Analysis
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max time kernel
164s -
max time network
177s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 11:32
Static task
static1
Behavioral task
behavioral1
Sample
04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe
Resource
win10v2004-en-20220112
General
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Target
04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe
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Size
36KB
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MD5
51a2252acd5f8fac8ffa76f2802746fd
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SHA1
6748f0b13dd6fb6f7afb0eb1ceb6d5aabeff3f91
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SHA256
04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd
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SHA512
b0eb27b19cf5869f3c75acb7f5ccb98e8e00080e5b12070427501a1333f9ec7dec87b92f14cfc96e6c59e6f59211e844b835a4a962cac18fc556812ea787247e
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 2948 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe -
Drops file in Windows directory 3 IoCs
Processes:
TiWorker.exesvchost.exedescription 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.
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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 54 IoCs
Processes:
svchost.exedescription ioc process 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\MemoryUsageKB = "4220" 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 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\MonthID = "1" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132893170001816264" 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\LinkLocalConnectionCount = "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\DownloadMonthlyRateBkCnt = "4" 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\DownloadMonthlyRateBkBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "90228624" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "9.804056" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "1157726" 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\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\Config\DODownloadMode = "1" 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\DownloadMonthlyCacheHostBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "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\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\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\Usage\DownloadMonthlyCdnBytes = "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\DownloadMonthlyGroupBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4280" 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\NormalDownloadPendingCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "16.676806" 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\DownloadMonthlyRateFrBps = "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\UplinkBps = "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\DownlinkBps = "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\UploadMonthlyInternetBytes = "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\GroupConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.104987" 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\UploadRatePct = "100" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0" 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\DownloadMonthlyLinkLocalBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exeTiWorker.exedescription pid process Token: SeIncBasePriorityPrivilege 1224 04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe Token: SeBackupPrivilege 364 TiWorker.exe Token: SeRestorePrivilege 364 TiWorker.exe Token: SeSecurityPrivilege 364 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.execmd.exedescription pid process target process PID 1224 wrote to memory of 2948 1224 04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe MediaCenter.exe PID 1224 wrote to memory of 2948 1224 04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe MediaCenter.exe PID 1224 wrote to memory of 2948 1224 04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe MediaCenter.exe PID 1224 wrote to memory of 3332 1224 04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe cmd.exe PID 1224 wrote to memory of 3332 1224 04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe cmd.exe PID 1224 wrote to memory of 3332 1224 04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe cmd.exe PID 3332 wrote to memory of 2052 3332 cmd.exe PING.EXE PID 3332 wrote to memory of 2052 3332 cmd.exe PING.EXE PID 3332 wrote to memory of 2052 3332 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe"C:\Users\Admin\AppData\Local\Temp\04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1224 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:2948 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3332 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:2052
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:2916
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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:2468
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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:364
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
a329a7af2341192e5d0a269f35c20fea
SHA1fb428fda81b1e4b130e736f28a7d2c59104167a9
SHA25689c35536722fd3ccb89138fea8d85bc6665e6ecb932839e38e94c2893b2b1c0d
SHA512d63019c41d2db12e56057a32ffa9bc18164d97e2f670a0917e909afd1356749ad2b854a8a0a6ba28d3c8d7a3fbec1afe61e9a3cd3013d9a4f21898ea135896f8
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
a329a7af2341192e5d0a269f35c20fea
SHA1fb428fda81b1e4b130e736f28a7d2c59104167a9
SHA25689c35536722fd3ccb89138fea8d85bc6665e6ecb932839e38e94c2893b2b1c0d
SHA512d63019c41d2db12e56057a32ffa9bc18164d97e2f670a0917e909afd1356749ad2b854a8a0a6ba28d3c8d7a3fbec1afe61e9a3cd3013d9a4f21898ea135896f8