Analysis
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max time kernel
67s -
max time network
53s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
28-04-2024 21:23
Behavioral task
behavioral1
Sample
2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe
Resource
win10v2004-20240419-en
General
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Target
2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe
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Size
166KB
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MD5
333afd6c1ce5888600f832dd3d2b07f6
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SHA1
84cb62be929e0a1cbaafd000c9acc5a1dc333ee2
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SHA256
e1ec2d19bbbc926bce8915a1d7f94cbb143f2466ac13516d02bcd9ff2ccd4354
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SHA512
f6a53fdea4019440c2d416039230111b85645e820ef1545fc7e6e8e3156fffc62fb0e336068b30278452013f9af05e0b0c409ba7dfd850b4ed39db2b3434f790
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SSDEEP
3072:eoH9zr9A2p8PoEXP+1ariGuqi8RWoZ28h8K9f0eBDQsvSnOI0Fwgj:Jr918PUiuqiePE86K98gH8OI0W
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
Processes:
resource yara_rule behavioral2/memory/4040-0-0x00000000007C0000-0x00000000007F0000-memory.dmp family_chaos C:\Users\Admin\AppData\Roaming\svchost.exe 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
Processes:
resource yara_rule behavioral2/memory/4040-0-0x00000000007C0000-0x00000000007F0000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware C:\Users\Admin\AppData\Roaming\svchost.exe INDICATOR_SUSPICIOUS_GENRansomware -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
Processes:
bcdedit.exebcdedit.exepid process 2756 bcdedit.exe 4028 bcdedit.exe -
Processes:
wbadmin.exepid process 1364 wbadmin.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exesvchost.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\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 5032 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\Pictures\Camera Roll\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\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\Desktop\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\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\SendTo\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-1-5-21-17203666-93769886-2545153620-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\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\Favorites\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\AccountPictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\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\Start Menu\Programs\Accessories\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\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\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\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\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\Start Menu\Programs\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
svchost.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\vlvjaxluf.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 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 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid process 4468 vssadmin.exe -
Modifies registry class 1 IoCs
Processes:
svchost.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
Processes:
NOTEPAD.EXEpid process 3112 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
svchost.exepid process 5032 svchost.exe -
Suspicious behavior: EnumeratesProcesses 47 IoCs
Processes:
2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exesvchost.exepid process 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe 5032 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
Processes:
