Analysis
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max time kernel
147s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
15-04-2024 10:21
Behavioral task
behavioral1
Sample
2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe
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Size
429KB
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MD5
eb9e582bba3727fe7c1ef9fcbb62b0d8
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SHA1
40fc39892de1ae1408a4c3e53cf68aef802344b7
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SHA256
40ff542ecff1ab1682cc5fb3c6cef640d94d89dd13f32837c533966c7f1ca392
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SHA512
356e09c8c8093039bf51f751efd461a3865be8bd1e7529f86274cc0ae9146aae0485a051c0bd9fc6b2e7e887ebd3c0c0c37e6545c90a51ddf76ce06352076121
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SSDEEP
12288:djR89QvWpMLNbzihksiRDEZgKgqViUVDWO6ocY2Fd8:djRAeihV8DopBtf
Malware Config
Extracted
C:\Users\Admin\Documents\read_it.txt
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/4768-0-0x0000000000510000-0x0000000000582000-memory.dmp family_chaos behavioral2/files/0x000f00000001e093-6.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/4768-0-0x0000000000510000-0x0000000000582000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral2/files/0x000f00000001e093-6.dat INDICATOR_SUSPICIOUS_GENRansomware -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 1312 bcdedit.exe 2592 bcdedit.exe -
pid Process 404 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-1-5-21-3198953144-1466794930-246379610-1000\Control Panel\International\Geo\Nation 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-3198953144-1466794930-246379610-1000\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 4752 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\AppData\Roaming\Microsoft\Windows\Recent\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\Searches\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\Saved Games\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\Maintenance\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\Favorites\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\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\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\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\Pictures\Camera Roll\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 F:\$RECYCLE.BIN\S-1-5-21-3198953144-1466794930-246379610-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\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\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\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\AccountPictures\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\Pictures\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\Programs\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3198953144-1466794930-246379610-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\xddbr3qbi.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\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 Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName vds.exe -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 840 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3198953144-1466794930-246379610-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 4676 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4752 svchost.exe -
Suspicious behavior: EnumeratesProcesses 45 IoCs
pid Process 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe 4752 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe Token: SeDebugPrivilege 4752 svchost.exe Token: SeBackupPrivilege 1348 vssvc.exe Token: SeRestorePrivilege 1348 vssvc.exe Token: SeAuditPrivilege 1348 vssvc.exe Token: SeIncreaseQuotaPrivilege 2112 WMIC.exe Token: SeSecurityPrivilege 2112 WMIC.exe Token: SeTakeOwnershipPrivilege 2112 WMIC.exe Token: SeLoadDriverPrivilege 2112 WMIC.exe Token: SeSystemProfilePrivilege 2112 WMIC.exe Token: SeSystemtimePrivilege 2112 WMIC.exe Token: SeProfSingleProcessPrivilege 2112 WMIC.exe Token: SeIncBasePriorityPrivilege 2112 WMIC.exe Token: SeCreatePagefilePrivilege 2112 WMIC.exe Token: SeBackupPrivilege 2112 WMIC.exe Token: SeRestorePrivilege 2112 WMIC.exe Token: SeShutdownPrivilege 