Analysis
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max time kernel
163s -
max time network
180s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
13-02-2022 12:20
Static task
static1
Behavioral task
behavioral1
Sample
ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exe
Resource
win10v2004-en-20220112
General
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Target
ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exe
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Size
34KB
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MD5
a5444dd6ee8773915096c31bd882e247
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SHA1
88265756945984ebd5fe58827c39ca1f1a2bf487
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SHA256
ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72
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SHA512
1d535287436a2b30895860ca5e06784bc6d1a3c35f513e890d44ce3a84bbdead3ff39882929cce1e5a62a186999e639bd8473da2384f1c8f5326c993a3fc2247
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\!satana!.txt
Signatures
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Satana
Ransomware family which also encrypts the system's Master Boot Record (MBR).
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Executes dropped EXE 1 IoCs
Processes:
innnvj.exepid process 3656 innnvj.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exe Set value (str) \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bgwkxqy = "C:\\Users\\Admin\\AppData\\Local\\Temp\\!satana!.txt" ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
Processes:
innnvj.exedescription ioc process File opened for modification \??\PHYSICALDRIVE0 innnvj.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 50 IoCs
Processes:
svchost.exedescription ioc process 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\UploadRatePct = "100" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4300" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "3976" 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\DownloadMonthlyLinkLocalBytes = "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\MonthID = "2" 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 (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "4.761923" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config 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\DownloadMonthlyRateFrCnt = "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\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\BkDownloadRatePct = "45" 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\DownloadMonthlyRateFrBps = "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\SwarmCount = "1" 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\LinkLocalConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4076" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "11.109365" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132894048609216334" 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\UploadCount = "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\SwarmCount = "0" 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 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\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\FrDownloadRatePct = "90" 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\Config\DownloadMode_BackCompat = "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\DownloadMonthlyGroupBytes = "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\DownloadMonthlyInternetBytes = "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\DownlinkUsageBps = "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\DownloadMonthlyRateBkBps = "0" svchost.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exeinnnvj.exedescription pid process Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeIncBasePriorityPrivilege 3656 innnvj.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe Token: SeBackupPrivilege 1796 TiWorker.exe Token: SeRestorePrivilege 1796 TiWorker.exe Token: SeSecurityPrivilege 1796 TiWorker.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exedescription pid process target process PID 3728 wrote to memory of 3656 3728 ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exe innnvj.exe PID 3728 wrote to memory of 3656 3728 ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exe innnvj.exe PID 3728 wrote to memory of 3656 3728 ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exe innnvj.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exe"C:\Users\Admin\AppData\Local\Temp\ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3728 -
C:\Users\Admin\AppData\Local\Temp\innnvj.exe"C:\Users\Admin\AppData\Local\Temp\innnvj.exe" {be652f30-73f6-11ec-82c1-806e6f6e6963} "C:\Users\Admin\AppData\Local\Temp\EA2C16~1.EXE"2⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- Suspicious use of AdjustPrivilegeToken
PID:3656
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:1552
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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:3832
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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:1796
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
56fcb7602d356ca1c2e7bc9f94e66724
SHA16c20da0ff228a720376a824129a35e9a5679a98f
SHA25601a734ce83dba0a25b9aff72258e785b127b0a80303e7985bba477c0aa7524aa
SHA512615310dfeff574648ff4a8476069d4fab7ad92316de40964c0a8918f0ade816f62ec2bf82366dd5084edd50bafd6a5af8b50caa351c12e4092a0390fb2647043
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MD5
a5444dd6ee8773915096c31bd882e247
SHA188265756945984ebd5fe58827c39ca1f1a2bf487
SHA256ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72
SHA5121d535287436a2b30895860ca5e06784bc6d1a3c35f513e890d44ce3a84bbdead3ff39882929cce1e5a62a186999e639bd8473da2384f1c8f5326c993a3fc2247
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MD5
a5444dd6ee8773915096c31bd882e247
SHA188265756945984ebd5fe58827c39ca1f1a2bf487
SHA256ea2c169529e782994be5296c81ff4668dba2b77a805bd057b53e5952c65aaf72
SHA5121d535287436a2b30895860ca5e06784bc6d1a3c35f513e890d44ce3a84bbdead3ff39882929cce1e5a62a186999e639bd8473da2384f1c8f5326c993a3fc2247