Analysis
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max time kernel
128s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
13-02-2022 10:07
Static task
static1
Behavioral task
behavioral1
Sample
36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exe
Resource
win7-en-20211208
General
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Target
36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exe
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Size
2.8MB
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MD5
805b3ae4a0c89285f89c4bc51a5f6228
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SHA1
269615cb21b20e743ea8a2eb2db85d613f5a6f3c
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SHA256
36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2
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SHA512
27b4fc348885283259f96319475620a0b3bfd879f4d52f2b6eed3ff91e392857ec1846cc6287de8642d8fe70e52ad220483b7b45485dd702a46519cbde2f1188
Malware Config
Signatures
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suricata: ET MALWARE Observed Win32/CollectorStealer User-Agent M2
suricata: ET MALWARE Observed Win32/CollectorStealer User-Agent M2
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation 36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Processes:
resource yara_rule behavioral2/memory/4868-130-0x0000000000D60000-0x00000000012C6000-memory.dmp themida behavioral2/memory/4868-131-0x0000000000D60000-0x00000000012C6000-memory.dmp themida behavioral2/memory/4868-132-0x0000000000D60000-0x00000000012C6000-memory.dmp themida behavioral2/memory/4868-133-0x0000000000D60000-0x00000000012C6000-memory.dmp themida -
Processes:
36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exepid process 4868 36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exe -
Drops file in Windows directory 8 IoCs
Processes:
svchost.exeTiWorker.exedescription ioc process 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 File opened for modification C:\Windows\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exepid process 4868 36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exe 4868 36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
svchost.exeTiWorker.exedescription pid process Token: SeShutdownPrivilege 1408 svchost.exe Token: SeCreatePagefilePrivilege 1408 svchost.exe Token: SeShutdownPrivilege 1408 svchost.exe Token: SeCreatePagefilePrivilege 1408 svchost.exe Token: SeShutdownPrivilege 1408 svchost.exe Token: SeCreatePagefilePrivilege 1408 svchost.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe Token: SeRestorePrivilege 2372 TiWorker.exe Token: SeSecurityPrivilege 2372 TiWorker.exe Token: SeBackupPrivilege 2372 TiWorker.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exedescription pid process target process PID 4868 wrote to memory of 1824 4868 36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exe cmd.exe PID 4868 wrote to memory of 1824 4868 36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exe cmd.exe PID 4868 wrote to memory of 1824 4868 36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exe"C:\Users\Admin\AppData\Local\Temp\36f9a4f21bafa4ade632e47d1f72d31eb0b41d647549f6f455c1ccca9242cde2.exe"1⤵
- Checks BIOS information in registry
- Checks computer location settings
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4868 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\36F9A4~1.EXE >> NUL2⤵PID:1824
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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:1408
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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:2372