Analysis
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max time kernel
34s -
max time network
37s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
04/10/2024, 19:19
Behavioral task
behavioral1
Sample
1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe
Resource
win10v2004-20240802-en
General
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Target
1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe
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Size
90KB
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MD5
ffc57c8e2bd70a2bc54a57831365206c
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SHA1
f796709aa9cb78452e9d1ed405ba2dfee2338e95
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SHA256
1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f
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SHA512
e4015d0c80690bc4c478f19c95ed5429a618bc389a5c4201e459bfe842e270c8b325727cbde2c35c12d8fc5e0ccaa1159de554eaa775e7f1046f7405f2f66990
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SSDEEP
768:Xqo2LyU8dUp5nj8Wd3ELLr9m/HbQe3eyUfi3yLDTV:ao22vdynrd3ELLr9853eywKyLDTV
Malware Config
Extracted
C:\Users\Admin\Documents\CONSENTIMIENTO.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/5012-1-0x0000000000E20000-0x0000000000E3C000-memory.dmp family_chaos behavioral2/files/0x0008000000023471-6.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 220 bcdedit.exe 4828 bcdedit.exe -
pid Process 3020 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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe Key value queried \REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation Microsoft365.exe -
Drops startup file 3 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft365.url Microsoft365.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini Microsoft365.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CONSENTIMIENTO.txt Microsoft365.exe -
Executes dropped EXE 1 IoCs
pid Process 64 Microsoft365.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\System Tools\Desktop.ini Microsoft365.exe File opened for modification C:\Users\Public\Music\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini Microsoft365.exe File opened for modification C:\Users\Public\Pictures\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\Videos\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\Documents\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\Music\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini Microsoft365.exe File opened for modification C:\Users\Public\Videos\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini Microsoft365.exe File opened for modification C:\Users\Public\Desktop\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\Links\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\OneDrive\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\Searches\desktop.ini Microsoft365.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Microsoft365.exe File opened for modification C:\Users\Public\Documents\desktop.ini Microsoft365.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-355097885-2402257403-2971294179-1000\desktop.ini Microsoft365.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 816 vssadmin.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000_Classes\Local Settings Microsoft365.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 4616 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 64 Microsoft365.exe -
Suspicious behavior: EnumeratesProcesses 49 IoCs
pid Process 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe 64 Microsoft365.exe -
Suspicious use of AdjustPrivilegeToken 50 IoCs
description pid Process Token: SeDebugPrivilege 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe Token: SeDebugPrivilege 64 Microsoft365.exe Token: SeBackupPrivilege 4132 vssvc.exe Token: SeRestorePrivilege 4132 vssvc.exe Token: SeAuditPrivilege 4132 vssvc.exe Token: SeIncreaseQuotaPrivilege 4588 WMIC.exe Token: SeSecurityPrivilege 4588 WMIC.exe Token: SeTakeOwnershipPrivilege 4588 WMIC.exe Token: SeLoadDriverPrivilege 4588 WMIC.exe Token: SeSystemProfilePrivilege 4588 WMIC.exe Token: SeSystemtimePrivilege 4588 WMIC.exe Token: SeProfSingleProcessPrivilege 4588 WMIC.exe Token: SeIncBasePriorityPrivilege 4588 WMIC.exe Token: SeCreatePagefilePrivilege 4588 WMIC.exe Token: SeBackupPrivilege 4588 WMIC.exe Token: