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Analysis
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max time kernel
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max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20250129-en -
resource tags
arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system -
submitted
02/02/2025, 04:22
Behavioral task
behavioral1
Sample
2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe
Resource
win10v2004-20250129-en
General
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Target
2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe
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Size
195KB
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MD5
3a6dcb521541f45851833615856452e1
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SHA1
43e7ae516237531c22cd69b7ca37a0ff39e9488e
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SHA256
f6dfe2824f24d1daad9d072df9e74f667510f1c22f98b887357010d0fded3a6c
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SHA512
e6a43be34cb421843b9ac31b2b5f21d2d2f96e16810de93dd0fa189a7bb4333bae5ffb94e5929b2a409b51147a4c2d9511814fd2af8186c88ce5a77eff700430
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SSDEEP
3072:woRNeWr98RskBc93hxfkB+7kjCGX8q1qz2/HuHZZ57/Euv8RnNaO:rnr98RI8sAwxWHaEi
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/1412-1-0x0000000000B40000-0x0000000000B78000-memory.dmp family_chaos behavioral2/files/0x000f000000023b21-7.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 2316 bcdedit.exe 2688 bcdedit.exe -
pid Process 3204 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-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\International\Geo\Nation 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-2089655958-977706906-1981639424-1000\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 4660 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\Public\Videos\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\Accessibility\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\Admin\Searches\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\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\Recent\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2089655958-977706906-1981639424-1000\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\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\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\Favorites\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\SendTo\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\Contacts\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\Public\Pictures\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\Favorites\Links\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\jseemas94.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 4932 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2089655958-977706906-1981639424-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2264 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4660 svchost.exe -
Suspicious behavior: EnumeratesProcesses 45 IoCs
pid Process 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe 4660 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe Token: SeDebugPrivilege 4660 svchost.exe Token: SeBackupPrivilege 1528 vssvc.exe Token: SeRestorePrivilege 1528 vssvc.exe Token: SeAuditPrivilege 1528 vssvc.exe Token: SeIncreaseQuotaPrivilege 4944 WMIC.exe Token: SeSecurityPrivilege 4944 WMIC.exe Token: SeTakeOwnershipPrivilege 4944 WMIC.exe Token: SeLoadDriverPrivilege 4944 WMIC.exe Token: SeSystemProfilePrivilege 4944 WMIC.exe Token: SeSystemtimePrivilege 4944 WMIC.exe Token: SeProfSingleProcessPrivilege 4944 WMIC.exe Token: SeIncBasePriorityPrivilege 4944 WMIC.exe Token: SeCreatePagefilePrivilege 4944 WMIC.exe Token: SeBackupPrivilege 4944 WMIC.exe Token: SeRestorePrivilege 4944 WMIC.exe Token: SeShutdownPrivilege 4944 WMIC.exe Token: SeDebugPrivilege 4944 WMIC.exe Token: SeSystemEnvironmentPrivilege 4944 WMIC.exe Token: SeRemoteShutdownPrivilege 4944 WMIC.exe Token: SeUndockPrivilege 4944 WMIC.exe Token: SeManageVolumePrivilege 4944 WMIC.exe Token: 33 4944 WMIC.exe Token: 34 4944 WMIC.exe Token: 35 4944 WMIC.exe Token: 36 4944 WMIC.exe Token: SeIncreaseQuotaPrivilege 4944 WMIC.exe Token: SeSecurityPrivilege 4944 WMIC.exe Token: SeTakeOwnershipPrivilege 4944 WMIC.exe Token: SeLoadDriverPrivilege 4944 WMIC.exe Token: SeSystemProfilePrivilege 4944 WMIC.exe Token: SeSystemtimePrivilege 4944 WMIC.exe Token: SeProfSingleProcessPrivilege 4944 WMIC.exe Token: SeIncBasePriorityPrivilege 4944 WMIC.exe Token: SeCreatePagefilePrivilege 4944 WMIC.exe Token: SeBackupPrivilege 4944 WMIC.exe Token: SeRestorePrivilege 4944 WMIC.exe Token: SeShutdownPrivilege 4944 WMIC.exe Token: SeDebugPrivilege 4944 WMIC.exe Token: SeSystemEnvironmentPrivilege 4944 WMIC.exe Token: SeRemoteShutdownPrivilege 4944 WMIC.exe Token: SeUndockPrivilege 4944 WMIC.exe Token: SeManageVolumePrivilege 4944 WMIC.exe Token: 33 4944 WMIC.exe Token: 34 4944 WMIC.exe Token: 35 4944 WMIC.exe Token: 36 4944 WMIC.exe Token: SeBackupPrivilege 4652 wbengine.exe Token: SeRestorePrivilege 4652 wbengine.exe Token: SeSecurityPrivilege 4652 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 1412 wrote to memory of 4660 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 86 PID 1412 wrote to memory of 4660 1412 2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe 86 PID 4660 wrote to memory of 2068 4660 svchost.exe 88 PID 4660 wrote to memory of 2068 4660 svchost.exe 88 PID 2068 wrote to memory of 4932 2068 cmd.exe 90 PID 2068 wrote to memory of 4932 2068 cmd.exe 90 PID 2068 wrote to memory of 4944 2068 cmd.exe 93 PID 2068 wrote to memory of 4944 2068 cmd.exe 93 PID 4660 wrote to memory of 2644 4660 svchost.exe 95 PID 4660 wrote to memory of 2644 4660 svchost.exe 95 PID 2644 wrote to memory of 2316 2644 cmd.exe 97 PID 2644 wrote to memory of 2316 2644 cmd.exe 97 PID 2644 wrote to memory of 2688 2644 cmd.exe 98 PID 2644 wrote to memory of 2688 2644 cmd.exe 98 PID 4660 wrote to memory of 4216 4660 svchost.exe 99 PID 4660 wrote to memory of 4216 4660 svchost.exe 99 PID 4216 wrote to memory of 3204 4216 cmd.exe 101 PID 4216 wrote to memory of 3204 4216 cmd.exe 101 PID 4660 wrote to memory of 2264 4660 svchost.exe 105 PID 4660 wrote to memory of 2264 4660 svchost.exe 105 -
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\2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2025-02-02_3a6dcb521541f45851833615856452e1_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1412 -
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:4660 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2068 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:4932
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4944
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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:2644 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2316
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2688
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:4216 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:3204
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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:2264
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1528
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4652
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:4180
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:3996
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
195KB
MD53a6dcb521541f45851833615856452e1
SHA143e7ae516237531c22cd69b7ca37a0ff39e9488e
SHA256f6dfe2824f24d1daad9d072df9e74f667510f1c22f98b887357010d0fded3a6c
SHA512e6a43be34cb421843b9ac31b2b5f21d2d2f96e16810de93dd0fa189a7bb4333bae5ffb94e5929b2a409b51147a4c2d9511814fd2af8186c88ce5a77eff700430
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Filesize
913B
MD5ed0389d2c63d4de9b414924025c4b669
SHA12572880a7ce991d4a360f5f9f3c91c8efcd6af61
SHA25658d7086d971c5d952696e412f07e0a5131af143f2e996b6cb9adf4ef1aeb80ae
SHA5120b6392ed883ce5d3d995ccd48430d4c494ac847a86c4f20f7e2e47c9708170690cdc0d5d569f5c7c8d90baf6ea1f0295a83eeb802e5f03442d716f41c9965a95