92853b65366d780bd7e3a7140cb645059f8faad7c70eacc8115a171baf11093f

Analysis

max time kernel
590s
max time network
490s
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 NL.pdf
Size

589KB
MD5

fb6cef26627227f08754d565083d8e3d
SHA1

d9df1f514bb5d5da77edda28405a89c17504cbea
SHA256

0829ec5057fcde4fd221db3e58166dbe66ba8b7242fe74b81091344940aa10a9
SHA512

2d6cee08c8c7019a7cfa843c26f83b1dbc860c3fb37ecc86ec6f6f3d1af3f7e375d471655a60c1b9d3f26595c64450e47907c191b650b6641408cdc57977c0cd
SSDEEP

12288:QpEah25wWqmmYR5pdUj82sK2KvymCqIQWY0H9/A:Qpn25w5mP3pSLs3m9rWXd4

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
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3092	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe
3092	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3092 wrote to memory of 2116	3092	AcroRd32.exe	87
PID 3092 wrote to memory of 2116	3092	AcroRd32.exe	87
PID 3092 wrote to memory of 2116	3092	AcroRd32.exe	87
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 4996	2116	RdrCEF.exe	88
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	RdrCEF.exe	89
PID 2116 wrote to memory of 3664	2116	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 NL.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:3092
- 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:2116
- - 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=961E1C895203C2F7A64FBDB5D719D3D9 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4996
- - 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=DE03D2F4D16F90BE2C43FD0AA5E7F79D --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=DE03D2F4D16F90BE2C43FD0AA5E7F79D --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3664
- - 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=B2EB46B95A87162A3D2CEEBACECC8D84 --mojo-platform-channel-handle=2340 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:800
- - 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=A980C08608D7FD832E99D1DE24ECD7AA --mojo-platform-channel-handle=2332 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2248
- - 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=B14EFA87A4C34B009AEDEF50908BA6F5 --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=B14EFA87A4C34B009AEDEF50908BA6F5 --renderer-client-id=6 --mojo-platform-channel-handle=2520 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4292
- - 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=F18FED8E884DE606C5E4A04706348875 --mojo-platform-channel-handle=2680 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2184

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:5024

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
5ad372cb7bf32061b08a8ae375d86b1e

SHA1
ea6ac1194430ac304bc7454dd4bfe25f9556ebe4

SHA256
4142598ca559c0ac00ebc05f18464b9cb296424b50080056c80d40dde6be73ad

SHA512
62079a80465092c43946d0f0c2ad4a430263fd3fba742c3055e5f4886fdebbe208b2cd11c9a303e785b70fda7b1fddf2f7de1348bb8913e4b0514cd08988244a

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
memory/3092-121-0x000000000BEA0000-0x000000000C14B000-memory.dmp

Filesize
2.7MB

Download