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Analysis
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max time kernel
145s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
02/02/2024, 03:39
Behavioral task
behavioral1
Sample
8874e776794c9fd0a976d4cfd47bc7b7.pdf
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
8874e776794c9fd0a976d4cfd47bc7b7.pdf
Resource
win10v2004-20231222-en
General
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Target
8874e776794c9fd0a976d4cfd47bc7b7.pdf
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Size
45KB
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MD5
8874e776794c9fd0a976d4cfd47bc7b7
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SHA1
a867248b5af56ad1ccb1ccbf4b978cbe122c945f
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SHA256
fc244ff81d4695498ba57bcbc8573a1606b0d2677701f63abf37ce7dd5ba5bb9
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SHA512
9a6e7fda2cc9d11b729b574966ee74db8d246e4467c1d5e40377a95372abca130cc728983c45bcccced5346158ced3779e88d00f99564ff6966326af0c41d52e
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SSDEEP
768:q/6v0FVusArP34E4rG8a1LhzqxiyQl66fU2WxUZxHw4BGJ6L1sVH6z:VEE4/aNYxpMUzcHcJzIz
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-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION AcroRd32.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
pid Process 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3832 AcroRd32.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe 3832 AcroRd32.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 3832 wrote to memory of 4464 3832 AcroRd32.exe 92 PID 3832 wrote to memory of 4464 3832 AcroRd32.exe 92 PID 3832 wrote to memory of 4464 3832 AcroRd32.exe 92 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3412 4464 RdrCEF.exe 93 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94 PID 4464 wrote to memory of 3812 4464 RdrCEF.exe 94
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\8874e776794c9fd0a976d4cfd47bc7b7.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:3832 -
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:4464 -
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=DFDB1B689AE5BF213E4BA1D5A1AF61DC --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:3412
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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=38249C3F791D52911C3CD650E5E10003 --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=38249C3F791D52911C3CD650E5E10003 --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:13⤵PID:3812
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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=198173EED75CE48EE61376435BB5C093 --mojo-platform-channel-handle=2172 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:5000
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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=2889EB4E9D23DD235A26B9ECE910194C --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=2889EB4E9D23DD235A26B9ECE910194C --renderer-client-id=5 --mojo-platform-channel-handle=2200 --allow-no-sandbox-job /prefetch:13⤵PID:1180
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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=8A2F8F1588ADE4E0F2C5BFB0915EA467 --mojo-platform-channel-handle=2560 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:3108
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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=86296B1C14454157F0C3312BC4BEECE9 --mojo-platform-channel-handle=2256 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:23⤵PID:1660
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C:\Windows\System32\CompPkgSrv.exeC:\Windows\System32\CompPkgSrv.exe -Embedding1⤵PID:3204
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
64KB
MD5d1e2a05d0ab41c692f754cb78c4d0088
SHA1039308e82ff5b0c4b8b05f7e101ed340df77547c
SHA256ad929cc13b74180973946ad2342519b5b525cf7bacddc13d0c7c8467ebf94019
SHA512d390251bd1071035989ca7d0ef43761ac8ed1f40f2ac8931906d0cb78a6ea8a0c688f68a818d5b6b288c2ab630b99de9207ac7e6fb11b2e5c93e5dea0cc7266b
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Filesize
36KB
MD5b30d3becc8731792523d599d949e63f5
SHA119350257e42d7aee17fb3bf139a9d3adb330fad4
SHA256b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3
SHA512523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e
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Filesize
56KB
MD5752a1f26b18748311b691c7d8fc20633
SHA1c1f8e83eebc1cc1e9b88c773338eb09ff82ab862
SHA256111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131
SHA512a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5