Analysis
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max time kernel
157s -
max time network
179s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 02:58
Static task
static1
Behavioral task
behavioral1
Sample
18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exe
Resource
win10v2004-en-20220112
General
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Target
18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exe
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Size
92KB
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MD5
1110a2db947ca51e01229be38ec9b52e
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SHA1
05e079104486cba714bb08852a4bb2c8f09309fd
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SHA256
18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa
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SHA512
554da8b7ac567e893192b8a8421e0c23b6304f4c5799b825cf7c1985692219154ec3ba91ed7bd8c341d5a23774a513112dc60ab7b4f13d329ae674a4b95b3492
Malware Config
Signatures
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Sakula Payload 2 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe family_sakula C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe family_sakula -
suricata: ET MALWARE SUSPICIOUS UA (iexplore)
suricata: ET MALWARE SUSPICIOUS UA (iexplore)
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suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1
suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1
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Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 2528 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exe -
Drops file in Windows directory 3 IoCs
Processes:
svchost.exeTiWorker.exedescription ioc process File opened for modification C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat svchost.exe File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe File opened for modification C:\Windows\WinSxS\pending.xml TiWorker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
MusNotifyIcon.exedescription 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 -
Modifies data under HKEY_USERS 49 IoCs
Processes:
svchost.exedescription ioc process 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\DownloadMonthlyRateBkCnt = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132892847874585134" 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\UploadCount = "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\Usage\DownloadMonthlyInternetBytes = "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\MonthlyUploadRestriction = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4132" 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\DownloadMonthlyRateFrCnt = "0" 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\FrDownloadRatePct = "90" 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\Usage\MemoryUsageKB = "4348" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "33.376055" 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\DownloadMonthlyCdnBytes = "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\LANConnectionCount = "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\Config\DODownloadMode = "1" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyLanBytes = "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\PriorityDownloadCount = "0" 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\Usage\DownloadMonthlyLanBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2" 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\UplinkBps = "0" 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\UploadMonthlyInternetBytes = "0" 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\Geo_EndpointFullUri = "https://geo.prod.do.dsp.mp.microsoft.com/geo" 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\CacheSizeBytes = "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\InternetConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkUsageBps = "0" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config 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\NormalDownloadPendingCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "5.001274" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "4.255068" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "0" 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\DownloadMonthlyRateFrBps = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exe18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exedescription pid process Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeIncBasePriorityPrivilege 216 18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe Token: SeBackupPrivilege 3340 TiWorker.exe Token: SeRestorePrivilege 3340 TiWorker.exe Token: SeSecurityPrivilege 3340 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.execmd.exedescription pid process target process PID 216 wrote to memory of 2528 216 18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exe MediaCenter.exe PID 216 wrote to memory of 2528 216 18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exe MediaCenter.exe PID 216 wrote to memory of 2528 216 18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exe MediaCenter.exe PID 216 wrote to memory of 364 216 18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exe cmd.exe PID 216 wrote to memory of 364 216 18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exe cmd.exe PID 216 wrote to memory of 364 216 18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exe cmd.exe PID 364 wrote to memory of 1844 364 cmd.exe PING.EXE PID 364 wrote to memory of 1844 364 cmd.exe PING.EXE PID 364 wrote to memory of 1844 364 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exe"C:\Users\Admin\AppData\Local\Temp\18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:216 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:2528 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\18ebf5a9b5bed13955e5c2cb0b11670a883a9ae30e04f0ec8441b8ca8d52f5aa.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:364 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:1844
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3532
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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:3176
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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:3340
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
9b8732e90d176eaae9ec84ae935f7606
SHA19e4246105281d8b316834f651da7a3d4199f6851
SHA2566eb386a560e00d42a02ae1cb60e2d8b4fa06bf77c89af5387706de611ad5744a
SHA512800630a4b511f8359e14de48c34cf6bd9c909e5c8a34d4662621da4ebcc44ee3748cba3a4dfe9a444fe0080153c82319c092780cf6f195819ba09eaa2fe922f3
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MD5
9b8732e90d176eaae9ec84ae935f7606
SHA19e4246105281d8b316834f651da7a3d4199f6851
SHA2566eb386a560e00d42a02ae1cb60e2d8b4fa06bf77c89af5387706de611ad5744a
SHA512800630a4b511f8359e14de48c34cf6bd9c909e5c8a34d4662621da4ebcc44ee3748cba3a4dfe9a444fe0080153c82319c092780cf6f195819ba09eaa2fe922f3