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Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
30/12/2023, 20:55
Static task
static1
Behavioral task
behavioral1
Sample
1c4b02843e1718f0ccaa3efc0b96d787.doc
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
1c4b02843e1718f0ccaa3efc0b96d787.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
1.1MB
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MD5
074f9f3053c1acd250159a8718589d59
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SHA1
15a3a43859f2aa485d3663e7ff6e59a66514aa5f
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SHA256
ebfd6c7524067d4c16a6801dc498621acb4a116e67057915a8b7e0f042bd261d
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SHA512
c9d31ba3155f79fe8e84813cd8b7a0960d3fc2b31bb611d42581b8412bcf3049d0b2430c5e288f59c15281b0a87647149e52d1a497c1f32c67041c83e5d1445f
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SSDEEP
24576:TphLKNTDt6hX8CPUdKeEkZU4oV/2rTyWOe94nbHvdXXXXXXXXXXXXUXXXXXXXXX5:bETxms+cdZULV/2bOHnQ
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\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4144 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 4144 EXCEL.EXE 4144 EXCEL.EXE 4144 EXCEL.EXE 4144 EXCEL.EXE 4144 EXCEL.EXE 4144 EXCEL.EXE 4144 EXCEL.EXE 4144 EXCEL.EXE 4144 EXCEL.EXE 4144 EXCEL.EXE 4144 EXCEL.EXE 4144 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 SetWindowsHookEx
PID:4144