2112 WMIC.exe Token: SeDebugPrivilege 2112 WMIC.exe Token: SeSystemEnvironmentPrivilege 2112 WMIC.exe Token: SeRemoteShutdownPrivilege 2112 WMIC.exe Token: SeUndockPrivilege 2112 WMIC.exe Token: SeManageVolumePrivilege 2112 WMIC.exe Token: 33 2112 WMIC.exe Token: 34 2112 WMIC.exe Token: 35 2112 WMIC.exe Token: 36 2112 WMIC.exe Token: SeIncreaseQuotaPrivilege 2112 WMIC.exe Token: SeSecurityPrivilege 2112 WMIC.exe Token: SeTakeOwnershipPrivilege 2112 WMIC.exe Token: SeLoadDriverPrivilege 2112 WMIC.exe Token: SeSystemProfilePrivilege 2112 WMIC.exe Token: SeSystemtimePrivilege 2112 WMIC.exe Token: SeProfSingleProcessPrivilege 2112 WMIC.exe Token: SeIncBasePriorityPrivilege 2112 WMIC.exe Token: SeCreatePagefilePrivilege 2112 WMIC.exe Token: SeBackupPrivilege 2112 WMIC.exe Token: SeRestorePrivilege 2112 WMIC.exe Token: SeShutdownPrivilege 2112 WMIC.exe Token: SeDebugPrivilege 2112 WMIC.exe Token: SeSystemEnvironmentPrivilege 2112 WMIC.exe Token: SeRemoteShutdownPrivilege 2112 WMIC.exe Token: SeUndockPrivilege 2112 WMIC.exe Token: SeManageVolumePrivilege 2112 WMIC.exe Token: 33 2112 WMIC.exe Token: 34 2112 WMIC.exe Token: 35 2112 WMIC.exe Token: 36 2112 WMIC.exe Token: SeBackupPrivilege 4404 wbengine.exe Token: SeRestorePrivilege 4404 wbengine.exe Token: SeSecurityPrivilege 4404 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 4768 wrote to memory of 4752 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 89 PID 4768 wrote to memory of 4752 4768 2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe 89 PID 4752 wrote to memory of 3836 4752 svchost.exe 91 PID 4752 wrote to memory of 3836 4752 svchost.exe 91 PID 3836 wrote to memory of 840 3836 cmd.exe 93 PID 3836 wrote to memory of 840 3836 cmd.exe 93 PID 3836 wrote to memory of 2112 3836 cmd.exe 96 PID 3836 wrote to memory of 2112 3836 cmd.exe 96 PID 4752 wrote to memory of 3104 4752 svchost.exe 98 PID 4752 wrote to memory of 3104 4752 svchost.exe 98 PID 3104 wrote to memory of 1312 3104 cmd.exe 100 PID 3104 wrote to memory of 1312 3104 cmd.exe 100 PID 3104 wrote to memory of 2592 3104 cmd.exe 101 PID 3104 wrote to memory of 2592 3104 cmd.exe 101 PID 4752 wrote to memory of 4024 4752 svchost.exe 102 PID 4752 wrote to memory of 4024 4752 svchost.exe 102 PID 4024 wrote to memory of 404 4024 cmd.exe 104 PID 4024 wrote to memory of 404 4024 cmd.exe 104 PID 4752 wrote to memory of 4676 4752 svchost.exe 108 PID 4752 wrote to memory of 4676 4752 svchost.exe 108 -
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\2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-15_eb9e582bba3727fe7c1ef9fcbb62b0d8_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4768 -
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:4752 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:3836 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:840
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2112
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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:3104 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1312
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2592
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:4024 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:404
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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:4676
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1348
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4404
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:3172
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:2108
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
429KB
MD5eb9e582bba3727fe7c1ef9fcbb62b0d8
SHA140fc39892de1ae1408a4c3e53cf68aef802344b7
SHA25640ff542ecff1ab1682cc5fb3c6cef640d94d89dd13f32837c533966c7f1ca392
SHA512356e09c8c8093039bf51f751efd461a3865be8bd1e7529f86274cc0ae9146aae0485a051c0bd9fc6b2e7e887ebd3c0c0c37e6545c90a51ddf76ce06352076121
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Filesize
1KB
MD5e6d94ee99fe1ec47318d0a5f954ebc1f
SHA15717650f352680db8ca778f6a4ebb62e99a456d5
SHA256c956c6b1d78155651a3776a1e3a6f3492738c36332b0543dcbf461b10d643905
SHA51221f4a7dc2034af20e528365d350230806a6eee6581f7255fb001685eff2955578b4185eb0e10315190c81ae4a0eb07e1f92a61e951164f753993d22e7c62af6b