Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
05-01-2025 02:23
Behavioral task
behavioral1
Sample
2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe
Resource
win10v2004-20241007-en
General
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Target
2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe
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Size
23KB
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MD5
51cf2eb736e269d199b3deb0f5b020fe
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SHA1
4d47e5a2fd0a271bcc0d0930883e90cb2bd82e1d
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SHA256
4cd3245a87ffc78e8f21e278cca6785c770852c250e88b24fd2ba14f9ac5743b
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SHA512
2e725fe3c5d34bc8e098c08603475b89e4f18ccf20ac27382b355ef35f143e96d33bf76a09b501c6e2fd42610fada9684531f7147324be39fbc0f5ba4615a11d
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SSDEEP
384:K3Mg/bqo2mcxtivpZqjuwzUjJwr91CKhxb5eed:wqo2ptMpgjKlwr9/hxbked
Malware Config
Extracted
C:\Users\Admin\Documents\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/1620-1-0x0000000000390000-0x000000000039C000-memory.dmp family_chaos behavioral2/files/0x000d000000023b8a-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 840 bcdedit.exe 388 bcdedit.exe -
pid Process 3700 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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\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 1208 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\Links\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\SendTo\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\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\AppData\Roaming\Microsoft\Windows\Recent\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\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\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\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe 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\Videos\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\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\User Pinned\TaskBar\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\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\Favorites\Links\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\Public\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 F:\$RECYCLE.BIN\S-1-5-21-3756129449-3121373848-4276368241-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\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\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 -
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_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 -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 3948 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 4176 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1208 svchost.exe -
Suspicious behavior: EnumeratesProcesses 49 IoCs
pid Process 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe 1208 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe Token: SeDebugPrivilege 1208 svchost.exe Token: SeBackupPrivilege 5036 vssvc.exe Token: SeRestorePrivilege 5036 vssvc.exe Token: SeAuditPrivilege 5036 vssvc.exe Token: SeIncreaseQuotaPrivilege 3216 WMIC.exe Token: SeSecurityPrivilege 3216 WMIC.exe Token: SeTakeOwnershipPrivilege 3216 WMIC.exe Token: SeLoadDriverPrivilege 3216 WMIC.exe Token: SeSystemProfilePrivilege 3216 WMIC.exe Token: SeSystemtimePrivilege 3216 WMIC.exe Token: SeProfSingleProcessPrivilege 3216 WMIC.exe Token: SeIncBasePriorityPrivilege 3216 WMIC.exe Token: SeCreatePagefilePrivilege 3216 WMIC.exe Token: SeBackupPrivilege 3216 WMIC.exe Token: SeRestorePrivilege 3216 WMIC.exe Token: SeShutdownPrivilege 3216 WMIC.exe Token: SeDebugPrivilege 3216 WMIC.exe Token: SeSystemEnvironmentPrivilege 3216 WMIC.exe Token: SeRemoteShutdownPrivilege 3216 WMIC.exe Token: SeUndockPrivilege 3216 WMIC.exe Token: SeManageVolumePrivilege 3216 WMIC.exe Token: 33 3216 WMIC.exe Token: 34 3216 WMIC.exe Token: 35 3216 WMIC.exe Token: 36 3216 WMIC.exe Token: SeIncreaseQuotaPrivilege 3216 WMIC.exe Token: SeSecurityPrivilege 3216 WMIC.exe Token: SeTakeOwnershipPrivilege 3216 WMIC.exe Token: SeLoadDriverPrivilege 3216 WMIC.exe Token: SeSystemProfilePrivilege 3216 WMIC.exe Token: SeSystemtimePrivilege 3216 WMIC.exe Token: SeProfSingleProcessPrivilege 3216 WMIC.exe Token: SeIncBasePriorityPrivilege 3216 WMIC.exe Token: SeCreatePagefilePrivilege 3216 WMIC.exe Token: SeBackupPrivilege 3216 WMIC.exe Token: SeRestorePrivilege 3216 WMIC.exe Token: SeShutdownPrivilege 3216 WMIC.exe Token: SeDebugPrivilege 3216 WMIC.exe Token: SeSystemEnvironmentPrivilege 3216 WMIC.exe Token: SeRemoteShutdownPrivilege 3216 WMIC.exe Token: SeUndockPrivilege 3216 WMIC.exe Token: SeManageVolumePrivilege 3216 WMIC.exe Token: 33 3216 WMIC.exe Token: 34 3216 WMIC.exe Token: 35 3216 WMIC.exe Token: 36 3216 WMIC.exe Token: SeBackupPrivilege 972 wbengine.exe Token: SeRestorePrivilege 972 wbengine.exe Token: SeSecurityPrivilege 972 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 1620 wrote to memory of 1208 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 82 PID 1620 wrote to memory of 1208 1620 2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe 82 PID 1208 wrote to memory of 968 1208 svchost.exe 84 PID 1208 wrote to memory of 968 1208 svchost.exe 84 PID 968 wrote to memory of 3948 968 cmd.exe 86 PID 968 wrote to memory of 3948 968 cmd.exe 86 PID 968 wrote to memory of 3216 968 cmd.exe 89 PID 968 wrote to memory of 3216 968 cmd.exe 89 PID 1208 wrote to memory of 2660 1208 svchost.exe 91 PID 1208 wrote to memory of 2660 1208 svchost.exe 91 PID 2660 wrote to memory of 840 2660 cmd.exe 93 PID 2660 wrote to memory of 840 2660 cmd.exe 93 PID 2660 wrote to memory of 388 2660 cmd.exe 94 PID 2660 wrote to memory of 388 2660 cmd.exe 94 PID 1208 wrote to memory of 1980 1208 svchost.exe 95 PID 1208 wrote to memory of 1980 1208 svchost.exe 95 PID 1980 wrote to memory of 3700 1980 cmd.exe 97 PID 1980 wrote to memory of 3700 1980 cmd.exe 97 PID 1208 wrote to memory of 4176 1208 svchost.exe 101 PID 1208 wrote to memory of 4176 1208 svchost.exe 101 -
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\2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2025-01-05_51cf2eb736e269d199b3deb0f5b020fe_chaos_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1620 -
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)
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1208 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:968 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:3948
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3216
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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:2660 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:840
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:388
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1980 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:3700
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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:4176
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5036
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:972
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1448
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:2164
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
23KB
MD551cf2eb736e269d199b3deb0f5b020fe
SHA14d47e5a2fd0a271bcc0d0930883e90cb2bd82e1d
SHA2564cd3245a87ffc78e8f21e278cca6785c770852c250e88b24fd2ba14f9ac5743b
SHA5122e725fe3c5d34bc8e098c08603475b89e4f18ccf20ac27382b355ef35f143e96d33bf76a09b501c6e2fd42610fada9684531f7147324be39fbc0f5ba4615a11d
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740