Analysis
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max time kernel
158s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 09:32
Static task
static1
Behavioral task
behavioral1
Sample
09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe
Resource
win10v2004-en-20220112
General
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Target
09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe
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Size
176KB
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MD5
0685bb3813be887ee0d1d0950810f351
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SHA1
5da37a8b9000eb29640a6258e488f71f8b1b89fd
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SHA256
09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a
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SHA512
a1d71e43f1c982c0d98d2881b071b342d9947b60c9fd4d568476219be7f3c983300e13408f0a583c987175b9cb8a9783ad445c0851c3c718d622aa655b7e18af
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/2980-132-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula behavioral2/memory/920-133-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula -
Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 920 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.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 51 IoCs
Processes:
svchost.exedescription ioc process 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\UplinkUsageBps = "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\NormalDownloadPendingCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "4.929390" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "0.000000" 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\DownloadMonthlyCacheHostBytes = "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\CDNConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkUsageBps = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "13.336366" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "12.499200" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "3932" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4316" 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 (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132893083775084516" 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\MonthlyUploadRestriction = "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\DownloadMonthlyGroupBytes = "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\UplinkBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4140" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "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\DownloadMonthlyRateFrCnt = "0" 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\InternetConnectionCount = "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\FrDownloadRatePct = "90" 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 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\DownloadMonthlyRateFrBps = "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\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\PriorityDownloadCount = "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\PeerInfoCount = "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\Config\DownloadMode_BackCompat = "1" 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\Usage 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\DownloadMonthlyLinkLocalBytes = "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\UploadCount = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exedescription pid process Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe Token: SeRestorePrivilege 1832 TiWorker.exe Token: SeSecurityPrivilege 1832 TiWorker.exe Token: SeBackupPrivilege 1832 TiWorker.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.execmd.exedescription pid process target process PID 2980 wrote to memory of 920 2980 09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe MediaCenter.exe PID 2980 wrote to memory of 920 2980 09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe MediaCenter.exe PID 2980 wrote to memory of 920 2980 09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe MediaCenter.exe PID 2980 wrote to memory of 3164 2980 09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe cmd.exe PID 2980 wrote to memory of 3164 2980 09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe cmd.exe PID 2980 wrote to memory of 3164 2980 09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe cmd.exe PID 3164 wrote to memory of 3640 3164 cmd.exe PING.EXE PID 3164 wrote to memory of 3640 3164 cmd.exe PING.EXE PID 3164 wrote to memory of 3640 3164 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe"C:\Users\Admin\AppData\Local\Temp\09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2980 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:920 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3164 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3640
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:1716
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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:1128
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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:1832
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
b3b8e4adce7296277dbd4d5443626988
SHA187938df8376e76eebfd2c7a13d92adf8e221f038
SHA256f4cc63300626f36d3ae7fd7eb38b789ef57dcc962f81c53048d2bcac09dd0bc9
SHA512cd729d952a143fc4cf7d0a47361e2c1f85368575e01ee2b0e17289f430782aeea5f1a328d168a5cc034edd08ae81a8f62b91e91d4dcf94baec1cca9bb697f7f4
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
b3b8e4adce7296277dbd4d5443626988
SHA187938df8376e76eebfd2c7a13d92adf8e221f038
SHA256f4cc63300626f36d3ae7fd7eb38b789ef57dcc962f81c53048d2bcac09dd0bc9
SHA512cd729d952a143fc4cf7d0a47361e2c1f85368575e01ee2b0e17289f430782aeea5f1a328d168a5cc034edd08ae81a8f62b91e91d4dcf94baec1cca9bb697f7f4
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memory/920-133-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/2980-132-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB