92853b65366d780bd7e3a7140cb645059f8faad7c70eacc8115a171baf11093f

Analysis

max time kernel
437s
max time network
450s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
03/06/2024, 18:16

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General

Target

Documents/Net Viewer User Guide ES.pdf
Size

600KB
MD5

f46bbafcb38dd3654ef38171bf111861
SHA1

b6bbeef0e70c0072851d288982e7c972fa6a4df5
SHA256

17dc99e68403355f8ae42f8198eb049733c6f903d519375d8acc4adfb0e54144
SHA512

367453c09c532820b1833350b59eacd408fa1f5e5eda06757778cdd6d86f7edb56bfacf9cd9a2e79658897098d062badb3ea58eb98914668ca1e5d9eccca6385
SSDEEP

12288:xFSAPmIhVoRJEz7TDLRcxdDxZh9mlhYK2urILG:CAP00zHDlcHDxj9luEG

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-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2192	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe
2192	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 1848	2192	AcroRd32.exe	87
PID 2192 wrote to memory of 1848	2192	AcroRd32.exe	87
PID 2192 wrote to memory of 1848	2192	AcroRd32.exe	87
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4864	1848	RdrCEF.exe	88
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89
PID 1848 wrote to memory of 4872	1848	RdrCEF.exe	89

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\Documents\Net Viewer User Guide ES.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:2192
- 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:1848
- - 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=DB7D5185BCD4DBFCF412037F303B0727 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4864
- - 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=9CFDCC301E65C050A8F26CCBD9A90E43 --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=9CFDCC301E65C050A8F26CCBD9A90E43 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4872
- - 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=7BCFEBE2513DF1CF9EFAEAE511BCDA55 --mojo-platform-channel-handle=2304 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1064
- - 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=4AD5B365ADE9CB188FEC8593AF0AC433 --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=4AD5B365ADE9CB188FEC8593AF0AC433 --renderer-client-id=5 --mojo-platform-channel-handle=2404 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4532
- - 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=8976467AC40DCD660388DB28214EF5D4 --mojo-platform-channel-handle=2684 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1132
- - 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=E3693162816ABC456AC97D179FABC801 --mojo-platform-channel-handle=2812 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4144

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
64KB

MD5
3574a275d94d2fbb7c50b80b341f9eb9

SHA1
90ff16cd43078f5741e505be75fa5f1819cf52ad

SHA256
5bd52400ee2c6825e912b867a44892964f6d54230a5e9cba29c49adcf31df072

SHA512
7f95c8a57be9d7045813a84ee4085db5a94d84d1967a41979372015fd4a73985c1f51b62c9be040c31e0ba3dab7f44132cd48ef54e28e949909e0ea2cc88b0ab

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit