Analysis
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max time kernel
162s -
max time network
167s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
14-02-2022 08:19
Static task
static1
Behavioral task
behavioral1
Sample
19310dc6efef69446d55c4e3c91057ffa7645f4bf705a81be0b2069487952176.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
19310dc6efef69446d55c4e3c91057ffa7645f4bf705a81be0b2069487952176.exe
Resource
win10v2004-en-20220113
General
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Target
19310dc6efef69446d55c4e3c91057ffa7645f4bf705a81be0b2069487952176.exe
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Size
29KB
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MD5
1fa46b0e122c210a6dedfbd9e4b73f4c
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SHA1
9f9a8a087388416dbd84ab93371bcd38bd617d3d
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SHA256
19310dc6efef69446d55c4e3c91057ffa7645f4bf705a81be0b2069487952176
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SHA512
7e1587148fb0b1435d87323baa476956decaf130d0689ea5bf9241571b99850f361ac67824ba213bd62b2ab98331f5e8ecba0947ea3ba0b5ea8befbe76c7f9bc
Malware Config
Signatures
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Upatre
Upatre is a generic malware downloader.
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Executes dropped EXE 1 IoCs
pid Process 2524 szgfw.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-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation 19310dc6efef69446d55c4e3c91057ffa7645f4bf705a81be0b2069487952176.exe -
Drops file in Windows directory 8 IoCs
description ioc Process File opened for modification C:\Windows\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.edb svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm svchost.exe File opened for modification C:\Windows\SoftwareDistribution\ReportingEvents.log 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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Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 1756 svchost.exe Token: SeCreatePagefilePrivilege 1756 svchost.exe Token: SeShutdownPrivilege 1756 svchost.exe Token: SeCreatePagefilePrivilege 1756 svchost.exe Token: SeShutdownPrivilege 1756 svchost.exe Token: SeCreatePagefilePrivilege 1756 svchost.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe Token: SeRestorePrivilege 4936 TiWorker.exe Token: SeSecurityPrivilege 4936 TiWorker.exe Token: SeBackupPrivilege 4936 TiWorker.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5052 wrote to memory of 2524 5052 19310dc6efef69446d55c4e3c91057ffa7645f4bf705a81be0b2069487952176.exe 85 PID 5052 wrote to memory of 2524 5052 19310dc6efef69446d55c4e3c91057ffa7645f4bf705a81be0b2069487952176.exe 85 PID 5052 wrote to memory of 2524 5052 19310dc6efef69446d55c4e3c91057ffa7645f4bf705a81be0b2069487952176.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\19310dc6efef69446d55c4e3c91057ffa7645f4bf705a81be0b2069487952176.exe"C:\Users\Admin\AppData\Local\Temp\19310dc6efef69446d55c4e3c91057ffa7645f4bf705a81be0b2069487952176.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5052 -
C:\Users\Admin\AppData\Local\Temp\szgfw.exe"C:\Users\Admin\AppData\Local\Temp\szgfw.exe"2⤵
- Executes dropped EXE
PID:2524
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:1756
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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:4936