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Analysis
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max time kernel
159s -
max time network
169s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
08/01/2024, 06:32
Behavioral task
behavioral1
Sample
4ab11339f4ffed59da6c520597418c94.pdf
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
4ab11339f4ffed59da6c520597418c94.pdf
Resource
win10v2004-20231215-en
General
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Target
4ab11339f4ffed59da6c520597418c94.pdf
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Size
88KB
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MD5
4ab11339f4ffed59da6c520597418c94
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SHA1
646d3a7d4811b6d404f126b133b25d6e2d15c22e
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SHA256
d02a4ab71036b2ab92af479764c3a8346533b4e913efd6b0aa905eeb0b056e7a
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SHA512
e18bc19d4ada1af65dc3a9e21c3691aea4dfc64c11d666a3421f047874464b7429aa7d218f9ef933cdb30a2ad5edba2d84d8a6cd23d74e9630dc0fb1a1cf2839
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SSDEEP
1536:nrCw5+6P12W1k2pH8gbQwA04FmJ+wqAfOKiRm1NWBZ26wxn4CW6pOu2o9Uk23:2At11pl8gbVAkPzfO7mc0n4vu2oGt
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 468 AcroRd32.exe 468 AcroRd32.exe 468 AcroRd32.exe 468 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 468 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 468 AcroRd32.exe 468 AcroRd32.exe 468 AcroRd32.exe 468 AcroRd32.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 468 wrote to memory of 2492 468 AcroRd32.exe 103 PID 468 wrote to memory of 2492 468 AcroRd32.exe 103 PID 468 wrote to memory of 2492 468 AcroRd32.exe 103 PID 468 wrote to memory of 4064 468 AcroRd32.exe 107 PID 468 wrote to memory of 4064 468 AcroRd32.exe 107 PID 468 wrote to memory of 4064 468 AcroRd32.exe 107 PID 468 wrote to memory of 1760 468 AcroRd32.exe 110 PID 468 wrote to memory of 1760 468 AcroRd32.exe 110 PID 468 wrote to memory of 1760 468 AcroRd32.exe 110 PID 468 wrote to memory of 2032 468 AcroRd32.exe 111 PID 468 wrote to memory of 2032 468 AcroRd32.exe 111 PID 468 wrote to memory of 2032 468 AcroRd32.exe 111 PID 468 wrote to memory of 4384 468 AcroRd32.exe 112 PID 468 wrote to memory of 4384 468 AcroRd32.exe 112 PID 468 wrote to memory of 4384 468 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\4ab11339f4ffed59da6c520597418c94.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:468 -
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:2492
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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:4064
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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:1760
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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:2032
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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