Analysis
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max time kernel
149s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
08-03-2024 19:50
Behavioral task
behavioral1
Sample
2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe
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Size
23KB
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MD5
e6709542f6749bca05e9e45d18972e28
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SHA1
0ac20e828852b6fd15b80b8f68e12882c6cdc30b
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SHA256
67dbebb3bf13eeb72f7970ccefd1a49c307d9f99de7a26139976724ef16269b3
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SHA512
4082dc9f31a83ccb1a6e56c6eab76dca46c039f3b5e3295c07d7142224dbfecda148076719c274ca576bdfc85e92a87747b30cfb5690527e8d1fb2bdc4700f4a
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SSDEEP
384:a3Mg/bqo2bCbcN6/IpnSuquWLJEr91CMNmb59eZ:gqo2+5IpnDq9Er9/mbTeZ
Malware Config
Extracted
C:\Users\Admin\Documents\README.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/4232-0-0x0000000000490000-0x000000000049C000-memory.dmp family_chaos behavioral2/files/0x000a00000002314a-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/4232-0-0x0000000000490000-0x000000000049C000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral2/files/0x000a00000002314a-6.dat INDICATOR_SUSPICIOUS_GENRansomware -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 4324 bcdedit.exe 2484 bcdedit.exe -
Renames multiple (209) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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pid Process 4008 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 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_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\README.txt svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 4860 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\Searches\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\AppData\Roaming\Microsoft\Windows\AccountPictures\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\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\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\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\Start Menu\Programs\Accessibility\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\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\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\Start Menu\Programs\Maintenance\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\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\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\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\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\AppData\Roaming\Microsoft\Windows\Libraries\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\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\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_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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 vds.exe -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 3136 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 -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 396 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4860 svchost.exe -
Suspicious behavior: EnumeratesProcesses 52 IoCs
pid Process 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe 4860 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe Token: SeDebugPrivilege 4860 svchost.exe Token: SeBackupPrivilege 2176 vssvc.exe Token: SeRestorePrivilege 2176 vssvc.exe Token: SeAuditPrivilege 2176 vssvc.exe Token: SeIncreaseQuotaPrivilege 3036 WMIC.exe Token: SeSecurityPrivilege 3036 WMIC.exe Token: SeTakeOwnershipPrivilege 3036 WMIC.exe Token: SeLoadDriverPrivilege 3036 WMIC.exe Token: SeSystemProfilePrivilege 3036 WMIC.exe Token: SeSystemtimePrivilege 3036 WMIC.exe Token: SeProfSingleProcessPrivilege 3036 WMIC.exe Token: SeIncBasePriorityPrivilege 3036 WMIC.exe Token: SeCreatePagefilePrivilege 3036 WMIC.exe Token: SeBackupPrivilege 3036 WMIC.exe Token: SeRestorePrivilege 3036 WMIC.exe Token: SeShutdownPrivilege 3036 WMIC.exe Token: SeDebugPrivilege 3036 WMIC.exe Token: SeSystemEnvironmentPrivilege 3036 WMIC.exe Token: SeRemoteShutdownPrivilege 3036 WMIC.exe Token: SeUndockPrivilege 3036 WMIC.exe Token: SeManageVolumePrivilege 3036 WMIC.exe Token: 33 3036 WMIC.exe Token: 34 3036 WMIC.exe Token: 35 3036 WMIC.exe Token: 36 3036 WMIC.exe Token: SeIncreaseQuotaPrivilege 3036 WMIC.exe Token: SeSecurityPrivilege 3036 WMIC.exe Token: SeTakeOwnershipPrivilege 3036 WMIC.exe Token: SeLoadDriverPrivilege 3036 WMIC.exe Token: SeSystemProfilePrivilege 3036 WMIC.exe Token: SeSystemtimePrivilege 3036 WMIC.exe Token: SeProfSingleProcessPrivilege 3036 WMIC.exe Token: SeIncBasePriorityPrivilege 3036 WMIC.exe Token: SeCreatePagefilePrivilege 3036 WMIC.exe Token: SeBackupPrivilege 3036 WMIC.exe Token: SeRestorePrivilege 3036 WMIC.exe Token: SeShutdownPrivilege 3036 WMIC.exe Token: SeDebugPrivilege 3036 WMIC.exe Token: SeSystemEnvironmentPrivilege 3036 WMIC.exe Token: SeRemoteShutdownPrivilege 3036 WMIC.exe Token: SeUndockPrivilege 3036 WMIC.exe Token: SeManageVolumePrivilege 3036 WMIC.exe Token: 33 3036 WMIC.exe Token: 34 3036 WMIC.exe Token: 35 3036 WMIC.exe Token: 36 3036 WMIC.exe Token: SeBackupPrivilege 3624 wbengine.exe Token: SeRestorePrivilege 3624 wbengine.exe Token: SeSecurityPrivilege 3624 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 4232 wrote to memory of 4860 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 94 PID 4232 wrote to memory of 4860 4232 2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe 94 PID 4860 wrote to memory of 448 4860 svchost.exe 100 PID 4860 wrote to memory of 448 4860 svchost.exe 100 PID 448 wrote to memory of 3136 448 cmd.exe 102 PID 448 wrote to memory of 3136 448 cmd.exe 102 PID 448 wrote to memory of 3036 448 cmd.exe 105 PID 448 wrote to memory of 3036 448 cmd.exe 105 PID 4860 wrote to memory of 4848 4860 svchost.exe 106 PID 4860 wrote to memory of 4848 4860 svchost.exe 106 PID 4848 wrote to memory of 4324 4848 cmd.exe 108 PID 4848 wrote to memory of 4324 4848 cmd.exe 108 PID 4848 wrote to memory of 2484 4848 cmd.exe 109 PID 4848 wrote to memory of 2484 4848 cmd.exe 109 PID 4860 wrote to memory of 2720 4860 svchost.exe 110 PID 4860 wrote to memory of 2720 4860 svchost.exe 110 PID 2720 wrote to memory of 4008 2720 cmd.exe 112 PID 2720 wrote to memory of 4008 2720 cmd.exe 112 PID 4860 wrote to memory of 396 4860 svchost.exe 116 PID 4860 wrote to memory of 396 4860 svchost.exe 116 -
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\2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-08_e6709542f6749bca05e9e45d18972e28_chaos_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4232 -
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:4860 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:448 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:3136
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3036
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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:4848 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:4324
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2484
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2720 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:4008
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\README.txt3⤵
- Opens file in notepad (likely ransom note)
PID:396
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2176
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3624
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:4188
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:4916
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
23KB
MD5e6709542f6749bca05e9e45d18972e28
SHA10ac20e828852b6fd15b80b8f68e12882c6cdc30b
SHA25667dbebb3bf13eeb72f7970ccefd1a49c307d9f99de7a26139976724ef16269b3
SHA5124082dc9f31a83ccb1a6e56c6eab76dca46c039f3b5e3295c07d7142224dbfecda148076719c274ca576bdfc85e92a87747b30cfb5690527e8d1fb2bdc4700f4a
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740