Analysis
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max time kernel
93s -
max time network
94s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
18-09-2024 02:42
Behavioral task
behavioral1
Sample
2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe
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Size
6.9MB
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MD5
4bedf848cbe4b5b7b1af3cd7c4d5db7c
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SHA1
868c500f51222967634dcb705e7ba42d6657abfa
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SHA256
c6d52bd7c0aaadc67bcf433212a04ec2c470a592fbd11fa58af4a5118cddbac8
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SHA512
e3b0d999be6207035797faf168bf6d4f92a3468cb4592fecb73c2570ad9bdaa1146a4126a4a10ca3ab3fd6346f9fbeb9f5def635748259ec21cd668720fd43ee
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SSDEEP
49152:XC/xZL1qpiEHgA+R9ZafOKD+8PhBwYHd/bXx0P8oYK4dxQ27:
Malware Config
Extracted
C:\Users\Admin\Desktop\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
Processes:
resource yara_rule behavioral2/memory/2800-1-0x0000000000D40000-0x0000000001424000-memory.dmp family_chaos C:\Users\Admin\AppData\Roaming\svchost.exe family_chaos -
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Processes:
wbadmin.exepid process 4896 wbadmin.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exesvchost.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation svchost.exe -
Drops startup file 3 IoCs
Processes:
svchost.exedescription 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
Processes:
svchost.exepid process 2444 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
Processes:
svchost.exedescription ioc process File opened for modification C:\Users\Admin\Documents\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\Videos\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\System Tools\Desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-1302416131-1437503476-2806442725-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\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\OneDrive\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\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\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\Public\Desktop\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\Admin\Favorites\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 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\Accessibility\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\Public\Music\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\Accessories\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\Admin\Desktop\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 -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
svchost.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8ogs7dxj1.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.
Processes:
vds.exedescription 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.
Processes:
vssadmin.exepid process 2968 vssadmin.exe -
Modifies registry class 1 IoCs
Processes:
svchost.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
Processes:
NOTEPAD.EXEpid process 3844 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
svchost.exepid process 2444 svchost.exe -
Suspicious behavior: EnumeratesProcesses 45 IoCs
Processes:
2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exesvchost.exepid process 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe 2444 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
Processes:
2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exesvchost.exevssvc.exeWMIC.exewbengine.exedescription pid process Token: SeDebugPrivilege 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe Token: SeDebugPrivilege 2444 svchost.exe Token: SeBackupPrivilege 4392 vssvc.exe Token: SeRestorePrivilege 4392 vssvc.exe Token: SeAuditPrivilege 4392 vssvc.exe Token: SeIncreaseQuotaPrivilege 3884 WMIC.exe Token: SeSecurityPrivilege 3884 WMIC.exe Token: SeTakeOwnershipPrivilege 3884 WMIC.exe Token: SeLoadDriverPrivilege 3884 WMIC.exe Token: SeSystemProfilePrivilege 3884 WMIC.exe Token: SeSystemtimePrivilege 3884 WMIC.exe Token: SeProfSingleProcessPrivilege 3884 WMIC.exe Token: SeIncBasePriorityPrivilege 3884 WMIC.exe Token: SeCreatePagefilePrivilege 3884 WMIC.exe Token: SeBackupPrivilege 3884 WMIC.exe Token: SeRestorePrivilege 3884 WMIC.exe Token: SeShutdownPrivilege 3884 WMIC.exe Token: SeDebugPrivilege 3884 WMIC.exe Token: SeSystemEnvironmentPrivilege 3884 WMIC.exe Token: SeRemoteShutdownPrivilege 3884 WMIC.exe Token: SeUndockPrivilege 3884 WMIC.exe Token: SeManageVolumePrivilege 3884 WMIC.exe Token: 33 3884 WMIC.exe Token: 34 3884 WMIC.exe Token: 35 3884 WMIC.exe Token: 36 3884 WMIC.exe Token: SeIncreaseQuotaPrivilege 3884 WMIC.exe Token: SeSecurityPrivilege 3884 WMIC.exe Token: SeTakeOwnershipPrivilege 3884 WMIC.exe Token: SeLoadDriverPrivilege 3884 WMIC.exe Token: SeSystemProfilePrivilege 3884 WMIC.exe Token: SeSystemtimePrivilege 3884 WMIC.exe Token: SeProfSingleProcessPrivilege 3884 WMIC.exe Token: SeIncBasePriorityPrivilege 3884 WMIC.exe Token: SeCreatePagefilePrivilege 3884 WMIC.exe Token: SeBackupPrivilege 3884 WMIC.exe Token: SeRestorePrivilege 3884 WMIC.exe Token: SeShutdownPrivilege 3884 WMIC.exe Token: SeDebugPrivilege 3884 WMIC.exe Token: SeSystemEnvironmentPrivilege 3884 WMIC.exe Token: SeRemoteShutdownPrivilege 3884 WMIC.exe Token: SeUndockPrivilege 3884 WMIC.exe Token: SeManageVolumePrivilege 3884 WMIC.exe Token: 33 3884 WMIC.exe Token: 34 3884 WMIC.exe Token: 35 3884 WMIC.exe Token: 36 3884 WMIC.exe Token: SeBackupPrivilege 3216 wbengine.exe Token: SeRestorePrivilege 3216 wbengine.exe Token: SeSecurityPrivilege 3216 wbengine.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exesvchost.execmd.execmd.exedescription pid process target process PID 2800 wrote to memory of 2444 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe svchost.exe PID 2800 wrote to memory of 2444 2800 2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe svchost.exe PID 2444 wrote to memory of 244 2444 svchost.exe cmd.exe PID 2444 wrote to memory of 244 2444 svchost.exe cmd.exe PID 244 wrote to memory of 2968 244 cmd.exe vssadmin.exe PID 244 wrote to memory of 2968 244 cmd.exe vssadmin.exe PID 244 wrote to memory of 3884 244 cmd.exe WMIC.exe PID 244 wrote to memory of 3884 244 cmd.exe WMIC.exe PID 2444 wrote to memory of 5016 2444 svchost.exe cmd.exe PID 2444 wrote to memory of 5016 2444 svchost.exe cmd.exe PID 5016 wrote to memory of 4896 5016 cmd.exe wbadmin.exe PID 5016 wrote to memory of 4896 5016 cmd.exe wbadmin.exe PID 2444 wrote to memory of 3844 2444 svchost.exe NOTEPAD.EXE PID 2444 wrote to memory of 3844 2444 svchost.exe NOTEPAD.EXE -
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\2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-18_4bedf848cbe4b5b7b1af3cd7c4d5db7c_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2800 -
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:2444 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:244 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2968 -
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3884 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:5016 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:4896 -
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:3844
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4392
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3216
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:4764
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:4188
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
6.9MB
MD54bedf848cbe4b5b7b1af3cd7c4d5db7c
SHA1868c500f51222967634dcb705e7ba42d6657abfa
SHA256c6d52bd7c0aaadc67bcf433212a04ec2c470a592fbd11fa58af4a5118cddbac8
SHA512e3b0d999be6207035797faf168bf6d4f92a3468cb4592fecb73c2570ad9bdaa1146a4126a4a10ca3ab3fd6346f9fbeb9f5def635748259ec21cd668720fd43ee
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740