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Analysis
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max time kernel
101s -
max time network
134s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
19/04/2023, 10:49
Static task
static1
Behavioral task
behavioral1
Sample
po#2023-0374.xlsx
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
po#2023-0374.xlsx
Resource
win10v2004-20230220-en
General
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Target
po#2023-0374.xlsx
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Size
692KB
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MD5
f9cf4f69ff7c5e8787b2f78a0647f616
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SHA1
1f4631f60aef212f5a106ad25b1ffebcd029b738
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SHA256
f7e087067adbb8d63af6b8bd751dee471f1fa059300f70358428199307b012dc
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SHA512
d4a4c970d5652a6db08160e0307996bd1f3303c48b9ca508fd099e6dd7929f900298ca789d4159fecab8a95ef43bab5dcf9c3b65844ece2db9543653a1c2218f
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SSDEEP
12288:iS4yTbZUD2doKGe5KasiR+tgTHJ01OEW7QqQv5Z7inRaeoLHBX5QnGP:AyTm6hQKUgbEW7LMsanLF
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 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 932 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 932 EXCEL.EXE 932 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 932 EXCEL.EXE 932 EXCEL.EXE 932 EXCEL.EXE 932 EXCEL.EXE 932 EXCEL.EXE 932 EXCEL.EXE 932 EXCEL.EXE 932 EXCEL.EXE 932 EXCEL.EXE 932 EXCEL.EXE 932 EXCEL.EXE 932 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#2023-0374.xlsx"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:932