Analysis
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max time kernel
135s -
max time network
142s -
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 00:53
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
Processes:
resource yara_rule behavioral2/memory/2284-1-0x0000000000C60000-0x0000000000C70000-memory.dmp family_chaos behavioral2/files/0x0002000000022ae8-6.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
Processes:
bcdedit.exebcdedit.exepid Process 112 bcdedit.exe 3352 bcdedit.exe -
Processes:
wbadmin.exepid Process 2208 wbadmin.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exesvchost.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation svchost.exe -
Drops startup file 3 IoCs
Processes:
svchost.exedescription 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
Processes:
svchost.exepid Process 2236 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
Processes:
svchost.exedescription ioc Process File opened for modification C:\Users\Admin\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\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\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\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\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\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\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\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\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3442511616-637977696-3186306149-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\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\Start Menu\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\Videos\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\AccountPictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\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 -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
svchost.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2n3am0arh.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.
Processes:
vds.exedescription ioc Process 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000 vds.exe -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid Process 368 vssadmin.exe -
Modifies registry class 1 IoCs
Processes:
svchost.exedescription ioc Process Key created \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
Processes:
NOTEPAD.EXEpid Process 3076 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
svchost.exepid Process 2236 svchost.exe -
Suspicious behavior: EnumeratesProcesses 49 IoCs
Processes:
2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exesvchost.exepid Process 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe 2236 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
Processes:
2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exesvchost.exevssvc.exeWMIC.exewbengine.exedescription pid Process Token: SeDebugPrivilege 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe Token: SeDebugPrivilege 2236 svchost.exe Token: SeBackupPrivilege 4112 vssvc.exe Token: SeRestorePrivilege 4112 vssvc.exe Token: SeAuditPrivilege 4112 vssvc.exe Token: SeIncreaseQuotaPrivilege 1448 WMIC.exe Token: SeSecurityPrivilege 1448 WMIC.exe Token: SeTakeOwnershipPrivilege 1448 WMIC.exe Token: SeLoadDriverPrivilege 1448 WMIC.exe Token: SeSystemProfilePrivilege 1448 WMIC.exe Token: SeSystemtimePrivilege 1448 WMIC.exe Token: SeProfSingleProcessPrivilege 1448 WMIC.exe Token: SeIncBasePriorityPrivilege 1448 WMIC.exe Token: SeCreatePagefilePrivilege 1448 WMIC.exe Token: SeBackupPrivilege 1448 WMIC.exe Token: SeRestorePrivilege 1448 WMIC.exe Token: SeShutdownPrivilege 1448 WMIC.exe Token: SeDebugPrivilege 1448 WMIC.exe Token: SeSystemEnvironmentPrivilege 1448 WMIC.exe Token: SeRemoteShutdownPrivilege 1448 WMIC.exe Token: SeUndockPrivilege 1448 WMIC.exe Token: SeManageVolumePrivilege 1448 WMIC.exe Token: 33 1448 WMIC.exe Token: 34 1448 WMIC.exe Token: 35 1448 WMIC.exe Token: 36 1448 WMIC.exe Token: SeIncreaseQuotaPrivilege 1448 WMIC.exe Token: SeSecurityPrivilege 1448 WMIC.exe Token: SeTakeOwnershipPrivilege 1448 WMIC.exe Token: SeLoadDriverPrivilege 1448 WMIC.exe Token: SeSystemProfilePrivilege 1448 WMIC.exe Token: SeSystemtimePrivilege 1448 WMIC.exe Token: SeProfSingleProcessPrivilege 1448 WMIC.exe Token: SeIncBasePriorityPrivilege 1448 WMIC.exe Token: SeCreatePagefilePrivilege 1448 WMIC.exe Token: SeBackupPrivilege 1448 WMIC.exe Token: SeRestorePrivilege 1448 WMIC.exe Token: SeShutdownPrivilege 1448 WMIC.exe Token: SeDebugPrivilege 1448 WMIC.exe Token: SeSystemEnvironmentPrivilege 1448 WMIC.exe Token: SeRemoteShutdownPrivilege 1448 WMIC.exe Token: SeUndockPrivilege 1448 WMIC.exe Token: SeManageVolumePrivilege 1448 WMIC.exe Token: 33 1448 WMIC.exe Token: 34 1448 WMIC.exe Token: 35 1448 WMIC.exe Token: 36 1448 WMIC.exe Token: SeBackupPrivilege 3096 wbengine.exe Token: SeRestorePrivilege 3096 wbengine.exe Token: SeSecurityPrivilege 3096 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exesvchost.execmd.execmd.execmd.exedescription pid Process procid_target PID 2284 wrote to memory of 2236 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 89 PID 2284 wrote to memory of 2236 2284 2024-10-28_f4359c2c10233e0532b1456866d1dbfc_destroyer_wannacry.exe 89 PID 2236 wrote to memory of 1816 2236 svchost.exe 92 PID 2236 wrote to memory of 1816 2236 svchost.exe 92 PID 1816 wrote to memory of 368 1816 cmd.exe 95 PID 1816 wrote to memory of 368 1816 cmd.exe 95 PID 1816 wrote to memory of 1448 1816 cmd.exe 98 PID 1816 wrote to memory of 1448 1816 cmd.exe 98 PID 2236 wrote to memory of 3060 2236 svchost.exe 99 PID 2236 wrote to memory of 3060 2236 svchost.exe 99 PID 3060 wrote to memory of 112 3060 cmd.exe 101 PID 3060 wrote to memory of 112 3060 cmd.exe 101 PID 3060 wrote to memory of 3352 3060 cmd.exe 102 PID 3060 wrote to memory of 3352 3060 cmd.exe 102 PID 2236 wrote to memory of 2688 2236 svchost.exe 103 PID 2236 wrote to memory of 2688 2236 svchost.exe 103 PID 2688 wrote to memory of 2208 2688 cmd.exe 105 PID 2688 wrote to memory of 2208 2688 cmd.exe 105 PID 2236 wrote to memory of 3076 2236 svchost.exe 110 PID 2236 wrote to memory of 3076 2236 svchost.exe 110 -
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:2284 -
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:2236 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:1816 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:368
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1448
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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:3060 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:112
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:3352
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2688 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2208
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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:3076
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4112
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3096
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:4348
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:1960
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