Analysis
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max time kernel
161s -
max time network
174s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 10:15
Static task
static1
Behavioral task
behavioral1
Sample
07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exe
Resource
win10v2004-en-20220112
General
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Target
07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exe
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Size
176KB
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MD5
31cd2b9e8c5d3b66b0d1bf737f82ec1b
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SHA1
d0da5a4d039bee96e3aa2e26483cf717d0338861
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SHA256
07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b
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SHA512
a0f1ec4191a4eefa24dc8296d8227ae561acba7bb0f51b862ef82477b3558990e671c8e8618c50daa7b82f679d5071511721eaa3dbd303575ae29b9e43ee93e8
Malware Config
Signatures
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Sakula Payload 4 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 behavioral2/memory/4028-132-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula behavioral2/memory/2188-133-0x0000000000400000-0x0000000000420000-memory.dmp 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 2188 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz MusNotifyIcon.exe Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 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\DownloadMonthlyGroupBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CDNConnectionCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.870648" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.020416" 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\Config\DODownloadMode = "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\DownloadMonthlyRateBkBps = "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\InternetConnectionCount = "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 Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.000000" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4112" 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\DownloadMonthlyLinkLocalBytes = "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\DownloadMonthlyRateFrCnt = "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\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\UploadMonthlyInternetBytes = "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\MemoryUsageKB = "4196" 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\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\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\DownloadMonthlyCdnBytes = "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\CacheSizeBytes = "0" 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\BkDownloadRatePct = "45" 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\PriorityDownloadCount = "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\LANConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90" 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\DownloadMonthlyRateBkCnt = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132893122894732535" 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\Config\DownloadMode_BackCompat = "1" 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\NormalDownloadPendingCount = "0" 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:
07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exeTiWorker.exedescription pid process Token: SeIncBasePriorityPrivilege 4028 07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe Token: SeBackupPrivilege 3152 TiWorker.exe Token: SeRestorePrivilege 3152 TiWorker.exe Token: SeSecurityPrivilege 3152 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.execmd.exedescription pid process target process PID 4028 wrote to memory of 2188 4028 07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exe MediaCenter.exe PID 4028 wrote to memory of 2188 4028 07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exe MediaCenter.exe PID 4028 wrote to memory of 2188 4028 07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exe MediaCenter.exe PID 4028 wrote to memory of 3192 4028 07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exe cmd.exe PID 4028 wrote to memory of 3192 4028 07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exe cmd.exe PID 4028 wrote to memory of 3192 4028 07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exe cmd.exe PID 3192 wrote to memory of 3488 3192 cmd.exe PING.EXE PID 3192 wrote to memory of 3488 3192 cmd.exe PING.EXE PID 3192 wrote to memory of 3488 3192 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exe"C:\Users\Admin\AppData\Local\Temp\07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4028 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:2188 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\07bb84db3fd89dc657994a86c5d6263925b30e017f4c410e407ca5cb1a80c46b.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3192 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3488
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:1276
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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:2140
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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:3152
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
ec784cc95b4bfe39f90361a9ceb190e6
SHA102128e2beaabd6909017faf47d7de8b35fd098f2
SHA256f7f93895eb5017027d75f9196e8866acae156ff7ab2a77c344269861883eba98
SHA512a81beadaaa2f82c8d67aaff5a1d247137a82e2cae081e1e718059a3318d097130e49611f817339afa8c4109995fefcce3df983e410d4410d5b131b07d96eab90
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
ec784cc95b4bfe39f90361a9ceb190e6
SHA102128e2beaabd6909017faf47d7de8b35fd098f2
SHA256f7f93895eb5017027d75f9196e8866acae156ff7ab2a77c344269861883eba98
SHA512a81beadaaa2f82c8d67aaff5a1d247137a82e2cae081e1e718059a3318d097130e49611f817339afa8c4109995fefcce3df983e410d4410d5b131b07d96eab90
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memory/2188-133-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/4028-132-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB