Analysis
- max time kernel
164s - max time network
190s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
10/02/2022, 03:20
Static task
static1
Behavioral task
behavioral1
Sample
zoi.xlsx
Resource
win7-en-20211208
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
zoi.xlsx
Resource
win10v2004-en-20220113
0 signatures
0 seconds
General
- Target zoi.xlsx
- Size 187KB
- Sample220210-dvsh5scfc8
- SHA256 500ba5c5826cc1358129c8d4d5e1548d37521f95243760772cc87a6f342da2ac
- MD5 af1b4a967b746a38d3ee72c6705e0961
- SHA1 f1e8b0d8d2d43cfc1dc2a1b66ef8dcf4b44d95ba
- SHA512 a6a24b671bfed89bb16190a0582d1ee3b512ba325331ef0f6c6e1aa20629f0558d70c1ee7f5e6f141a59f38bf777ac8e55ac901bde06f590689e7376ea1ebab7
- 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\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\WindowsUpdate.log 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 opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE 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 - Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily 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 732 EXCEL.EXE - Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeShutdownPrivilege 2840 svchost.exe Token: SeCreatePagefilePrivilege 2840 svchost.exe Token: SeShutdownPrivilege 2840 svchost.exe Token: SeCreatePagefilePrivilege 2840 svchost.exe Token: SeShutdownPrivilege 2840 svchost.exe Token: SeCreatePagefilePrivilege 2840 svchost.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 732 EXCEL.EXE 732 EXCEL.EXE - Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 732 EXCEL.EXE 732 EXCEL.EXE 732 EXCEL.EXE 732 EXCEL.EXE 732 EXCEL.EXE 732 EXCEL.EXE 732 EXCEL.EXE 732 EXCEL.EXE 732 EXCEL.EXE 732 EXCEL.EXE 732 EXCEL.EXE 732 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\zoi.xlsx"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:732
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p -s BITS1⤵
- Modifies data under HKEY_USERS
PID:4276
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2840