Analysis
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max time kernel
140s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
16-10-2024 12:33
Behavioral task
behavioral1
Sample
2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe
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Size
23KB
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MD5
7c556a045999ea1ca4f00d5b9b886b4c
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SHA1
e99a8deb643a2fb835a51664d384c1d9677e7698
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SHA256
8cafe2829a80bcc87175685e04d9297c8403453d274a2be2c90d764f0c88991d
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SHA512
b9e142a7a7524febf3f919b28f3b150a0fcff1b5f5948accbe84ceb89a3cbccd130057b4806d0c2b38cdee5803fb189e2200ff29cc9f9954132787c8a1c0b8dd
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SSDEEP
384:53Mg/bqo2DnQyvyHpfitobnJOr91CZIBA0eb:rqo2zlvKppJOr9iIBneb
Malware Config
Extracted
C:\Users\Admin\Documents\read_it.txt
https://tox.chat/download.html
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/4660-1-0x0000000000770000-0x000000000077C000-memory.dmp family_chaos behavioral2/files/0x0009000000023c56-6.dat family_chaos -
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 1172 bcdedit.exe 2160 bcdedit.exe -
pid Process 1836 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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation svchost.exe Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe -
Drops startup file 3 IoCs
description ioc Process 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 File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 4552 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\OneDrive\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\Accessibility\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\AccountPictures\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\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\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\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\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\Pictures\Camera Roll\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\Pictures\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\Contacts\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\System Tools\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\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 F:\$RECYCLE.BIN\S-1-5-21-2878641211-696417878-3864914810-1000\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\User Pinned\TaskBar\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\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini 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 4196 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2372 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4552 svchost.exe -
Suspicious behavior: EnumeratesProcesses 50 IoCs
pid Process 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe 4552 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe Token: SeDebugPrivilege 4552 svchost.exe Token: SeBackupPrivilege 468 vssvc.exe Token: SeRestorePrivilege 468 vssvc.exe Token: SeAuditPrivilege 468 vssvc.exe Token: SeIncreaseQuotaPrivilege 1620 WMIC.exe Token: SeSecurityPrivilege 1620 WMIC.exe Token: SeTakeOwnershipPrivilege 1620 WMIC.exe Token: SeLoadDriverPrivilege 1620 WMIC.exe Token: SeSystemProfilePrivilege 1620 WMIC.exe Token: SeSystemtimePrivilege 1620 WMIC.exe Token: SeProfSingleProcessPrivilege 1620 WMIC.exe Token: SeIncBasePriorityPrivilege 1620 WMIC.exe Token: SeCreatePagefilePrivilege 1620 WMIC.exe Token: SeBackupPrivilege 1620 WMIC.exe Token: SeRestorePrivilege 1620 WMIC.exe Token: SeShutdownPrivilege 1620 WMIC.exe Token: SeDebugPrivilege 1620 WMIC.exe Token: SeSystemEnvironmentPrivilege 1620 WMIC.exe Token: SeRemoteShutdownPrivilege 1620 WMIC.exe Token: SeUndockPrivilege 1620 WMIC.exe Token: SeManageVolumePrivilege 1620 WMIC.exe Token: 33 1620 WMIC.exe Token: 34 1620 WMIC.exe Token: 35 1620 WMIC.exe Token: 36 1620 WMIC.exe Token: SeIncreaseQuotaPrivilege 1620 WMIC.exe Token: SeSecurityPrivilege 1620 WMIC.exe Token: SeTakeOwnershipPrivilege 1620 WMIC.exe Token: SeLoadDriverPrivilege 1620 WMIC.exe Token: SeSystemProfilePrivilege 1620 WMIC.exe Token: SeSystemtimePrivilege 1620 WMIC.exe Token: SeProfSingleProcessPrivilege 1620 WMIC.exe Token: SeIncBasePriorityPrivilege 1620 WMIC.exe Token: SeCreatePagefilePrivilege 1620 WMIC.exe Token: SeBackupPrivilege 1620 WMIC.exe Token: SeRestorePrivilege 1620 WMIC.exe Token: SeShutdownPrivilege 1620 WMIC.exe Token: SeDebugPrivilege 1620 WMIC.exe Token: SeSystemEnvironmentPrivilege 1620 WMIC.exe Token: SeRemoteShutdownPrivilege 1620 WMIC.exe Token: SeUndockPrivilege 1620 WMIC.exe Token: SeManageVolumePrivilege 1620 WMIC.exe Token: 33 1620 WMIC.exe Token: 34 1620 WMIC.exe Token: 35 1620 WMIC.exe Token: 36 1620 WMIC.exe Token: SeBackupPrivilege 3408 wbengine.exe Token: SeRestorePrivilege 3408 wbengine.exe Token: SeSecurityPrivilege 3408 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 4660 wrote to memory of 4552 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 88 PID 4660 wrote to memory of 4552 4660 2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe 88 PID 4552 wrote to memory of 924 4552 svchost.exe 95 PID 4552 wrote to memory of 924 4552 svchost.exe 95 PID 924 wrote to memory of 4196 924 cmd.exe 97 PID 924 wrote to memory of 4196 924 cmd.exe 97 PID 924 wrote to memory of 1620 924 cmd.exe 101 PID 924 wrote to memory of 1620 924 cmd.exe 101 PID 4552 wrote to memory of 2652 4552 svchost.exe 102 PID 4552 wrote to memory of 2652 4552 svchost.exe 102 PID 2652 wrote to memory of 1172 2652 cmd.exe 104 PID 2652 wrote to memory of 1172 2652 cmd.exe 104 PID 2652 wrote to memory of 2160 2652 cmd.exe 105 PID 2652 wrote to memory of 2160 2652 cmd.exe 105 PID 4552 wrote to memory of 3244 4552 svchost.exe 107 PID 4552 wrote to memory of 3244 4552 svchost.exe 107 PID 3244 wrote to memory of 1836 3244 cmd.exe 109 PID 3244 wrote to memory of 1836 3244 cmd.exe 109 PID 4552 wrote to memory of 2372 4552 svchost.exe 114 PID 4552 wrote to memory of 2372 4552 svchost.exe 114 -
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\2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-16_7c556a045999ea1ca4f00d5b9b886b4c_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4660 -
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)
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4552 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:924 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:4196
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1620
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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:2652 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:1172
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2160
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:3244 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1836
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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:2372
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:468
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3408
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2292
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:1412
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
23KB
MD57c556a045999ea1ca4f00d5b9b886b4c
SHA1e99a8deb643a2fb835a51664d384c1d9677e7698
SHA2568cafe2829a80bcc87175685e04d9297c8403453d274a2be2c90d764f0c88991d
SHA512b9e142a7a7524febf3f919b28f3b150a0fcff1b5f5948accbe84ceb89a3cbccd130057b4806d0c2b38cdee5803fb189e2200ff29cc9f9954132787c8a1c0b8dd
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Filesize
755B
MD5ab89c3aa2151781f57352fd2d7d8b73e
SHA190be8d872e6a7c36e2ffd4a51bece1727506ef31
SHA256079d6eb4aed2f7d634e9f8efaea827ff221f0f03bdd72674647c58b509d15ecb
SHA5124edeb4583ba91c63bf84e733f59eed9158fa7ede0b65d478ffe71d2c8bbc56cee964188e5dd1b98f8b4759d86aa6ee6e709a6aa364f92ce5da04b0785e38e3d3