2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exesvchost.exevssvc.exeWMIC.exewbengine.exedescription pid process Token: SeDebugPrivilege 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe Token: SeDebugPrivilege 5032 svchost.exe Token: SeBackupPrivilege 1032 vssvc.exe Token: SeRestorePrivilege 1032 vssvc.exe Token: SeAuditPrivilege 1032 vssvc.exe Token: SeIncreaseQuotaPrivilege 2352 WMIC.exe Token: SeSecurityPrivilege 2352 WMIC.exe Token: SeTakeOwnershipPrivilege 2352 WMIC.exe Token: SeLoadDriverPrivilege 2352 WMIC.exe Token: SeSystemProfilePrivilege 2352 WMIC.exe Token: SeSystemtimePrivilege 2352 WMIC.exe Token: SeProfSingleProcessPrivilege 2352 WMIC.exe Token: SeIncBasePriorityPrivilege 2352 WMIC.exe Token: SeCreatePagefilePrivilege 2352 WMIC.exe Token: SeBackupPrivilege 2352 WMIC.exe Token: SeRestorePrivilege 2352 WMIC.exe Token: SeShutdownPrivilege 2352 WMIC.exe Token: SeDebugPrivilege 2352 WMIC.exe Token: SeSystemEnvironmentPrivilege 2352 WMIC.exe Token: SeRemoteShutdownPrivilege 2352 WMIC.exe Token: SeUndockPrivilege 2352 WMIC.exe Token: SeManageVolumePrivilege 2352 WMIC.exe Token: 33 2352 WMIC.exe Token: 34 2352 WMIC.exe Token: 35 2352 WMIC.exe Token: 36 2352 WMIC.exe Token: SeIncreaseQuotaPrivilege 2352 WMIC.exe Token: SeSecurityPrivilege 2352 WMIC.exe Token: SeTakeOwnershipPrivilege 2352 WMIC.exe Token: SeLoadDriverPrivilege 2352 WMIC.exe Token: SeSystemProfilePrivilege 2352 WMIC.exe Token: SeSystemtimePrivilege 2352 WMIC.exe Token: SeProfSingleProcessPrivilege 2352 WMIC.exe Token: SeIncBasePriorityPrivilege 2352 WMIC.exe Token: SeCreatePagefilePrivilege 2352 WMIC.exe Token: SeBackupPrivilege 2352 WMIC.exe Token: SeRestorePrivilege 2352 WMIC.exe Token: SeShutdownPrivilege 2352 WMIC.exe Token: SeDebugPrivilege 2352 WMIC.exe Token: SeSystemEnvironmentPrivilege 2352 WMIC.exe Token: SeRemoteShutdownPrivilege 2352 WMIC.exe Token: SeUndockPrivilege 2352 WMIC.exe Token: SeManageVolumePrivilege 2352 WMIC.exe Token: 33 2352 WMIC.exe Token: 34 2352 WMIC.exe Token: 35 2352 WMIC.exe Token: 36 2352 WMIC.exe Token: SeBackupPrivilege 3224 wbengine.exe Token: SeRestorePrivilege 3224 wbengine.exe Token: SeSecurityPrivilege 3224 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exesvchost.execmd.execmd.execmd.exedescription pid process target process PID 4040 wrote to memory of 5032 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe svchost.exe PID 4040 wrote to memory of 5032 4040 2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe svchost.exe PID 5032 wrote to memory of 2492 5032 svchost.exe cmd.exe PID 5032 wrote to memory of 2492 5032 svchost.exe cmd.exe PID 2492 wrote to memory of 4468 2492 cmd.exe vssadmin.exe PID 2492 wrote to memory of 4468 2492 cmd.exe vssadmin.exe PID 2492 wrote to memory of 2352 2492 cmd.exe WMIC.exe PID 2492 wrote to memory of 2352 2492 cmd.exe WMIC.exe PID 5032 wrote to memory of 2248 5032 svchost.exe cmd.exe PID 5032 wrote to memory of 2248 5032 svchost.exe cmd.exe PID 2248 wrote to memory of 2756 2248 cmd.exe bcdedit.exe PID 2248 wrote to memory of 2756 2248 cmd.exe bcdedit.exe PID 2248 wrote to memory of 4028 2248 cmd.exe bcdedit.exe PID 2248 wrote to memory of 4028 2248 cmd.exe bcdedit.exe PID 5032 wrote to memory of 4868 5032 svchost.exe cmd.exe PID 5032 wrote to memory of 4868 5032 svchost.exe cmd.exe PID 4868 wrote to memory of 1364 4868 cmd.exe wbadmin.exe PID 4868 wrote to memory of 1364 4868 cmd.exe wbadmin.exe PID 5032 wrote to memory of 3112 5032 svchost.exe NOTEPAD.EXE PID 5032 wrote to memory of 3112 5032 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\2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-28_333afd6c1ce5888600f832dd3d2b07f6_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
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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
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
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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)
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\svchost.exeFilesize
166KB
MD5333afd6c1ce5888600f832dd3d2b07f6
SHA184cb62be929e0a1cbaafd000c9acc5a1dc333ee2
SHA256e1ec2d19bbbc926bce8915a1d7f94cbb143f2466ac13516d02bcd9ff2ccd4354
SHA512f6a53fdea4019440c2d416039230111b85645e820ef1545fc7e6e8e3156fffc62fb0e336068b30278452013f9af05e0b0c409ba7dfd850b4ed39db2b3434f790
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C:\Users\Admin\Documents\read_it.txtFilesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740
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memory/4040-0-0x00000000007C0000-0x00000000007F0000-memory.dmpFilesize
192KB
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memory/4040-1-0x00007FF93B9E0000-0x00007FF93C4A1000-memory.dmpFilesize
10.8MB
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memory/4040-15-0x00007FF93B9E0000-0x00007FF93C4A1000-memory.dmpFilesize
10.8MB
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memory/5032-14-0x00007FF93B9E0000-0x00007FF93C4A1000-memory.dmpFilesize
10.8MB
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memory/5032-456-0x00007FF93B9E0000-0x00007FF93C4A1000-memory.dmpFilesize
10.8MB