Analysis
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max time kernel
140s -
max time network
106s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
17-05-2024 17:26
Behavioral task
behavioral1
Sample
2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe
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Size
43KB
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MD5
5a493651ebb3bfd33efff93951a1c39e
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SHA1
e3a5f99912ecae3059d4aaf0a337773a8c591d3c
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SHA256
e1319577144e33e76755ce24657a28b4bbbe2809fb2917590cc786f1b1293394
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SHA512
0adab6a1a1583dc1f05da8fe5e178e3ca4d569865a94776e281d6e2751645e2275a8f91551bc13f24f3c0a09b577b682e1f5026837e271ebdbe39f18c93bd69c
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SSDEEP
768:qqo2ypUFA4+kR7Fr9NQAkrJHzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz9:xo2h6417Fr9NQAkrJHzzzzzzzzzzzzz9
Malware Config
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/2944-0-0x0000000000390000-0x00000000003A2000-memory.dmp family_chaos behavioral2/files/0x00070000000233fc-6.dat family_chaos -
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Detects command variations typically used by ransomware 2 IoCs
resource yara_rule behavioral2/memory/2944-0-0x0000000000390000-0x00000000003A2000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral2/files/0x00070000000233fc-6.dat INDICATOR_SUSPICIOUS_GENRansomware -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 2288 bcdedit.exe 1964 bcdedit.exe -
pid Process 3884 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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation winlogon.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\winlogon.url winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini winlogon.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bot.txt winlogon.exe -
Executes dropped EXE 1 IoCs
pid Process 4604 winlogon.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\Downloads\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Documents\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini winlogon.exe File opened for modification C:\Users\Public\Documents\desktop.ini winlogon.exe File opened for modification C:\Users\Public\Music\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Links\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Videos\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini winlogon.exe File opened for modification C:\Users\Public\Videos\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini winlogon.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-4124900551-4068476067-3491212533-1000\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini winlogon.exe File opened for modification C:\Users\Public\Pictures\desktop.ini winlogon.exe File opened for modification C:\Users\Public\Desktop\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Music\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\Searches\desktop.ini winlogon.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini winlogon.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\g57jo3r8m.jpg" winlogon.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_DADY&PROD_HARDDISK\4&215468A5&0&000000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\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 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2428 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000_Classes\Local Settings winlogon.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 1252 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4604 winlogon.exe -
Suspicious behavior: EnumeratesProcesses 49 IoCs
pid Process 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe 4604 winlogon.