystemEnvironmentPrivilege 752 WMIC.exe Token: SeRemoteShutdownPrivilege 752 WMIC.exe Token: SeUndockPrivilege 752 WMIC.exe Token: SeManageVolumePrivilege 752 WMIC.exe Token: 33 752 WMIC.exe Token: 34 752 WMIC.exe Token: 35 752 WMIC.exe Token: 36 752 WMIC.exe Token: SeIncreaseQuotaPrivilege 752 WMIC.exe Token: SeSecurityPrivilege 752 WMIC.exe Token: SeTakeOwnershipPrivilege 752 WMIC.exe Token: SeLoadDriverPrivilege 752 WMIC.exe Token: SeSystemProfilePrivilege 752 WMIC.exe Token: SeSystemtimePrivilege 752 WMIC.exe Token: SeProfSingleProcessPrivilege 752 WMIC.exe Token: SeIncBasePriorityPrivilege 752 WMIC.exe Token: SeCreatePagefilePrivilege 752 WMIC.exe Token: SeBackupPrivilege 752 WMIC.exe Token: SeRestorePrivilege 752 WMIC.exe Token: SeShutdownPrivilege 752 WMIC.exe Token: SeDebugPrivilege 752 WMIC.exe Token: SeSystemEnvironmentPrivilege 752 WMIC.exe Token: SeRemoteShutdownPrivilege 752 WMIC.exe Token: SeUndockPrivilege 752 WMIC.exe Token: SeManageVolumePrivilege 752 WMIC.exe Token: 33 752 WMIC.exe Token: 34 752 WMIC.exe Token: 35 752 WMIC.exe Token: 36 752 WMIC.exe Token: SeBackupPrivilege 2368 wbengine.exe Token: SeRestorePrivilege 2368 wbengine.exe Token: SeSecurityPrivilege 2368 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 2304 wrote to memory of 1196 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 98 PID 2304 wrote to memory of 1196 2304 2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe 98 PID 1196 wrote to memory of 4740 1196 PrivateChat.exe 110 PID 1196 wrote to memory of 4740 1196 PrivateChat.exe 110 PID 4740 wrote to memory of 932 4740 cmd.exe 112 PID 4740 wrote to memory of 932 4740 cmd.exe 112 PID 4740 wrote to memory of 752 4740 cmd.exe 115 PID 4740 wrote to memory of 752 4740 cmd.exe 115 PID 1196 wrote to memory of 4328 1196 PrivateChat.exe 116 PID 1196 wrote to memory of 4328 1196 PrivateChat.exe 116 PID 4328 wrote to memory of 284 4328 cmd.exe 118 PID 4328 wrote to memory of 284 4328 cmd.exe 118 PID 4328 wrote to memory of 4788 4328 cmd.exe 119 PID 4328 wrote to memory of 4788 4328 cmd.exe 119 PID 1196 wrote to memory of 3036 1196 PrivateChat.exe 120 PID 1196 wrote to memory of 3036 1196 PrivateChat.exe 120 PID 3036 wrote to memory of 4236 3036 cmd.exe 122 PID 3036 wrote to memory of 4236 3036 cmd.exe 122 PID 1196 wrote to memory of 660 1196 PrivateChat.exe 126 PID 1196 wrote to memory of 660 1196 PrivateChat.exe 126 -
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\2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-22_5d4c5f3457c4487fe26df768ed8f3d2b_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2304 -
C:\Users\Admin\AppData\Roaming\PrivateChat.exe"C:\Users\Admin\AppData\Roaming\PrivateChat.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:1196 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:4740 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:932
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:752
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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:4328 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:284
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:4788
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:3036 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:4236
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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:660
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5028
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2368
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:280
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:1684
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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 --mojo-platform-channel-handle=4056 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:81⤵PID:1276
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
120KB
MD55d4c5f3457c4487fe26df768ed8f3d2b
SHA1f5f3df7d11e06dc158ac8183a8bde5895f8ea251
SHA25619c393a4787d325984d850d8f02db1f302819b808952f72c332251d5d95f7c32
SHA512793b8917ad068b77bcc7d771a28069ac432cfb441438e1a1f159fe94cbb2aa550fb2cc47d7354e30275ce2df402774902c987ad9b9be900f3748281f13a30e9a
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Filesize
366B
MD5a9739643e50a5d9ca0f162feb7846dd5
SHA1d10c5feedd35fd2a24cd1266014ae8adaad22fd3
SHA256e611bd6ae4702f7496dda7ae78a5df097d1e6858c7fa38b3b9b7140379f7d51c
SHA512cb5e3943ccce39f10a899a4900952b702601840a2e6dd8e385ebed1e4e7b041f8440dd7dde229c5d28cf82f380b17f498a3e6cb8426d984b71a4115de3df9552