eb813966621a14ba1a1157c568b00d21df3cf11ada06d95a3962e62bd99555f3

Analysis

max time kernel
112s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2023, 08:06

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General

Target

[KB11526] How to uninstall ClickShare Desktop app v4.3 massively.pdf
Size

80KB
MD5

fa4c7a4043d096f7ad2e8d3e08a0bc8e
SHA1

a844436a8d05339a7ba1a46a24101f7d8903b5dd
SHA256

d6bfc0d6829540780d63d1dc579c9872ecd56338b6bd28116d4cce0f712c32e6
SHA512

ffa0b5807efa8fbd18c5a5dfe5d56cec8109f3cf04ffba06900251652efd65dccb9ebc3632b193685e654adf964f9f53329fdfd31cc4a82711818a14358283f7
SSDEEP

1536:mzrV4J7Jo6YxhkLDx8SodCR6Li4NZIOakdubrJ0eaiePeJGsYF153KFxFB:6U7Jo6EkLd8So8If3O8PekhFaZB

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

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

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4788	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe
4788	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4788 wrote to memory of 1756	4788	AcroRd32.exe	84
PID 4788 wrote to memory of 1756	4788	AcroRd32.exe	84
PID 4788 wrote to memory of 1756	4788	AcroRd32.exe	84
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 772	1756	RdrCEF.exe	87
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88
PID 1756 wrote to memory of 4252	1756	RdrCEF.exe	88

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\[KB11526] How to uninstall ClickShare Desktop app v4.3 massively.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:4788
- 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=16514043
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1756
- - 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=186459559F4FA35C4E4919A76A547E8B --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:772
- - 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=DE5584E68D8C7D6B411A5268185E43D7 --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=1 --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=DE5584E68D8C7D6B411A5268185E43D7 --renderer-client-id=2 --mojo-platform-channel-handle=1768 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4252
- - 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=C1CEEABCE1126DBFFCA26DFE7F4C2A54 --mojo-platform-channel-handle=2328 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1504
- - 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=E9EF851EF60F4E4DEAADA551F979DD6B --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4992
- - 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=B6FFDB615F4492406A6C9C2CEAB449F4 --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=1 --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=B6FFDB615F4492406A6C9C2CEAB449F4 --renderer-client-id=6 --mojo-platform-channel-handle=1816 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1616
- - 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=F17B61DD899A3D6379BC03BD52DD4621 --mojo-platform-channel-handle=2472 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2456

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3096

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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