Analysis
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max time kernel
209s -
max time network
222s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
31/12/2023, 06:30
Behavioral task
behavioral1
Sample
2bbf76cb5ef44bf690872e0486724903.pdf
Resource
win7-20231215-en
2 signatures
150 seconds
Behavioral task
behavioral2
Sample
2bbf76cb5ef44bf690872e0486724903.pdf
Resource
win10v2004-20231215-en
5 signatures
150 seconds
General
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Target
2bbf76cb5ef44bf690872e0486724903.pdf
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Size
44KB
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MD5
2bbf76cb5ef44bf690872e0486724903
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SHA1
860015424f9ace614e2d61d1fcf44af2f071a5e3
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SHA256
504e7b9d1ad0cffec0148e9ba82fc5566a25631da17147d7ba0ade53ab752ba4
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SHA512
0a2e6901a1c09e929470fb2dd0ff09ff950fdf8844ff1e632464ed2f57c6081d8a42bcbb3738a1e703682e0660e7c1b4e2077393a7bf30334d2f728f3604d8ec
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SSDEEP
768:zgGzpD/Q3RDrqIC76TazRiAobXd9gHzAvyGJi1MWFMn97hjPPNXlPWYSfC:MGFbaqIs6TKRiAoh9AzoyGCMWuphLPJH
Score
1/10
Malware Config
Signatures
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 AcroRd32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz AcroRd32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2440 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 2440 AcroRd32.exe 2440 AcroRd32.exe 2440 AcroRd32.exe 2440 AcroRd32.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2440 wrote to memory of 4296 2440 AcroRd32.exe 99 PID 2440 wrote to memory of 4296 2440 AcroRd32.exe 99 PID 2440 wrote to memory of 4296 2440 AcroRd32.exe 99 PID 2440 wrote to memory of 4828 2440 AcroRd32.exe 106 PID 2440 wrote to memory of 4828 2440 AcroRd32.exe 106 PID 2440 wrote to memory of 4828 2440 AcroRd32.exe 106
Processes
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C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\2bbf76cb5ef44bf690872e0486724903.pdf"1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2440 -
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=165140432⤵PID:4296
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C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --backgroundcolor=165140432⤵PID:4828
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