Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
24-07-2024 16:28
Behavioral task
behavioral1
Sample
2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe
Resource
win10v2004-20240709-en
General
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Target
2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe
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Size
23KB
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MD5
d0623d05670a516d9e4d14e4c47d587a
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SHA1
291b5a06b137578751f4fb9b1c32c3901f595f35
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SHA256
5bc787693b40e9d46e498cc40a0e42e9fd0f9c5cd208a614ce3821d4eefb660d
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SHA512
b1468adcdb567756cdbbc621a59627153513182a1426a1f2c9ec7dc632e0daaf0e92ef25ded454830238f8350a54f8f1644f2f20c61df16e8754aa1af8395195
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SSDEEP
384:q3Mg/bqo2mcxtivp1AN4+X0Z/rJsr91CkPxb5LeP:Qqo2ptMp1g4+kRdsr9TPxbpeP
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/208-1-0x0000000000430000-0x000000000043C000-memory.dmp family_chaos behavioral2/files/0x00030000000229a0-6.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 1656 bcdedit.exe 3016 bcdedit.exe -
pid Process 1308 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-1-5-21-2636447293-1148739154-93880854-1000\Control Panel\International\Geo\Nation 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-2636447293-1148739154-93880854-1000\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 4644 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 F:\$RECYCLE.BIN\S-1-5-21-2636447293-1148739154-93880854-1000\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\SendTo\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\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\Favorites\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\Recent\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\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\Searches\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\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\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\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\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\AccountPictures\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 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\Documents\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\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\Start Menu\Programs\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\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 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 vds.exe -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 4324 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2636447293-1148739154-93880854-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2708 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4644 svchost.exe -
Suspicious behavior: EnumeratesProcesses 51 IoCs
pid Process 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe 4644 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe Token: SeDebugPrivilege 4644 svchost.exe Token: SeBackupPrivilege 4372 vssvc.exe Token: SeRestorePrivilege 4372 vssvc.exe Token: SeAuditPrivilege 4372 vssvc.exe Token: SeIncreaseQuotaPrivilege 3992 WMIC.exe Token: SeSecurityPrivilege 3992 WMIC.exe Token: SeTakeOwnershipPrivilege 3992 WMIC.exe Token: SeLoadDriverPrivilege 3992 WMIC.exe Token: SeSystemProfilePrivilege 3992 WMIC.exe Token: SeSystemtimePrivilege 3992 WMIC.exe Token: SeProfSingleProcessPrivilege 3992 WMIC.exe Token: SeIncBasePriorityPrivilege 3992 WMIC.exe Token: SeCreatePagefilePrivilege 3992 WMIC.exe Token: SeBackupPrivilege 3992 WMIC.exe Token: SeRestorePrivilege 3992 WMIC.exe Token: SeShutdownPrivilege 3992 WMIC.exe Token: SeDebugPrivilege 3992 WMIC.exe Token: SeSystemEnvironmentPrivilege 3992 WMIC.exe Token: SeRemoteShutdownPrivilege 3992 WMIC.exe Token: SeUndockPrivilege 3992 WMIC.exe Token: SeManageVolumePrivilege 3992 WMIC.exe Token: 33 3992 WMIC.exe Token: 34 3992 WMIC.exe Token: 35 3992 WMIC.exe Token: 36 3992 WMIC.exe Token: SeIncreaseQuotaPrivilege 3992 WMIC.exe Token: SeSecurityPrivilege 3992 WMIC.exe Token: SeTakeOwnershipPrivilege 3992 WMIC.exe Token: SeLoadDriverPrivilege 3992 WMIC.exe Token: SeSystemProfilePrivilege 3992 WMIC.exe Token: SeSystemtimePrivilege 3992 WMIC.exe Token: SeProfSingleProcessPrivilege 3992 WMIC.exe Token: SeIncBasePriorityPrivilege 3992 WMIC.exe Token: SeCreatePagefilePrivilege 3992 WMIC.exe Token: SeBackupPrivilege 3992 WMIC.exe Token: SeRestorePrivilege 3992 WMIC.exe Token: SeShutdownPrivilege 3992 WMIC.exe Token: SeDebugPrivilege 3992 WMIC.exe Token: SeSystemEnvironmentPrivilege 3992 WMIC.exe Token: SeRemoteShutdownPrivilege 3992 WMIC.exe Token: SeUndockPrivilege 3992 WMIC.exe Token: SeManageVolumePrivilege 3992 WMIC.exe Token: 33 3992 WMIC.exe Token: 34 3992 WMIC.exe Token: 35 3992 WMIC.exe Token: 36 3992 WMIC.exe Token: SeBackupPrivilege 2444 wbengine.exe Token: SeRestorePrivilege 2444 wbengine.exe Token: SeSecurityPrivilege 2444 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 208 wrote to memory of 4644 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 91 PID 208 wrote to memory of 4644 208 2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe 91 PID 4644 wrote to memory of 4272 4644 svchost.exe 94 PID 4644 wrote to memory of 4272 4644 svchost.exe 94 PID 4272 wrote to memory of 4324 4272 cmd.exe 96 PID 4272 wrote to memory of 4324 4272 cmd.exe 96 PID 4272 wrote to memory of 3992 4272 cmd.exe 99 PID 4272 wrote to memory of 3992 4272 cmd.exe 99 PID 4644 wrote to memory of 3932 4644 svchost.exe 101 PID 4644 wrote to memory of 3932 4644 svchost.exe 101 PID 3932 wrote to memory of 1656 3932 cmd.exe 104 PID 3932 wrote to memory of 1656 3932 cmd.exe 104 PID 3932 wrote to memory of 3016 3932 cmd.exe 105 PID 3932 wrote to memory of 3016 3932 cmd.exe 105 PID 4644 wrote to memory of 4688 4644 svchost.exe 106 PID 4644 wrote to memory of 4688 4644 svchost.exe 106 PID 4688 wrote to memory of 1308 4688 cmd.exe 108 PID 4688 wrote to memory of 1308 4688 cmd.exe 108 PID 4644 wrote to memory of 2708 4644 svchost.exe 112 PID 4644 wrote to memory of 2708 4644 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\2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-07-24_d0623d05670a516d9e4d14e4c47d587a_chaos_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:208 -
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:4644 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:4272 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:4324
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3992
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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:3932 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1656
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:3016
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:4688 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1308
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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:2708
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4372
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2444
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2116
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:1524
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
23KB
MD5d0623d05670a516d9e4d14e4c47d587a
SHA1291b5a06b137578751f4fb9b1c32c3901f595f35
SHA2565bc787693b40e9d46e498cc40a0e42e9fd0f9c5cd208a614ce3821d4eefb660d
SHA512b1468adcdb567756cdbbc621a59627153513182a1426a1f2c9ec7dc632e0daaf0e92ef25ded454830238f8350a54f8f1644f2f20c61df16e8754aa1af8395195
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740