Analysis
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max time kernel
142s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
13-03-2024 01:37
Behavioral task
behavioral1
Sample
c4a420c3e87352cb88d0b277944be005.pdf
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
c4a420c3e87352cb88d0b277944be005.pdf
Resource
win10v2004-20240226-en
General
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Target
c4a420c3e87352cb88d0b277944be005.pdf
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Size
93KB
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MD5
c4a420c3e87352cb88d0b277944be005
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SHA1
fabf30e62acc04ca70a0ee3c9d6fb30f7b5f7288
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SHA256
d52eb8810fa012c86fcab9504c49b89e62fca9d3eb5d10dc765bd55b540f35c1
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SHA512
f9c9fc85ce809b9c5560f4a53e390c187cfe7a85adbb151ae0eba3ccd3fb61100d36f6b0e55f73f083f8a35e3f37478dfe866ec041d5b76658b43d5f166e65d9
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SSDEEP
1536:s+T7Co78QkkmoLwA4/sNTNbSylYNbu10koNLKXf+5CDO77KjZxYJ1GWQRiTuWep9:3TB78FoLwA40NhSIgba0JNLo+5YOiZm4
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-1-5-21-2727153400-192325109-1870347593-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
pid Process 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4164 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe 4164 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 4164 wrote to memory of 4540 4164 AcroRd32.exe 90 PID 4164 wrote to memory of 4540 4164 AcroRd32.exe 90 PID 4164 wrote to memory of 4540 4164 AcroRd32.exe 90 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 3296 4540 RdrCEF.exe 91 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92 PID 4540 wrote to memory of 1652 4540 RdrCEF.exe 92
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\c4a420c3e87352cb88d0b277944be005.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:4164 -
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⤵
- Suspicious use of WriteProcessMemory
PID:4540 -
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=56B52A89C431690A6032B4C88A08E338 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵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" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=2C85D544D307B0641A8307660A2C0901 --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=2C85D544D307B0641A8307660A2C0901 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:13⤵PID:1652
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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" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=AAFB466B8A9D04788CCA530857E05835 --mojo-platform-channel-handle=2336 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:5064
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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" --type=renderer --disable-browser-side-navigation --disable-gpu-compositing --service-pipe-token=10BD6555B5069E532A0AC9226CCCCFAC --lang=en-US --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --enable-pinch --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --enable-gpu-async-worker-context --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;0,18,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;1,18,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;2,18,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;3,18,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553;4,18,3553;5,0,3553;5,1,3553;5,2,3553;5,3,3553;5,4,3553;5,5,3553;5,6,3553;5,7,3553;5,8,3553;5,9,3553;5,10,3553;5,11,3553;5,12,3553;5,13,3553;5,14,3553;5,15,3553;5,16,3553;5,17,3553;5,18,3553;6,0,3553;6,1,3553;6,2,3553;6,3,3553;6,4,3553;6,5,3553;6,6,3553;6,7,3553;6,8,3553;6,9,3553;6,10,3553;6,11,3553;6,12,3553;6,13,3553;6,14,3553;6,15,3553;6,16,3553;6,17,3553;6,18,3553 --disable-accelerated-video-decode --service-request-channel-token=10BD6555B5069E532A0AC9226CCCCFAC --renderer-client-id=5 --mojo-platform-channel-handle=2436 --allow-no-sandbox-job /prefetch:13⤵PID:3368
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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" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=9538701293FBE6311C9217B2C74BFD8E --mojo-platform-channel-handle=2548 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:3396
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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" --type=gpu-process --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --gpu-preferences=GAAAAAAAAAAAB4AAAQAAAAAAAAAAAGAA --use-gl=swiftshader-webgl --gpu-vendor-id=0x1234 --gpu-device-id=0x1111 --gpu-driver-vendor="Google Inc." --gpu-driver-version=3.3.0.2 --gpu-driver-date=2017/04/07 --disable-pack-loading --lang=en-US --log-file="C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\debug.log" --log-severity=disable --product-version="ReaderServices/19.10.20064 Chrome/64.0.3282.119" --service-request-channel-token=05F46EA6CEC00E49D11965F78FFD45E8 --mojo-platform-channel-handle=2328 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:4460
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:4732
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
64KB
MD58edf091182e57dd0a39cf4b0e41c014a
SHA188d970faadb0975a0c872af3d2b1922bd1fd8d6e
SHA256b165a5e4cb166cae146c2cf9ff44b76f49a41910257d260a7e8557b620255844
SHA512d5003e09218893134587ef0cda665ee678338e4736ab50917b7b5ecdde6dda9541ea27dc1fbf60e3746cff10b3c39612e6f05c19219bf2e2441f5f11a87fff28
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Filesize
36KB
MD5b30d3becc8731792523d599d949e63f5
SHA119350257e42d7aee17fb3bf139a9d3adb330fad4
SHA256b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
SHA512523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
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Filesize
56KB
MD5752a1f26b18748311b691c7d8fc20633
SHA1c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA256111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
SHA512a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5