Analysis
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max time kernel
134s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
24-08-2024 16:36
Behavioral task
behavioral1
Sample
202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe
Resource
win10v2004-20240802-en
General
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Target
202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe
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Size
99KB
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MD5
4b51f50f9548a35fe71aa49b4310f9a5
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SHA1
87ee5b9c93e33dbfeb64f253d00d45110c1f768e
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SHA256
32cd9af5957086730ab43764925ef48398513fd17bf010f882cd5ed6746d29d5
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SHA512
bca7f5a1bb4619adc423a431f7d4e0d9505b32e866dd0e8cc9e929cc7440da8c284da2691eb75c4f0f04fec4074e04f5e6cf259bd36cd8b7f45d3e8d6ba17708
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SSDEEP
384:5kMg/bqoymcxtinWcGZvD7FJFr91C41r72sWmIxb5MeC:eqoyptoWcsjFr9T1rSsXIxbaeC
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/2368-1-0x0000000000170000-0x0000000000192000-memory.dmp family_chaos behavioral2/files/0x00070000000004e7-6.dat family_chaos -
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 1004 bcdedit.exe 2644 bcdedit.exe -
pid Process 568 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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\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 2908 svchost.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\Favorites\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\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\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\Desktop\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\Searches\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\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\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\OneDrive\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-1-5-21-2170637797-568393320-3232933035-1000\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\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Admin\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\Downloads\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\Accessories\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\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\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\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\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 4648 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 1992 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2908 svchost.exe -
Suspicious behavior: EnumeratesProcesses 50 IoCs
pid Process 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe 2908 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe Token: SeDebugPrivilege 2908 svchost.exe Token: SeBackupPrivilege 4296 vssvc.exe Token: SeRestorePrivilege 4296 vssvc.exe Token: SeAuditPrivilege 4296 vssvc.exe Token: SeIncreaseQuotaPrivilege 2504 WMIC.exe Token: SeSecurityPrivilege 2504 WMIC.exe Token: SeTakeOwnershipPrivilege 2504 WMIC.exe Token: SeLoadDriverPrivilege 2504 WMIC.exe Token: SeSystemProfilePrivilege 2504 WMIC.exe Token: SeSystemtimePrivilege 2504 WMIC.exe Token: SeProfSingleProcessPrivilege 2504 WMIC.exe Token: SeIncBasePriorityPrivilege 2504 WMIC.exe Token: SeCreatePagefilePrivilege 2504 WMIC.exe Token: SeBackupPrivilege 2504 WMIC.exe Token: SeRestorePrivilege 2504 WMIC.exe Token: SeShutdownPrivilege 2504 WMIC.exe Token: SeDebugPrivilege 2504 WMIC.exe Token: SeSystemEnvironmentPrivilege 2504 WMIC.exe Token: SeRemoteShutdownPrivilege 2504 WMIC.exe Token: SeUndockPrivilege 2504 WMIC.exe Token: SeManageVolumePrivilege 2504 WMIC.exe Token: 33 2504 WMIC.exe Token: 34 2504 WMIC.exe Token: 35 2504 WMIC.exe Token: 36 2504 WMIC.exe Token: SeIncreaseQuotaPrivilege 2504 WMIC.exe Token: SeSecurityPrivilege 2504 WMIC.exe Token: SeTakeOwnershipPrivilege 2504 WMIC.exe Token: SeLoadDriverPrivilege 2504 WMIC.exe Token: SeSystemProfilePrivilege 2504 WMIC.exe Token: SeSystemtimePrivilege 2504 WMIC.exe Token: SeProfSingleProcessPrivilege 2504 WMIC.exe Token: SeIncBasePriorityPrivilege 2504 WMIC.exe Token: SeCreatePagefilePrivilege 2504 WMIC.exe Token: SeBackupPrivilege 2504 WMIC.exe Token: SeRestorePrivilege 2504 WMIC.exe Token: SeShutdownPrivilege 2504 WMIC.exe Token: SeDebugPrivilege 2504 WMIC.exe Token: SeSystemEnvironmentPrivilege 2504 WMIC.exe Token: SeRemoteShutdownPrivilege 2504 WMIC.exe Token: SeUndockPrivilege 2504 WMIC.exe Token: SeManageVolumePrivilege 2504 WMIC.exe Token: 33 2504 WMIC.exe Token: 34 2504 WMIC.exe Token: 35 2504 WMIC.exe Token: 36 2504 WMIC.exe Token: SeBackupPrivilege 4444 wbengine.exe Token: SeRestorePrivilege 4444 wbengine.exe Token: SeSecurityPrivilege 4444 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 2368 wrote to memory of 2908 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 97 PID 2368 wrote to memory of 2908 2368 202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe 97 PID 2908 wrote to memory of 1212 2908 svchost.exe 102 PID 2908 wrote to memory of 1212 2908 svchost.exe 102 PID 1212 wrote to memory of 4648 1212 cmd.exe 105 PID 1212 wrote to memory of 4648 1212 cmd.exe 105 PID 1212 wrote to memory of 2504 1212 cmd.exe 109 PID 1212 wrote to memory of 2504 1212 cmd.exe 109 PID 2908 wrote to memory of 1988 2908 svchost.exe 110 PID 2908 wrote to memory of 1988 2908 svchost.exe 110 PID 1988 wrote to memory of 1004 1988 cmd.exe 112 PID 1988 wrote to memory of 1004 1988 cmd.exe 112 PID 1988 wrote to memory of 2644 1988 cmd.exe 113 PID 1988 wrote to memory of 2644 1988 cmd.exe 113 PID 2908 wrote to memory of 3136 2908 svchost.exe 114 PID 2908 wrote to memory of 3136 2908 svchost.exe 114 PID 3136 wrote to memory of 568 3136 cmd.exe 116 PID 3136 wrote to memory of 568 3136 cmd.exe 116 PID 2908 wrote to memory of 1992 2908 svchost.exe 120 PID 2908 wrote to memory of 1992 2908 svchost.exe 120 -
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\202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe"C:\Users\Admin\AppData\Local\Temp\202408244b51f50f9548a35fe71aa49b4310f9a5destroyerwannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2368 -
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:2908 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:1212 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:4648
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2504
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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:1988 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1004
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2644
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:3136 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:568
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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:1992
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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 --field-trial-handle=4112,i,8293235976513689021,7261015831736501466,262144 --variations-seed-version --mojo-platform-channel-handle=4628 /prefetch:81⤵PID:2028
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4296
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4444
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:4092
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:2324
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
99KB
MD54b51f50f9548a35fe71aa49b4310f9a5
SHA187ee5b9c93e33dbfeb64f253d00d45110c1f768e
SHA25632cd9af5957086730ab43764925ef48398513fd17bf010f882cd5ed6746d29d5
SHA512bca7f5a1bb4619adc423a431f7d4e0d9505b32e866dd0e8cc9e929cc7440da8c284da2691eb75c4f0f04fec4074e04f5e6cf259bd36cd8b7f45d3e8d6ba17708
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740