Analysis
- max time kernel
169s - max time network
185s - platform
windows10-2004_x64 - resource
win10v2004-en-20220112 - submitted
12/02/2022, 04:06
Static task
static1
Behavioral task
behavioral1
Sample
1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe
Resource
win10v2004-en-20220112
windows10-2004_x64
0 signatures
0 seconds
General
- Target 1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe
- Size 80KB
- Sample220212-epjvgshdaq
- SHA256 1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb
- MD5 f7fd7e9ab1d5dccc7a80331701805d3a
- SHA1 ec43d5e19b53b3308e3c613e13e831b5c56052e2
- SHA512 a40fb9914ec774df775d2bcac75ff956dcc1c90a5c50d883041089002c1f083eae84bf25596320659d64e524749cf8508b27ada2b002468d3320feae8e0dfbf6
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Sakula Payload 2 IoCs
resource yara_rule behavioral2/files/0x00070000000220e4-130.dat family_sakula behavioral2/files/0x00070000000220e4-131.dat family_sakula - Executes dropped EXE 1 IoCs
pid Process 2684 MediaCenter.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.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 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks processor information in registry 2 TTPs 2 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 - Modifies data under HKEY_USERS 49 IoCs
description ioc Process 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 = "4068" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4208" 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\UploadMonthlyInternetBytes = "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\LANConnectionCount = "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\UploadMonthlyLanBytes = "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\DownloadMonthlyLanBytes = "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\UplinkBps = "0" 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\NormalDownloadCount = "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\DownloadMonthlyGroupBytes = "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\Config\KVFileExpirationTime = "132892889011001865" 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 (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.847515" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization 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\FrDownloadRatePct = "90" 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\DownloadMonthlyCacheHostBytes = "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\LinkLocalConnectionCount = "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\UplinkUsageBps = "0" 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\DownloadMonthlyRateFrBps = "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\CacheSizeBytes = "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\NormalDownloadPendingCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "1.153839" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.699288" 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\MonthID = "2" 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\PriorityDownloadPendingCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "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 (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\UploadRatePct = "100" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "0" svchost.exe - Runs ping.exe 1 TTPs 1 IoCs
pid Process 1228 PING.EXE - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe Token: SeRestorePrivilege 1656 TiWorker.exe Token: SeSecurityPrivilege 1656 TiWorker.exe Token: SeBackupPrivilege 1656 TiWorker.exe - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1504 wrote to memory of 2684 1504 1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe 73 PID 1504 wrote to memory of 2684 1504 1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe 73 PID 1504 wrote to memory of 2684 1504 1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe 73 PID 1504 wrote to memory of 4092 1504 1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe 80 PID 1504 wrote to memory of 4092 1504 1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe 80 PID 1504 wrote to memory of 4092 1504 1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe 80 PID 4092 wrote to memory of 1228 4092 cmd.exe 82 PID 4092 wrote to memory of 1228 4092 cmd.exe 82 PID 4092 wrote to memory of 1228 4092 cmd.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe"C:\Users\Admin\AppData\Local\Temp\1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1504 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:2684
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1607bf258910a50dd943fdcf9fc823e59f3daaa70af9287af70c1f95c1c164fb.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:4092 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:1228
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3652
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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:2112
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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:1656