Analysis
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max time kernel
144s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
07/03/2023, 13:01
Static task
static1
Behavioral task
behavioral1
Sample
confirmaci_F3n_d.xls.xlsx
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
confirmaci_F3n_d.xls.xlsx
Resource
win10v2004-20230220-en
General
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Target
confirmaci_F3n_d.xls.xlsx
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Size
878KB
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MD5
a1527b5a30d24c1f6f97b913de83b2a0
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SHA1
b96e324b9cad528482253d1efee6a64d810bd4ad
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SHA256
1ce8aaabd9fe827afc2b118a6775bd198f9706604379e35918eac50f51e0d855
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SHA512
2360161850eb84862db89dfcacedbf9f091db88998eacea2b07f0a2c48dcfd326687c248c1c488a7537639752f1f7154638c97a5481073ca2c77a5b5f90971d2
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SSDEEP
24576:/mv6t4ct042sM4lDY+rNMHcVK1N+vdhIhayfT/1zZ:/mvcuSlDBts1N26oy79Z
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 3944 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 3944 EXCEL.EXE 3944 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 3944 EXCEL.EXE 3944 EXCEL.EXE 3944 EXCEL.EXE 3944 EXCEL.EXE 3944 EXCEL.EXE 3944 EXCEL.EXE 3944 EXCEL.EXE 3944 EXCEL.EXE 3944 EXCEL.EXE 3944 EXCEL.EXE 3944 EXCEL.EXE 3944 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\confirmaci_F3n_d.xls.xlsx"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:3944