Analysis
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max time kernel
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max time network
96s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
23-08-2024 10:47
Behavioral task
behavioral1
Sample
2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe
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Size
26KB
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MD5
3a27830fed015d1acd1f6c79dca74227
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SHA1
277fba00e4198dc3db2991224d483b1eb8d3a1d2
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SHA256
b73c1864be869a047eb7961dc47b273e53dc5fe3eb6161caf82076ad62c7e3b5
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SHA512
396f04ffad3017d129613ec7e5b5d4df317aa99ebfbdb9792ddd11f542eaf4ebc887488359dfe4e70cf5131b088b929dc14b30d992655ba25ca56adcbe06f9e4
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SSDEEP
384:NkMg/bqoymcxtinmfS4+X0ZewJFr91CnmIxb5Mef/:Sqoyptomq4+ks4Fr9NIxbaef/
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
resource yara_rule behavioral2/memory/4988-1-0x00000000007D0000-0x00000000007E0000-memory.dmp family_chaos behavioral2/files/0x0006000000022a85-6.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 4380 bcdedit.exe 4448 bcdedit.exe -
pid Process 1312 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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe Key value queried \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\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 4904 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\Libraries\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\Music\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\Admin\Videos\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\Documents\desktop.ini svchost.exe 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\Administrative Tools\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\Windows\Recent\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\Windows\Start Menu\Programs\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\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\Links\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\Searches\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\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2718105630-359604950-2820636825-1000\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\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\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 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_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 -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2156 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000_Classes\Local Settings svchost.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 3996 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4904 svchost.exe -
Suspicious behavior: EnumeratesProcesses 49 IoCs
pid Process 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe 4904 svchost.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe Token: SeDebugPrivilege 4904 svchost.exe Token: SeBackupPrivilege 3820 vssvc.exe Token: SeRestorePrivilege 3820 vssvc.exe Token: SeAuditPrivilege 3820 vssvc.exe Token: SeIncreaseQuotaPrivilege 4496 WMIC.exe Token: SeSecurityPrivilege 4496 WMIC.exe Token: SeTakeOwnershipPrivilege 4496 WMIC.exe Token: SeLoadDriverPrivilege 4496 WMIC.exe Token: SeSystemProfilePrivilege 4496 WMIC.exe Token: SeSystemtimePrivilege 4496 WMIC.exe Token: SeProfSingleProcessPrivilege 4496 WMIC.exe Token: SeIncBasePriorityPrivilege 4496 WMIC.exe Token: SeCreatePagefilePrivilege 4496 WMIC.exe Token: SeBackupPrivilege 4496 WMIC.exe Token: SeRestorePrivilege 4496 WMIC.exe Token: SeShutdownPrivilege 4496 WMIC.exe Token: SeDebugPrivilege 4496 WMIC.exe Token: SeSystemEnvironmentPrivilege 4496 WMIC.exe Token: SeRemoteShutdownPrivilege 4496 WMIC.exe Token: SeUndockPrivilege 4496 WMIC.exe Token: SeManageVolumePrivilege 4496 WMIC.exe Token: 33 4496 WMIC.exe Token: 34 4496 WMIC.exe Token: 35 4496 WMIC.exe Token: 36 4496 WMIC.exe Token: SeIncreaseQuotaPrivilege 4496 WMIC.exe Token: SeSecurityPrivilege 4496 WMIC.exe Token: SeTakeOwnershipPrivilege 4496 WMIC.exe Token: SeLoadDriverPrivilege 4496 WMIC.exe Token: SeSystemProfilePrivilege 4496 WMIC.exe Token: SeSystemtimePrivilege 4496 WMIC.exe Token: SeProfSingleProcessPrivilege 4496 WMIC.exe Token: SeIncBasePriorityPrivilege 4496 WMIC.exe Token: SeCreatePagefilePrivilege 4496 WMIC.exe Token: SeBackupPrivilege 4496 WMIC.exe Token: SeRestorePrivilege 4496 WMIC.exe Token: SeShutdownPrivilege 4496 WMIC.exe Token: SeDebugPrivilege 4496 WMIC.exe Token: SeSystemEnvironmentPrivilege 4496 WMIC.exe Token: SeRemoteShutdownPrivilege 4496 WMIC.exe Token: SeUndockPrivilege 4496 WMIC.exe Token: SeManageVolumePrivilege 4496 WMIC.exe Token: 33 4496 WMIC.exe Token: 34 4496 WMIC.exe Token: 35 4496 WMIC.exe Token: 36 4496 WMIC.exe Token: SeBackupPrivilege 408 wbengine.exe Token: SeRestorePrivilege 408 wbengine.exe Token: SeSecurityPrivilege 408 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 4988 wrote to memory of 4904 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 90 PID 4988 wrote to memory of 4904 4988 2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe 90 PID 4904 wrote to memory of 3428 4904 svchost.exe 95 PID 4904 wrote to memory of 3428 4904 svchost.exe 95 PID 3428 wrote to memory of 2156 3428 cmd.exe 97 PID 3428 wrote to memory of 2156 3428 cmd.exe 97 PID 3428 wrote to memory of 4496 3428 cmd.exe 100 PID 3428 wrote to memory of 4496 3428 cmd.exe 100 PID 4904 wrote to memory of 3592 4904 svchost.exe 101 PID 4904 wrote to memory of 3592 4904 svchost.exe 101 PID 3592 wrote to memory of 4380 3592 cmd.exe 103 PID 3592 wrote to memory of 4380 3592 cmd.exe 103 PID 3592 wrote to memory of 4448 3592 cmd.exe 104 PID 3592 wrote to memory of 4448 3592 cmd.exe 104 PID 4904 wrote to memory of 920 4904 svchost.exe 105 PID 4904 wrote to memory of 920 4904 svchost.exe 105 PID 920 wrote to memory of 1312 920 cmd.exe 107 PID 920 wrote to memory of 1312 920 cmd.exe 107 PID 4904 wrote to memory of 3996 4904 svchost.exe 113 PID 4904 wrote to memory of 3996 4904 svchost.exe 113 -
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\2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-23_3a27830fed015d1acd1f6c79dca74227_destroyer_wannacry.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4988 -
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:4904 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:3428 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2156
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4496
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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:3592 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:4380
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:4448
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:920 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1312
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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:3996
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3820
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:408
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:3556
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:1376
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
26KB
MD53a27830fed015d1acd1f6c79dca74227
SHA1277fba00e4198dc3db2991224d483b1eb8d3a1d2
SHA256b73c1864be869a047eb7961dc47b273e53dc5fe3eb6161caf82076ad62c7e3b5
SHA512396f04ffad3017d129613ec7e5b5d4df317aa99ebfbdb9792ddd11f542eaf4ebc887488359dfe4e70cf5131b088b929dc14b30d992655ba25ca56adcbe06f9e4
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740