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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
18/10/2024, 18:29
Behavioral task
behavioral1
Sample
2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe
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Size
23KB
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MD5
796e7bcc691f6c21d235ae0c301b1081
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SHA1
7ef3bf6e556cbe7261abe797a0a3bb588cd09067
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SHA256
ff231952158f7314a3e73e46b92843e98ceff8d396092873d02eb98d0705da49
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SHA512
e5e7848208ed1377de2af39aeedf1e40a684de52699faa0c4445f66037f7c7ee884d96fb2d159f7432dbb2794a651c0e9375e7bb6152c68a423b14c631d245eb
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SSDEEP
384:+3Mg/bqo2Y5FOieDopGSkobJJ3r91CvpIBVjqe0:8qo2+FOBopjH3r9KIB4e0
Malware Config
Extracted
C:\Users\Admin\Documents\read_it.txt
https://tox.chat/download.html
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/3176-1-0x0000000000260000-0x000000000026C000-memory.dmp family_chaos behavioral2/files/0x0010000000023a0d-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 436 bcdedit.exe 2384 bcdedit.exe -
pid Process 2668 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 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_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 976 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\Pictures\Camera Roll\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\AccountPictures\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\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\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\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\Public\Music\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\Documents\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\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\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\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\Maintenance\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\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\Internet Explorer\Quick Launch\User Pinned\TaskBar\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\Recent\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\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 2380 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 2996 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 976 svchost.exe -
Suspicious behavior: EnumeratesProcesses 49 IoCs
pid Process 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe 976 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe Token: SeDebugPrivilege 976 svchost.exe Token: SeBackupPrivilege 4480 vssvc.exe Token: SeRestorePrivilege 4480 vssvc.exe Token: SeAuditPrivilege 4480 vssvc.exe Token: SeIncreaseQuotaPrivilege 4280 WMIC.exe Token: SeSecurityPrivilege 4280 WMIC.exe Token: SeTakeOwnershipPrivilege 4280 WMIC.exe Token: SeLoadDriverPrivilege 4280 WMIC.exe Token: SeSystemProfilePrivilege 4280 WMIC.exe Token: SeSystemtimePrivilege 4280 WMIC.exe Token: SeProfSingleProcessPrivilege 4280 WMIC.exe Token: SeIncBasePriorityPrivilege 4280 WMIC.exe Token: SeCreatePagefilePrivilege 4280 WMIC.exe Token: SeBackupPrivilege 4280 WMIC.exe Token: SeRestorePrivilege 4280 WMIC.exe Token: SeShutdownPrivilege 4280 WMIC.exe Token: SeDebugPrivilege 4280 WMIC.exe Token: SeSystemEnvironmentPrivilege 4280 WMIC.exe Token: SeRemoteShutdownPrivilege 4280 WMIC.exe Token: SeUndockPrivilege 4280 WMIC.exe Token: SeManageVolumePrivilege 4280 WMIC.exe Token: 33 4280 WMIC.exe Token: 34 4280 WMIC.exe Token: 35 4280 WMIC.exe Token: 36 4280 WMIC.exe Token: SeIncreaseQuotaPrivilege 4280 WMIC.exe Token: SeSecurityPrivilege 4280 WMIC.exe Token: SeTakeOwnershipPrivilege 4280 WMIC.exe Token: SeLoadDriverPrivilege 4280 WMIC.exe Token: SeSystemProfilePrivilege 4280 WMIC.exe Token: SeSystemtimePrivilege 4280 WMIC.exe Token: SeProfSingleProcessPrivilege 4280 WMIC.exe Token: SeIncBasePriorityPrivilege 4280 WMIC.exe Token: SeCreatePagefilePrivilege 4280 WMIC.exe Token: SeBackupPrivilege 4280 WMIC.exe Token: SeRestorePrivilege 4280 WMIC.exe Token: SeShutdownPrivilege 4280 WMIC.exe Token: SeDebugPrivilege 4280 WMIC.exe Token: SeSystemEnvironmentPrivilege 4280 WMIC.exe Token: SeRemoteShutdownPrivilege 4280 WMIC.exe Token: SeUndockPrivilege 4280 WMIC.exe Token: SeManageVolumePrivilege 4280 WMIC.exe Token: 33 4280 WMIC.exe Token: 34 4280 WMIC.exe Token: 35 4280 WMIC.exe Token: 36 4280 WMIC.exe Token: SeBackupPrivilege 4944 wbengine.exe Token: SeRestorePrivilege 4944 wbengine.exe Token: SeSecurityPrivilege 4944 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 3176 wrote to memory of 976 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 87 PID 3176 wrote to memory of 976 3176 2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe 87 PID 976 wrote to memory of 4512 976 svchost.exe 94 PID 976 wrote to memory of 4512 976 svchost.exe 94 PID 4512 wrote to memory of 2380 4512 cmd.exe 96 PID 4512 wrote to memory of 2380 4512 cmd.exe 96 PID 4512 wrote to memory of 4280 4512 cmd.exe 99 PID 4512 wrote to memory of 4280 4512 cmd.exe 99 PID 976 wrote to memory of 2784 976 svchost.exe 100 PID 976 wrote to memory of 2784 976 svchost.exe 100 PID 2784 wrote to memory of 436 2784 cmd.exe 102 PID 2784 wrote to memory of 436 2784 cmd.exe 102 PID 2784 wrote to memory of 2384 2784 cmd.exe 103 PID 2784 wrote to memory of 2384 2784 cmd.exe 103 PID 976 wrote to memory of 4936 976 svchost.exe 104 PID 976 wrote to memory of 4936 976 svchost.exe 104 PID 4936 wrote to memory of 2668 4936 cmd.exe 106 PID 4936 wrote to memory of 2668 4936 cmd.exe 106 PID 976 wrote to memory of 2996 976 svchost.exe 111 PID 976 wrote to memory of 2996 976 svchost.exe 111 -
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\2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-18_796e7bcc691f6c21d235ae0c301b1081_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3176 -
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:976 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:4512 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2380
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4280
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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:2784 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:436
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2384
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:4936 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2668
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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:2996
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4480
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4944
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1268
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:3148
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
23KB
MD5796e7bcc691f6c21d235ae0c301b1081
SHA17ef3bf6e556cbe7261abe797a0a3bb588cd09067
SHA256ff231952158f7314a3e73e46b92843e98ceff8d396092873d02eb98d0705da49
SHA512e5e7848208ed1377de2af39aeedf1e40a684de52699faa0c4445f66037f7c7ee884d96fb2d159f7432dbb2794a651c0e9375e7bb6152c68a423b14c631d245eb
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Filesize
815B
MD56ace40f2b0e2fa58f8a98bc1fadf70f2
SHA10e83b61f2a0a2b68fa9a530cf16a1bb40300d7f5
SHA256bc4e8b349bbba233664452506649d78668edc1969f0bccb74991b04531cd4fa1
SHA51296bc866ace3e07f02471090e85e2ebd2670ca627d5b2de3c73a4094bf7d5619c5b4358f867bcfd290235bc69e7ff880b614e34a5abeecf9f9b6970d4cce8a01c