Analysis
- max time kernel
162s - max time network
168s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
11/02/2022, 07:19
Static task
static1
Behavioral task
behavioral1
Sample
RFQ10037800.pdf.exe
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
RFQ10037800.pdf.exe
Resource
win10v2004-en-20220113
windows10-2004_x64
0 signatures
0 seconds
General
- Target RFQ10037800.pdf.exe
- Size 784KB
- Sample220211-h5jffaeabk
- SHA256 31149772b5eff1ebb9326af6a2ee4e4007dd6c6ad30bef239dc7bf50cd1d219f
- MD5 fd399fe4a7a229aa3cdafc194ec90587
- SHA1 2db5195bed03c3a19d8cb3d368ed6a4454bb85e8
- SHA512 f6451ba9405cf780f3b386528f9ef4037d8b840d0c18bc49234d98093db3733851df2b715b4bf408f87f8f9e38013cdd90432b97cb2b9ed5e61ab926cf62ae3a
- MD5 SHA1 SHA512
Score
7/10
Malware Config
Signatures
- 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 RFQ10037800.pdf.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.
- Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 2592 svchost.exe Token: SeCreatePagefilePrivilege 2592 svchost.exe Token: SeShutdownPrivilege 2592 svchost.exe Token: SeCreatePagefilePrivilege 2592 svchost.exe Token: SeShutdownPrivilege 2592 svchost.exe Token: SeCreatePagefilePrivilege 2592 svchost.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe Token: SeRestorePrivilege 4628 TiWorker.exe Token: SeSecurityPrivilege 4628 TiWorker.exe Token: SeBackupPrivilege 4628 TiWorker.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\RFQ10037800.pdf.exe"C:\Users\Admin\AppData\Local\Temp\RFQ10037800.pdf.exe"1⤵
- Checks computer location settings
PID:4504
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2592
-
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:4628