92853b65366d780bd7e3a7140cb645059f8faad7c70eacc8115a171baf11093f

Analysis

max time kernel
436s
max time network
442s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
03/06/2024, 18:16

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General

Target

Documents/Net Viewer User Guide FR.pdf
Size

612KB
MD5

26bcb1c0e63d59e28d849dc1be9914eb
SHA1

8f30123f06132f586435b7fb2c5cfac45489f2aa
SHA256

f93ac8bfce81a73c2832b70ac819be61b12014c90b1ce2c2d56d7e0adbe325fb
SHA512

adcea6cbfe221135ed2912d25295cd0f8b54e3e5b5f0e05197d590070e15bf3e60430a92839b107501ecf393f298b0367523775f18c51d9033ea4bbfcc00f8d8
SSDEEP

12288:umt26CegMeyrYIjpdwJ7tDPd3kL+F6ZhElDpr1RAAZeGzqE:RvuMesjpSJ3kL+Fehir1RAQ

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-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1000	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1000	AcroRd32.exe
1000	AcroRd32.exe
1000	AcroRd32.exe
1000	AcroRd32.exe
1000	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1000 wrote to memory of 1896	1000	AcroRd32.exe	85
PID 1000 wrote to memory of 1896	1000	AcroRd32.exe	85
PID 1000 wrote to memory of 1896	1000	AcroRd32.exe	85
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 3792	1896	RdrCEF.exe	86
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87
PID 1896 wrote to memory of 64	1896	RdrCEF.exe	87

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 FR.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1000
- 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:1896
- - 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=5726F16E20ECC3BE0E6DF64E8346FAF5 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3792
- - 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=81ECEA876007CC39BAF23DF9C9DF0DD9 --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=81ECEA876007CC39BAF23DF9C9DF0DD9 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:64
- - 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=1CD4EC3295DCB7D3D650B9DD0270F9CE --mojo-platform-channel-handle=2328 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1080
- - 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=64CFBB7BEFB996C3C6A68B548D5D09BF --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=64CFBB7BEFB996C3C6A68B548D5D09BF --renderer-client-id=5 --mojo-platform-channel-handle=2408 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3800
- - 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=027E88E8D83F7C594A8FACF7AF25BFA7 --mojo-platform-channel-handle=2824 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4060
- - 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=9F99CFEC1B79371CD03D47866DED4BAE --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3040

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
1418511fa3cfedff1828ab1bcbbc01c9

SHA1
5ed4282a927a815db8ec0940a65dac464cbb4bea

SHA256
be04c720a7d7ea7ea410cf96426bdf19e541bcaf7dad3133d75a359103cacf8c

SHA512
f6686b4d2648b888d84feca0f5a4f2a5e6a0ab8a62e9a888f517dd3701629da24b38b31f7ffe475f78fa56e9f852bb15840757ebe0937fcaf46a12a26c6109a6

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

Filesize
64KB

MD5
b89aa1c89633d3b3340273012201db53

SHA1
9895c6610e87f4b68d43e370bd4a43667d29120c

SHA256
60e31a7794812376efd48e29d7ff239d8914f83f8af33165ceed3258f547b616

SHA512
a7fb304289fa3836ed028983a25d301580b596b604fa3b95c3309c387afd0ddb38087770756a0556b094110f2dfc3c76250c8872c1d5f2a2df948819dbc9d8f7

Download Submit