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe Token: SeDebugPrivilege 4604 winlogon.exe Token: SeBackupPrivilege 3440 vssvc.exe Token: SeRestorePrivilege 3440 vssvc.exe Token: SeAuditPrivilege 3440 vssvc.exe Token: SeIncreaseQuotaPrivilege 4220 WMIC.exe Token: SeSecurityPrivilege 4220 WMIC.exe Token: SeTakeOwnershipPrivilege 4220 WMIC.exe Token: SeLoadDriverPrivilege 4220 WMIC.exe Token: SeSystemProfilePrivilege 4220 WMIC.exe Token: SeSystemtimePrivilege 4220 WMIC.exe Token: SeProfSingleProcessPrivilege 4220 WMIC.exe Token: SeIncBasePriorityPrivilege 4220 WMIC.exe Token: SeCreatePagefilePrivilege 4220 WMIC.exe Token: SeBackupPrivilege 4220 WMIC.exe Token: SeRestorePrivilege 4220 WMIC.exe Token: SeShutdownPrivilege 4220 WMIC.exe Token: SeDebugPrivilege 4220 WMIC.exe Token: SeSystemEnvironmentPrivilege 4220 WMIC.exe Token: SeRemoteShutdownPrivilege 4220 WMIC.exe Token: SeUndockPrivilege 4220 WMIC.exe Token: SeManageVolumePrivilege 4220 WMIC.exe Token: 33 4220 WMIC.exe Token: 34 4220 WMIC.exe Token: 35 4220 WMIC.exe Token: 36 4220 WMIC.exe Token: SeIncreaseQuotaPrivilege 4220 WMIC.exe Token: SeSecurityPrivilege 4220 WMIC.exe Token: SeTakeOwnershipPrivilege 4220 WMIC.exe Token: SeLoadDriverPrivilege 4220 WMIC.exe Token: SeSystemProfilePrivilege 4220 WMIC.exe Token: SeSystemtimePrivilege 4220 WMIC.exe Token: SeProfSingleProcessPrivilege 4220 WMIC.exe Token: SeIncBasePriorityPrivilege 4220 WMIC.exe Token: SeCreatePagefilePrivilege 4220 WMIC.exe Token: SeBackupPrivilege 4220 WMIC.exe Token: SeRestorePrivilege 4220 WMIC.exe Token: SeShutdownPrivilege 4220 WMIC.exe Token: SeDebugPrivilege 4220 WMIC.exe Token: SeSystemEnvironmentPrivilege 4220 WMIC.exe Token: SeRemoteShutdownPrivilege 4220 WMIC.exe Token: SeUndockPrivilege 4220 WMIC.exe Token: SeManageVolumePrivilege 4220 WMIC.exe Token: 33 4220 WMIC.exe Token: 34 4220 WMIC.exe Token: 35 4220 WMIC.exe Token: 36 4220 WMIC.exe Token: SeBackupPrivilege 1092 wbengine.exe Token: SeRestorePrivilege 1092 wbengine.exe Token: SeSecurityPrivilege 1092 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 2944 wrote to memory of 4604 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 91 PID 2944 wrote to memory of 4604 2944 2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe 91 PID 4604 wrote to memory of 532 4604 winlogon.exe 95 PID 4604 wrote to memory of 532 4604 winlogon.exe 95 PID 532 wrote to memory of 2428 532 cmd.exe 97 PID 532 wrote to memory of 2428 532 cmd.exe 97 PID 532 wrote to memory of 4220 532 cmd.exe 100 PID 532 wrote to memory of 4220 532 cmd.exe 100 PID 4604 wrote to memory of 928 4604 winlogon.exe 101 PID 4604 wrote to memory of 928 4604 winlogon.exe 101 PID 928 wrote to memory of 2288 928 cmd.exe 103 PID 928 wrote to memory of 2288 928 cmd.exe 103 PID 928 wrote to memory of 1964 928 cmd.exe 104 PID 928 wrote to memory of 1964 928 cmd.exe 104 PID 4604 wrote to memory of 4460 4604 winlogon.exe 105 PID 4604 wrote to memory of 4460 4604 winlogon.exe 105 PID 4460 wrote to memory of 3884 4460 cmd.exe 107 PID 4460 wrote to memory of 3884 4460 cmd.exe 107 PID 4604 wrote to memory of 1252 4604 winlogon.exe 111 PID 4604 wrote to memory of 1252 4604 winlogon.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\2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-17_5a493651ebb3bfd33efff93951a1c39e_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2944 -
C:\Users\Admin\AppData\Roaming\winlogon.exe"C:\Users\Admin\AppData\Roaming\winlogon.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:4604 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:532 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2428
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4220
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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:928 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2288
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1964
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:4460 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:3884
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\bot.txt3⤵
- Opens file in notepad (likely ransom note)
PID:1252
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3440
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1092
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2592
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:2252
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
43KB
MD55a493651ebb3bfd33efff93951a1c39e
SHA1e3a5f99912ecae3059d4aaf0a337773a8c591d3c
SHA256e1319577144e33e76755ce24657a28b4bbbe2809fb2917590cc786f1b1293394
SHA5120adab6a1a1583dc1f05da8fe5e178e3ca4d569865a94776e281d6e2751645e2275a8f91551bc13f24f3c0a09b577b682e1f5026837e271ebdbe39f18c93bd69c
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Filesize
25B
MD53b21b92f6121f297db717b540fff87b8
SHA1ad154c96bb9fcf9e671a807eb87c2083b9cf03a4
SHA256bbac48b7084c4e86d42c528b568702f8aa0a36b4a64aa99fcdf76901c8ca9cad
SHA512f2eac60dadb0b9b14609d4ae74fb10da354faa39bf0b6c121d2184e5d757275d376585a072b515840339abab95cd50352ebefb6b2746501ea20a3b2109973686