Analysis
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max time kernel
177s -
max time network
196s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
16-02-2022 22:55
Static task
static1
Behavioral task
behavioral1
Sample
65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe
Resource
win10v2004-en-20220112
General
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Target
65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe
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Size
384KB
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MD5
a6c6d9747407034817b1b0e739cc07d7
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SHA1
545f28e3ac5e91665fc0f36671594c081971db4f
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SHA256
65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c
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SHA512
d64834e13454c7e72707cf249da770abf9cc74f1ad6d55fb7c396d7246aa6bd8c9a7d4a95fec24ab7aa27df9f034d6dc913dd7ae87b72d918935fc9e373eb895
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/875c09839052a1fd
https://mazedecrypt.top/875c09839052a1fd
Signatures
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Maze
Ransomware family also known as ChaCha.
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Drops file in Program Files directory 28 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\875c09839052a1fd.tmp 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\AssertInvoke.mid 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\ConfirmOut.wmx 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\ConvertOptimize.shtml 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\UnregisterReceive.mhtml 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\RestoreCheckpoint.shtml 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\UnpublishClose.css 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\EditUpdate.bat 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\ExportRegister.odt 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\FindDismount.mp2 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\ProtectEnter.gif 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\InitializeJoin.inf 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\MoveUpdate.jpg 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\ResetFormat.vbe 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\ProtectApprove.WTV 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\875c09839052a1fd.tmp 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\AssertDeny.css 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\ResumeRevoke.dotm 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File created C:\Program Files\DECRYPT-FILES.txt 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\CompleteUnprotect.mid 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\ConvertToUnprotect.mpg 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\ProtectRepair.asf 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\RevokeUnpublish.mpeg 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\AssertRegister.mhtml 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\InvokeUnpublish.ppt 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\RegisterResume.rar 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe File opened for modification C:\Program Files\RequestMeasure.3gpp 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe File opened for modification C:\Windows\WinSxS\pending.xml TiWorker.exe File opened for modification C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat svchost.exe -
Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MusNotifyIcon.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz MusNotifyIcon.exe Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MusNotifyIcon.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz MusNotifyIcon.exe -
Modifies data under HKEY_USERS 45 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\Geo_EndpointFullUri = "https://geo.prod.do.dsp.mp.microsoft.com/geo" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CacheSizeBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyInternetBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PeerInfoCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkUsageBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkUsageBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\BkDownloadRatePct = "45" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLinkLocalBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyInternetBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LANConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LinkLocalConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\GroupConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "0" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "1" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132897024782793012" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CDNConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.211099" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4080" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\GeoVersion_EndpointFullUri = "https://geover.prod.do.dsp.mp.microsoft.com/geoversion" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyLanBytes = "0" svchost.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3004 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe 3004 65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeBackupPrivilege 312 vssvc.exe Token: SeRestorePrivilege 312 vssvc.exe Token: SeAuditPrivilege 312 vssvc.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe Token: SeRestorePrivilege 3916 TiWorker.exe Token: SeSecurityPrivilege 3916 TiWorker.exe Token: SeBackupPrivilege 3916 TiWorker.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe"C:\Users\Admin\AppData\Local\Temp\65774dcf6d6e9a55be4250a1c95c93a92913bdbfcffce66af4bf7c8f4719489c.exe"1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:3004
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:2964
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:312
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
PID:1016
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3372
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C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exeC:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:3916