Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
09-04-2024 13:49
Behavioral task
behavioral1
Sample
2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe
Resource
win10v2004-20240226-en
General
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Target
2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe
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Size
3.0MB
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MD5
50ab878c0ffda2281e3cd115ea3555e3
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SHA1
468d8ba8b2fc48795c168ff82836e2e9fb403b09
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SHA256
0ff045b16d8495a7958a1101978bff2f434e41982a5cf6b6089ece5fd6e3ba67
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SHA512
326001ed5f543a3067cb915dea17e6f8331420bb31b2dcec0dfca457d92d14e36a16be62a7a7d94dd5870df99f5b7c9ddc10fbbe8fe37a99298954b779452b9e
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SSDEEP
49152:L9HPCClB5eCCtPpj6jylS1lx0oFtUCt8cTjpu9DtKChYQHCtP:
Malware Config
Extracted
C:\Users\Admin\Desktop\READ THIS YOU FAGGOT.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/4116-0-0x0000000000370000-0x0000000000678000-memory.dmp family_chaos behavioral2/files/0x000300000002276e-6.dat family_chaos -
Deletes shadow copies 2 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/4116-0-0x0000000000370000-0x0000000000678000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral2/files/0x000300000002276e-6.dat INDICATOR_SUSPICIOUS_GENRansomware -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 4084 bcdedit.exe 1684 bcdedit.exe -
pid Process 1444 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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\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 THIS YOU FAGGOT.txt svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1804 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\OneDrive\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\Public\Videos\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-983155329-280873152-1838004294-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\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\Links\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\Accessories\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\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\Pictures\Saved Pictures\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\Recent\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\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\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\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\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\Videos\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\Contacts\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\Administrative Tools\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\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\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\Start Menu\Programs\Accessibility\desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\y0b2b5h96.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.
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_DADY&PROD_DADY_DVD-ROM\4&215468A5&0&010000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_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 1436 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000_Classes\Local Settings svchost.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1804 svchost.exe -
Suspicious behavior: EnumeratesProcesses 49 IoCs
pid Process 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe 1804 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe Token: SeDebugPrivilege 1804 svchost.exe Token: SeBackupPrivilege 4592 vssvc.exe Token: SeRestorePrivilege 4592 vssvc.exe Token: SeAuditPrivilege 4592 vssvc.exe Token: SeIncreaseQuotaPrivilege 4904 WMIC.exe Token: SeSecurityPrivilege 4904 WMIC.exe Token: SeTakeOwnershipPrivilege 4904 WMIC.exe Token: SeLoadDriverPrivilege 4904 WMIC.exe Token: SeSystemProfilePrivilege 4904 WMIC.exe Token: SeSystemtimePrivilege 4904 WMIC.exe Token: SeProfSingleProcessPrivilege 4904 WMIC.exe Token: SeIncBasePriorityPrivilege 4904 WMIC.exe Token: SeCreatePagefilePrivilege 4904 WMIC.exe Token: SeBackupPrivilege 4904 WMIC.exe Token: SeRestorePrivilege 4904 WMIC.exe Token: SeShutdownPrivilege 4904 WMIC.exe Token: SeDebugPrivilege 4904 WMIC.exe Token: SeSystemEnvironmentPrivilege 4904 WMIC.exe Token: SeRemoteShutdownPrivilege 4904 WMIC.exe Token: SeUndockPrivilege 4904 WMIC.exe Token: SeManageVolumePrivilege 4904 WMIC.exe Token: 33 4904 WMIC.exe Token: 34 4904 WMIC.exe Token: 35 4904 WMIC.exe Token: 36 4904 WMIC.exe Token: SeIncreaseQuotaPrivilege 4904 WMIC.exe Token: SeSecurityPrivilege 4904 WMIC.exe Token: SeTakeOwnershipPrivilege 4904 WMIC.exe Token: SeLoadDriverPrivilege 4904 WMIC.exe Token: SeSystemProfilePrivilege 4904 WMIC.exe Token: SeSystemtimePrivilege 4904 WMIC.exe Token: SeProfSingleProcessPrivilege 4904 WMIC.exe Token: SeIncBasePriorityPrivilege 4904 WMIC.exe Token: SeCreatePagefilePrivilege 4904 WMIC.exe Token: SeBackupPrivilege 4904 WMIC.exe Token: SeRestorePrivilege 4904 WMIC.exe Token: SeShutdownPrivilege 4904 WMIC.exe Token: SeDebugPrivilege 4904 WMIC.exe Token: SeSystemEnvironmentPrivilege 4904 WMIC.exe Token: SeRemoteShutdownPrivilege 4904 WMIC.exe Token: SeUndockPrivilege 4904 WMIC.exe Token: SeManageVolumePrivilege 4904 WMIC.exe Token: 33 4904 WMIC.exe Token: 34 4904 WMIC.exe Token: 35 4904 WMIC.exe Token: 36 4904 WMIC.exe Token: SeBackupPrivilege 704 wbengine.exe Token: SeRestorePrivilege 704 wbengine.exe Token: SeSecurityPrivilege 704 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 4116 wrote to memory of 1804 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 89 PID 4116 wrote to memory of 1804 4116 2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe 89 PID 1804 wrote to memory of 4792 1804 svchost.exe 94 PID 1804 wrote to memory of 4792 1804 svchost.exe 94 PID 4792 wrote to memory of 1436 4792 cmd.exe 96 PID 4792 wrote to memory of 1436 4792 cmd.exe 96 PID 4792 wrote to memory of 4904 4792 cmd.exe 99 PID 4792 wrote to memory of 4904 4792 cmd.exe 99 PID 1804 wrote to memory of 2864 1804 svchost.exe 100 PID 1804 wrote to memory of 2864 1804 svchost.exe 100 PID 2864 wrote to memory of 4084 2864 cmd.exe 102 PID 2864 wrote to memory of 4084 2864 cmd.exe 102 PID 2864 wrote to memory of 1684 2864 cmd.exe 103 PID 2864 wrote to memory of 1684 2864 cmd.exe 103 PID 1804 wrote to memory of 1888 1804 svchost.exe 104 PID 1804 wrote to memory of 1888 1804 svchost.exe 104 PID 1888 wrote to memory of 1444 1888 cmd.exe 106 PID 1888 wrote to memory of 1444 1888 cmd.exe 106 PID 1804 wrote to memory of 2620 1804 svchost.exe 112 PID 1804 wrote to memory of 2620 1804 svchost.exe 112 -
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\2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-09_50ab878c0ffda2281e3cd115ea3555e3_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4116 -
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:1804 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:4792 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:1436
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4904
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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:2864 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:4084
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:1684
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1888 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1444
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\READ THIS YOU FAGGOT.txt3⤵PID:2620
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4592
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:704
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:1320
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:3448
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.0MB
MD550ab878c0ffda2281e3cd115ea3555e3
SHA1468d8ba8b2fc48795c168ff82836e2e9fb403b09
SHA2560ff045b16d8495a7958a1101978bff2f434e41982a5cf6b6089ece5fd6e3ba67
SHA512326001ed5f543a3067cb915dea17e6f8331420bb31b2dcec0dfca457d92d14e36a16be62a7a7d94dd5870df99f5b7c9ddc10fbbe8fe37a99298954b779452b9e
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740