92853b65366d780bd7e3a7140cb645059f8faad7c70eacc8115a171baf11093f

Analysis

max time kernel
450s
max time network
457s
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 EN.pdf
Size

995KB
MD5

6238a15bf562683853267e76856f36d1
SHA1

8e5b00ee6cf52d0c76515d9bf761d8d6dc2977ed
SHA256

853142f3ff17c2972af13cd2d98c011f0add3dc40c1fe8d00c3efe23f6d9ea5f
SHA512

53e6393b423da495d00bff7f37a103b9a7e26b05b343e82c9ba991306386672089696160f23967bc3f8002495e4cde7d94244bf95213300a61a019f88f0f318f
SSDEEP

24576:FJixsmvIbjgbuMAk1XyKHY6mjJCgzdP5E5V:FkBvIbE6MAI3HuJXzdP5CV

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-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3516	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe
3516	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3516 wrote to memory of 2136	3516	AcroRd32.exe	86
PID 3516 wrote to memory of 2136	3516	AcroRd32.exe	86
PID 3516 wrote to memory of 2136	3516	AcroRd32.exe	86
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 3648	2136	RdrCEF.exe	87
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	RdrCEF.exe	88
PID 2136 wrote to memory of 1656	2136	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\Documents\Net Viewer User Guide EN.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:3516
- 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:2136
- - 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=F3CC56D77716EB6254C8DF631F1C1C4C --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3648
- - 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=84A6E247E06DF90F9FDEE58E9F6AF5A9 --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=84A6E247E06DF90F9FDEE58E9F6AF5A9 --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1656
- - 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=7031867F7B7EED47FD78DA6806312418 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3460
- - 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=446868E934D51B0CDE2F4C9ACF228D24 --mojo-platform-channel-handle=2436 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1420
- - 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=81D0E0C09333F38F3DA62697D73006DB --mojo-platform-channel-handle=2444 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3424
- - 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=9F8F317EDD1C94C8D2FC40C1E67A9D6C --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=9F8F317EDD1C94C8D2FC40C1E67A9D6C --renderer-client-id=7 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1464

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3436

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

Loading Replay Monitor...

Downloads

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

Filesize
64KB

MD5
32da59c2a5cce5ae81ba1118f141c22b

SHA1
d48b49116297133e05e8cbe832344649433aaed7

SHA256
62f5fd665b7aa1270b778f01ae427de1beccb07f19c27f1d17e83a7c3dc40d6d

SHA512
1926281b1c1a7addea50165cc7e02736c9f72f9651ead0ae53d26242c2399a6df93225dfe05f1e142cd5eb85ace55e42aaf38f99f4f643617c4290f90ac275ea

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