Analysis
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max time kernel
135s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
19/05/2023, 01:37
Static task
static1
Behavioral task
behavioral1
Sample
41d4baaa5dc08a1833322188545f86f4c3924cacce6c4fba9113826075cfb739.xlsx
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
41d4baaa5dc08a1833322188545f86f4c3924cacce6c4fba9113826075cfb739.xlsx
Resource
win10v2004-20230220-en
General
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Target
41d4baaa5dc08a1833322188545f86f4c3924cacce6c4fba9113826075cfb739.xlsx
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Size
829KB
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MD5
7a839bb53cfd63dfd37b2080b0b1caa2
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SHA1
e1b2d967ce592b550d525464f98de56a25faa651
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SHA256
41d4baaa5dc08a1833322188545f86f4c3924cacce6c4fba9113826075cfb739
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SHA512
52f29d9ac18fb88c32fb811745047473a3a69f7a779557ab9242139dcd56e26fbb214e05569a1960d6fd79917d96e8c53532b4dd7cfc037286275aef8b34c7f1
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SSDEEP
24576:cmvZL5a1FrLfnk8VNLdvfMl4/uAqcXZQp:cm+jLnkEclu+fp
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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 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 3724 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3724 EXCEL.EXE 3724 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3724 EXCEL.EXE 3724 EXCEL.EXE 3724 EXCEL.EXE 3724 EXCEL.EXE 3724 EXCEL.EXE 3724 EXCEL.EXE 3724 EXCEL.EXE 3724 EXCEL.EXE 3724 EXCEL.EXE 3724 EXCEL.EXE 3724 EXCEL.EXE 3724 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\41d4baaa5dc08a1833322188545f86f4c3924cacce6c4fba9113826075cfb739.xlsx"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:3724