Analysis
- max time kernel
182s - max time network
192s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
08/02/2022, 00:17
Static task
static1
Behavioral task
behavioral1
Sample
tmpxpktuos8.xls
Resource
win7-en-20211208
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
tmpxpktuos8.xls
Resource
win10v2004-en-20220113
0 signatures
0 seconds
General
- Target tmpxpktuos8.xls
- Size 129KB
- Sample220208-ak2saabagj
- SHA256 14ec684c8a2e63fc85ba3093d50a498020cdfbfe544f938e90c8f12deb73c372
- MD5 0e71e8b8da5a10609392263b0f74f026
- SHA1 1f6b8ba96bc1faae9eb7cac1a55011cef94818e2
- SHA512 d4ebeb7d68d416ae907d22ed7284af4b6f1436fdf2427de8344e7e5764b9e97cff0b655b8a77fffd1c433dd3082837b061fadb8b33046c6f8ace179ba1d7cb21
- MD5 SHA1 SHA512
Score
4/10
Malware Config
Signatures
- Drops file in Windows directory 6 IoCs
description ioc Process File opened for modification C:\Windows\SoftwareDistribution\ReportingEvents.log svchost.exe 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 - Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE - Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE - Modifies data under HKEY_USERS 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections svchost.exe - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2564 EXCEL.EXE - Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeShutdownPrivilege 1896 svchost.exe Token: SeCreatePagefilePrivilege 1896 svchost.exe Token: SeShutdownPrivilege 1896 svchost.exe Token: SeCreatePagefilePrivilege 1896 svchost.exe Token: SeShutdownPrivilege 1896 svchost.exe Token: SeCreatePagefilePrivilege 1896 svchost.exe - Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 2564 EXCEL.EXE 2564 EXCEL.EXE 2564 EXCEL.EXE 2564 EXCEL.EXE 2564 EXCEL.EXE 2564 EXCEL.EXE 2564 EXCEL.EXE 2564 EXCEL.EXE
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\tmpxpktuos8.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2564
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p -s BITS1⤵
- Modifies data under HKEY_USERS
PID:860
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:1896