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Analysis
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max time kernel
140s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
19/09/2023, 13:33
Static task
static1
Behavioral task
behavioral1
Sample
PO-4501226854_WJO-001.xlam
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
PO-4501226854_WJO-001.xlam
Resource
win10v2004-20230915-en
General
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Target
PO-4501226854_WJO-001.xlam
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Size
620KB
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MD5
a7be43b6c0c07ca83df1b743382063a2
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SHA1
857f903eba27814a5c604d90fd1cf24bbfa33860
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SHA256
6eb428de0c5a04bb2c6cb00b171fa424331ba11fc1f9784380f73df5b9d324a5
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SHA512
f745ab56d21df2f27ec314c1e0ac9e4653a738c4b340fdec5dec0de0f5ec1a5fe19c55471b05e9871e11ef35ab8f5d732ff3045baf2d9678f87f9b97d85489df
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SSDEEP
12288:zBbXAU6ZPspN/nNi21Q8dFAHkQRMG3DmRBVvHB1CElaliRHEM+QaNgJ:zBENPsHNDFVQRMG3DSBVvh1zaliRkMqM
Malware Config
Signatures
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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 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3984 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3984 EXCEL.EXE 3984 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3984 EXCEL.EXE 3984 EXCEL.EXE 3984 EXCEL.EXE 3984 EXCEL.EXE 3984 EXCEL.EXE 3984 EXCEL.EXE 3984 EXCEL.EXE 3984 EXCEL.EXE -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\PO-4501226854_WJO-001.xlam"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:3984