Analysis
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max time kernel
134s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
28-10-2024 00:50
Behavioral task
behavioral1
Sample
2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe
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Size
41KB
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MD5
f4359c2c10233e0532b1456866d1dbfc
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SHA1
18f4e7c0d3d94f89995ab7d2abd4bf01b250021d
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SHA256
87501bb9f50174d8d306bbbbebe12903ff01d75de0cc32714ed82991b57a86c6
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SHA512
de6baac827e7ff507192f956c6d1e374d7c0594ae33b6e766d6d5691d888ff383b1fe8f3f8ba211755fb36257bb83ad0cc605722cde0963f280bf923acce90f4
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SSDEEP
768:6n3kI0xpAp6Br9StxXTVeVDC1SRUSnSk5mzAz2URJNZovB9VqiE7b7ed:A3kI3UBr9StGVhtSLzk2UR+v7VuSd
Malware Config
Extracted
C:\Users\Admin\Desktop\read_it.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/3464-1-0x0000000000320000-0x0000000000330000-memory.dmp family_chaos behavioral2/files/0x000d000000023add-6.dat family_chaos -
Chaos family
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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 1580 bcdedit.exe 4436 bcdedit.exe -
pid Process 4472 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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation svchost.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 548 svchost.exe -
Reads user/profile data of web browsers 3 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 svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-4089630652-1596403869-279772308-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\l3mvg94wy.jpg" svchost.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 3636 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2516 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 548 svchost.exe -
Suspicious behavior: EnumeratesProcesses 49 IoCs
pid Process 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe 548 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe Token: SeDebugPrivilege 548 svchost.exe Token: SeBackupPrivilege 3120 vssvc.exe Token: SeRestorePrivilege 3120 vssvc.exe Token: SeAuditPrivilege 3120 vssvc.exe Token: SeIncreaseQuotaPrivilege 4492 WMIC.exe Token: SeSecurityPrivilege 4492 WMIC.exe Token: SeTakeOwnershipPrivilege 4492 WMIC.exe Token: SeLoadDriverPrivilege 4492 WMIC.exe Token: SeSystemProfilePrivilege 4492 WMIC.exe Token: SeSystemtimePrivilege 4492 WMIC.exe Token: SeProfSingleProcessPrivilege 4492 WMIC.exe Token: SeIncBasePriorityPrivilege 4492 WMIC.exe Token: SeCreatePagefilePrivilege 4492 WMIC.exe Token: SeBackupPrivilege 4492 WMIC.exe Token: SeRestorePrivilege 4492 WMIC.exe Token: SeShutdownPrivilege 4492 WMIC.exe Token: SeDebugPrivilege 4492 WMIC.exe Token: SeSystemEnvironmentPrivilege 4492 WMIC.exe Token: SeRemoteShutdownPrivilege 4492 WMIC.exe Token: SeUndockPrivilege 4492 WMIC.exe Token: SeManageVolumePrivilege 4492 WMIC.exe Token: 33 4492 WMIC.exe Token: 34 4492 WMIC.exe Token: 35 4492 WMIC.exe Token: 36 4492 WMIC.exe Token: SeIncreaseQuotaPrivilege 4492 WMIC.exe Token: SeSecurityPrivilege 4492 WMIC.exe Token: SeTakeOwnershipPrivilege 4492 WMIC.exe Token: SeLoadDriverPrivilege 4492 WMIC.exe Token: SeSystemProfilePrivilege 4492 WMIC.exe Token: SeSystemtimePrivilege 4492 WMIC.exe Token: SeProfSingleProcessPrivilege 4492 WMIC.exe Token: SeIncBasePriorityPrivilege 4492 WMIC.exe Token: SeCreatePagefilePrivilege 4492 WMIC.exe Token: SeBackupPrivilege 4492 WMIC.exe Token: SeRestorePrivilege 4492 WMIC.exe Token: SeShutdownPrivilege 4492 WMIC.exe Token: SeDebugPrivilege 4492 WMIC.exe Token: SeSystemEnvironmentPrivilege 4492 WMIC.exe Token: SeRemoteShutdownPrivilege 4492 WMIC.exe Token: SeUndockPrivilege 4492 WMIC.exe Token: SeManageVolumePrivilege 4492 WMIC.exe Token: 33 4492 WMIC.exe Token: 34 4492 WMIC.exe Token: 35 4492 WMIC.exe Token: 36 4492 WMIC.exe Token: SeBackupPrivilege 2456 wbengine.exe Token: SeRestorePrivilege 2456 wbengine.exe Token: SeSecurityPrivilege 2456 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 3464 wrote to memory of 548 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 87 PID 3464 wrote to memory of 548 3464 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 87 PID 548 wrote to memory of 1596 548 svchost.exe 92 PID 548 wrote to memory of 1596 548 svchost.exe 92 PID 1596 wrote to memory of 3636 1596 cmd.exe 94 PID 1596 wrote to memory of 3636 1596 cmd.exe 94 PID 1596 wrote to memory of 4492 1596 cmd.exe 97 PID 1596 wrote to memory of 4492 1596 cmd.exe 97 PID 548 wrote to memory of 4140 548 svchost.exe 98 PID 548 wrote to memory of 4140 548 svchost.exe 98 PID 4140 wrote to memory of 1580 4140 cmd.exe 100 PID 4140 wrote to memory of 1580 4140 cmd.exe 100 PID 4140 wrote to memory of 4436 4140 cmd.exe 101 PID 4140 wrote to memory of 4436 4140 cmd.exe 101 PID 548 wrote to memory of 2120 548 svchost.exe 102 PID 548 wrote to memory of 2120 548 svchost.exe 102 PID 2120 wrote to memory of 4472 2120 cmd.exe 104 PID 2120 wrote to memory of 4472 2120 cmd.exe 104 PID 548 wrote to memory of 2516 548 svchost.exe 109 PID 548 wrote to memory of 2516 548 svchost.exe 109 -
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\2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3464 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.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:548 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:1596 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:3636
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4492
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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:4140 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1580
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:4436
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2120 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:4472
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt3⤵
- Opens file in notepad (likely ransom note)
PID:2516
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3120
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2456
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2228
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:2848
Network
MITRE ATT&CK Enterprise v15
Defense Evasion
Direct Volume Access
1Indicator Removal
3File Deletion
3Modify Registry
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
41KB
MD5f4359c2c10233e0532b1456866d1dbfc
SHA118f4e7c0d3d94f89995ab7d2abd4bf01b250021d
SHA25687501bb9f50174d8d306bbbbebe12903ff01d75de0cc32714ed82991b57a86c6
SHA512de6baac827e7ff507192f956c6d1e374d7c0594ae33b6e766d6d5691d888ff383b1fe8f3f8ba211755fb36257bb83ad0cc605722cde0963f280bf923acce90f4
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740