Analysis
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max time kernel
160s -
max time network
168s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
04/01/2024, 08:36
Behavioral task
behavioral1
Sample
4062abd4f52fdf5eba2ae6ac45491cfe.pdf
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
4062abd4f52fdf5eba2ae6ac45491cfe.pdf
Resource
win10v2004-20231215-en
General
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Target
4062abd4f52fdf5eba2ae6ac45491cfe.pdf
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Size
43KB
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MD5
4062abd4f52fdf5eba2ae6ac45491cfe
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SHA1
2bc48f6895eae21e1a033316efc605038e662d33
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SHA256
7d390ef8f6e412b51f3627e635819abb4a3518d136c45dba1d7594f4613c6263
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SHA512
98b47ad5c25d4f03f6a43fa2b3422f99c083bca8807bb6aab3a5dcf2fbca0c4054913d454b08a5892aa77188b34fff39f0461934499b8c74fc60ace8ab383f9e
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SSDEEP
768:rILxnpVnw1D7V0SFrzyi56yJwgashAtqDRsv+C9Y95BARZ3a4wu7I5ycigR:clnpVnw1Dh0S5uitigPblsv+J95Bk3aP
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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3264 AcroRd32.exe 3264 AcroRd32.exe 3264 AcroRd32.exe 3264 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3264 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 3264 AcroRd32.exe 3264 AcroRd32.exe 3264 AcroRd32.exe 3264 AcroRd32.exe -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 3264 wrote to memory of 2776 3264 AcroRd32.exe 102 PID 3264 wrote to memory of 2776 3264 AcroRd32.exe 102 PID 3264 wrote to memory of 2776 3264 AcroRd32.exe 102 PID 3264 wrote to memory of 3296 3264 AcroRd32.exe 103 PID 3264 wrote to memory of 3296 3264 AcroRd32.exe 103 PID 3264 wrote to memory of 3296 3264 AcroRd32.exe 103 PID 3264 wrote to memory of 3920 3264 AcroRd32.exe 106 PID 3264 wrote to memory of 3920 3264 AcroRd32.exe 106 PID 3264 wrote to memory of 3920 3264 AcroRd32.exe 106 PID 3264 wrote to memory of 3704 3264 AcroRd32.exe 109 PID 3264 wrote to memory of 3704 3264 AcroRd32.exe 109 PID 3264 wrote to memory of 3704 3264 AcroRd32.exe 109 PID 3264 wrote to memory of 3736 3264 AcroRd32.exe 111 PID 3264 wrote to memory of 3736 3264 AcroRd32.exe 111 PID 3264 wrote to memory of 3736 3264 AcroRd32.exe 111 PID 3264 wrote to memory of 4384 3264 AcroRd32.exe 112 PID 3264 wrote to memory of 4384 3264 AcroRd32.exe 112 PID 3264 wrote to memory of 4384 3264 AcroRd32.exe 112
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\4062abd4f52fdf5eba2ae6ac45491cfe.pdf"1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3264 -
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:2776
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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:3296
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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:3920
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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:3704
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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:3736
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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:4384
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
36KB
MD5b30d3becc8731792523d599d949e63f5
SHA119350257e42d7aee17fb3bf139a9d3adb330fad4
SHA256b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
SHA512523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
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Filesize
56KB
MD5752a1f26b18748311b691c7d8fc20633
SHA1c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA256111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
SHA512a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5