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Analysis
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max time kernel
150s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
25/12/2023, 01:20
Static task
static1
Behavioral task
behavioral1
Sample
2009faa4eff7371b148594eb3687da37.doc
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2009faa4eff7371b148594eb3687da37.doc
Resource
win10v2004-20231215-en
Behavioral task
behavioral3
Sample
decrypted.xlsx
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
decrypted.xlsx
Resource
win10v2004-20231215-en
General
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Target
decrypted.xlsx
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Size
1.2MB
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MD5
4c942f8f3b2d89699d7d266294cbbc3a
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SHA1
7fbd824cf010ce2e0e0dff8a67e0f5ab1a6595e4
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SHA256
2c6eccc057782d6e6b390e306e50056683553540d34e7a187a4c407944618efc
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SHA512
eefa6131e31534aace66e0d91283be16137b0153b53e9d529359b501d8fa553840edfd89a2b9b43b54f3c042d8494d816edb18c43b37888eb6e54440a3f44987
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SSDEEP
24576:S0uqq0ya++dvdXXXXXXXXXXXXUXXXXXXXXXXXXXXXXHbNQePz+ikEc9IMA1zguMz:oNa++YbN5b+ikfN2sFHeTuLOg3np
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\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 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 348 EXCEL.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 348 EXCEL.EXE 348 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 348 EXCEL.EXE 348 EXCEL.EXE 348 EXCEL.EXE 348 EXCEL.EXE 348 EXCEL.EXE 348 EXCEL.EXE 348 EXCEL.EXE 348 EXCEL.EXE 348 EXCEL.EXE 348 EXCEL.EXE 348 EXCEL.EXE 348 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\decrypted.xlsx"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:348