SeRestorePrivilege 4588 WMIC.exe Token: SeShutdownPrivilege 4588 WMIC.exe Token: SeDebugPrivilege 4588 WMIC.exe Token: SeSystemEnvironmentPrivilege 4588 WMIC.exe Token: SeRemoteShutdownPrivilege 4588 WMIC.exe Token: SeUndockPrivilege 4588 WMIC.exe Token: SeManageVolumePrivilege 4588 WMIC.exe Token: 33 4588 WMIC.exe Token: 34 4588 WMIC.exe Token: 35 4588 WMIC.exe Token: 36 4588 WMIC.exe Token: SeIncreaseQuotaPrivilege 4588 WMIC.exe Token: SeSecurityPrivilege 4588 WMIC.exe Token: SeTakeOwnershipPrivilege 4588 WMIC.exe Token: SeLoadDriverPrivilege 4588 WMIC.exe Token: SeSystemProfilePrivilege 4588 WMIC.exe Token: SeSystemtimePrivilege 4588 WMIC.exe Token: SeProfSingleProcessPrivilege 4588 WMIC.exe Token: SeIncBasePriorityPrivilege 4588 WMIC.exe Token: SeCreatePagefilePrivilege 4588 WMIC.exe Token: SeBackupPrivilege 4588 WMIC.exe Token: SeRestorePrivilege 4588 WMIC.exe Token: SeShutdownPrivilege 4588 WMIC.exe Token: SeDebugPrivilege 4588 WMIC.exe Token: SeSystemEnvironmentPrivilege 4588 WMIC.exe Token: SeRemoteShutdownPrivilege 4588 WMIC.exe Token: SeUndockPrivilege 4588 WMIC.exe Token: SeManageVolumePrivilege 4588 WMIC.exe Token: 33 4588 WMIC.exe Token: 34 4588 WMIC.exe Token: 35 4588 WMIC.exe Token: 36 4588 WMIC.exe Token: SeBackupPrivilege 4960 wbengine.exe Token: SeRestorePrivilege 4960 wbengine.exe Token: SeSecurityPrivilege 4960 wbengine.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 5012 wrote to memory of 64 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 82 PID 5012 wrote to memory of 64 5012 1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe 82 PID 64 wrote to memory of 3532 64 Microsoft365.exe 84 PID 64 wrote to memory of 3532 64 Microsoft365.exe 84 PID 3532 wrote to memory of 816 3532 cmd.exe 86 PID 3532 wrote to memory of 816 3532 cmd.exe 86 PID 3532 wrote to memory of 4588 3532 cmd.exe 89 PID 3532 wrote to memory of 4588 3532 cmd.exe 89 PID 64 wrote to memory of 1940 64 Microsoft365.exe 91 PID 64 wrote to memory of 1940 64 Microsoft365.exe 91 PID 1940 wrote to memory of 220 1940 cmd.exe 93 PID 1940 wrote to memory of 220 1940 cmd.exe 93 PID 1940 wrote to memory of 4828 1940 cmd.exe 94 PID 1940 wrote to memory of 4828 1940 cmd.exe 94 PID 64 wrote to memory of 1884 64 Microsoft365.exe 95 PID 64 wrote to memory of 1884 64 Microsoft365.exe 95 PID 1884 wrote to memory of 3020 1884 cmd.exe 97 PID 1884 wrote to memory of 3020 1884 cmd.exe 97 PID 64 wrote to memory of 4616 64 Microsoft365.exe 101 PID 64 wrote to memory of 4616 64 Microsoft365.exe 101 -
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\1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe"C:\Users\Admin\AppData\Local\Temp\1d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5012 -
C:\Users\Admin\AppData\Roaming\Microsoft365.exe"C:\Users\Admin\AppData\Roaming\Microsoft365.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:64 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:3532 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:816
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:4588
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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:1940 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:220
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:4828
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1884 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:3020
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\CONSENTIMIENTO.txt3⤵
- Opens file in notepad (likely ransom note)
PID:4616
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4132
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4960
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:4800
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:3312
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
90KB
MD5ffc57c8e2bd70a2bc54a57831365206c
SHA1f796709aa9cb78452e9d1ed405ba2dfee2338e95
SHA2561d9b7f8264e5395f19691942028ef38cfe25368e2a97cb6af32e0b741f32314f
SHA512e4015d0c80690bc4c478f19c95ed5429a618bc389a5c4201e459bfe842e270c8b325727cbde2c35c12d8fc5e0ccaa1159de554eaa775e7f1046f7405f2f66990
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Filesize
964B
MD54217b8b83ce3c3f70029a056546f8fd0
SHA1487cdb5733d073a0427418888e8f7070fe782a03
SHA2567d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121
SHA5122a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740