Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
18-11-2024 05:37
Behavioral task
behavioral1
Sample
2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe
Resource
win10v2004-20241007-en
General
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Target
2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe
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Size
295KB
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MD5
765079967592ca7293da5e2b792d3442
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SHA1
0ca816f83480e9ab4bac02c7af501c7058ddad88
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SHA256
d65bb45d038c257ccd7cf42aa6179e0b2095e14209101ee2dcaee4f69586a54a
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SHA512
e2651e113244e73eb84e8606d64803ff464cad9ac921d777f8cebc00d626e170d37f28a1febf55882c6859d893aed99de9e01629fe965b2276cfef07e9f4ade6
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SSDEEP
6144:8Sr9ScdUdRZek/jzIhnqjE/xgrSzgDQxGsokL:ndUd/V4hnmE/CSIQM6
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
resource yara_rule behavioral2/memory/1816-1-0x0000000000380000-0x00000000003D0000-memory.dmp family_chaos behavioral2/files/0x0002000000022a9d-6.dat family_chaos -
Chaos family
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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 1932 bcdedit.exe 644 bcdedit.exe -
pid Process 652 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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\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 2952 svchost.exe -
Reads user/profile data of web browsers 3 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\Start Menu\Programs\Administrative Tools\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-1-5-21-2045521122-590294423-3465680274-1000\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\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\Recent\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\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\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\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\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe 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\OneDrive\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\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\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\Admin\AppData\Roaming\Microsoft\Windows\SendTo\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\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\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ky1jtgi99.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\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.
pid Process 3552 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2940 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2952 svchost.exe -
Suspicious behavior: EnumeratesProcesses 49 IoCs
pid Process 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe 2952 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe Token: SeDebugPrivilege 2952 svchost.exe Token: SeBackupPrivilege 2004 vssvc.exe Token: SeRestorePrivilege 2004 vssvc.exe Token: SeAuditPrivilege 2004 vssvc.exe Token: SeIncreaseQuotaPrivilege 1408 WMIC.exe Token: SeSecurityPrivilege 1408 WMIC.exe Token: SeTakeOwnershipPrivilege 1408 WMIC.exe Token: SeLoadDriverPrivilege 1408 WMIC.exe Token: SeSystemProfilePrivilege 1408 WMIC.exe Token: SeSystemtimePrivilege 1408 WMIC.exe Token: SeProfSingleProcessPrivilege 1408 WMIC.exe Token: SeIncBasePriorityPrivilege 1408 WMIC.exe Token: SeCreatePagefilePrivilege 1408 WMIC.exe Token: SeBackupPrivilege 1408 WMIC.exe Token: SeRestorePrivilege 1408 WMIC.exe Token: SeShutdownPrivilege 1408 WMIC.exe Token: SeDebugPrivilege 1408 WMIC.exe Token: SeSystemEnvironmentPrivilege 1408 WMIC.exe Token: SeRemoteShutdownPrivilege 1408 WMIC.exe Token: SeUndockPrivilege 1408 WMIC.exe Token: SeManageVolumePrivilege 1408 WMIC.exe Token: 33 1408 WMIC.exe Token: 34 1408 WMIC.exe Token: 35 1408 WMIC.exe Token: 36 1408 WMIC.exe Token: SeIncreaseQuotaPrivilege 1408 WMIC.exe Token: SeSecurityPrivilege 1408 WMIC.exe Token: SeTakeOwnershipPrivilege 1408 WMIC.exe Token: SeLoadDriverPrivilege 1408 WMIC.exe Token: SeSystemProfilePrivilege 1408 WMIC.exe Token: SeSystemtimePrivilege 1408 WMIC.exe Token: SeProfSingleProcessPrivilege 1408 WMIC.exe Token: SeIncBasePriorityPrivilege 1408 WMIC.exe Token: SeCreatePagefilePrivilege 1408 WMIC.exe Token: SeBackupPrivilege 1408 WMIC.exe Token: SeRestorePrivilege 1408 WMIC.exe Token: SeShutdownPrivilege 1408 WMIC.exe Token: SeDebugPrivilege 1408 WMIC.exe Token: SeSystemEnvironmentPrivilege 1408 WMIC.exe Token: SeRemoteShutdownPrivilege 1408 WMIC.exe Token: SeUndockPrivilege 1408 WMIC.exe Token: SeManageVolumePrivilege 1408 WMIC.exe Token: 33 1408 WMIC.exe Token: 34 1408 WMIC.exe Token: 35 1408 WMIC.exe Token: 36 1408 WMIC.exe Token: SeBackupPrivilege 2340 wbengine.exe Token: SeRestorePrivilege 2340 wbengine.exe Token: SeSecurityPrivilege 2340 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 1816 wrote to memory of 2952 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 90 PID 1816 wrote to memory of 2952 1816 2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe 90 PID 2952 wrote to memory of 1596 2952 svchost.exe 93 PID 2952 wrote to memory of 1596 2952 svchost.exe 93 PID 1596 wrote to memory of 3552 1596 cmd.exe 95 PID 1596 wrote to memory of 3552 1596 cmd.exe 95 PID 1596 wrote to memory of 1408 1596 cmd.exe 99 PID 1596 wrote to memory of 1408 1596 cmd.exe 99 PID 2952 wrote to memory of 3528 2952 svchost.exe 100 PID 2952 wrote to memory of 3528 2952 svchost.exe 100 PID 3528 wrote to memory of 1932 3528 cmd.exe 102 PID 3528 wrote to memory of 1932 3528 cmd.exe 102 PID 3528 wrote to memory of 644 3528 cmd.exe 103 PID 3528 wrote to memory of 644 3528 cmd.exe 103 PID 2952 wrote to memory of 1660 2952 svchost.exe 104 PID 2952 wrote to memory of 1660 2952 svchost.exe 104 PID 1660 wrote to memory of 652 1660 cmd.exe 109 PID 1660 wrote to memory of 652 1660 cmd.exe 109 PID 2952 wrote to memory of 2940 2952 svchost.exe 115 PID 2952 wrote to memory of 2940 2952 svchost.exe 115 -
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\2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-18_765079967592ca7293da5e2b792d3442_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1816 -
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:2952 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:1596 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:3552
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1408
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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:3528 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1932
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:644
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1660 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:652
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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:2940
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2004
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2340
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:4428
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:2828
Network
MITRE ATT&CK Enterprise v15
Defense Evasion
Direct Volume Access
1Indicator Removal
3File Deletion
3Modify Registry
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
295KB
MD5765079967592ca7293da5e2b792d3442
SHA10ca816f83480e9ab4bac02c7af501c7058ddad88
SHA256d65bb45d038c257ccd7cf42aa6179e0b2095e14209101ee2dcaee4f69586a54a
SHA512e2651e113244e73eb84e8606d64803ff464cad9ac921d777f8cebc00d626e170d37f28a1febf55882c6859d893aed99de9e01629fe965b2276cfef07e9f4ade6
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740