92853b65366d780bd7e3a7140cb645059f8faad7c70eacc8115a171baf11093f

Analysis

max time kernel
432s
max time network
437s
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 DE.pdf
Size

596KB
MD5

8d4fe34a5f49fca2fcf59fb34f48fafa
SHA1

2203287950c826eb4d2af2159d27bd05a2928079
SHA256

b52a7fffe5d4fafb7a5cfb30a38445598348c201cc65c7c98a551994e47d8cd3
SHA512

2469c7003e1ccaa81ecd781ad1697ec4bc18f21099d0841767c6a19b9c68febe3fbc45993fab71c137e7021f8aa3b6e8465e3e5120b952d2eee1566cf190a94a
SSDEEP

12288:ZopSP1BXPV8dBQ/bFR6677ntzSXBxW0SswF6Dqj:WpSPr/Vp/bntGXeXsAIqj

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-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3292	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe
3292	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3292 wrote to memory of 1052	3292	AcroRd32.exe	87
PID 3292 wrote to memory of 1052	3292	AcroRd32.exe	87
PID 3292 wrote to memory of 1052	3292	AcroRd32.exe	87
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 4264	1052	RdrCEF.exe	90
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91
PID 1052 wrote to memory of 2916	1052	RdrCEF.exe	91

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 DE.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:3292
- 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:1052
- - 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=CF8D4C2216B92A7B2A68A9CFABD3DB1D --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4264
- - 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=ADAA63E7A8D400147893FEBB75C04342 --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=ADAA63E7A8D400147893FEBB75C04342 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2916
- - 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=9540624CD26BD5C95AA85997C5073233 --mojo-platform-channel-handle=2328 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4140
- - 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=3AEA7E89F6DB91A0BD1D90C397336450 --mojo-platform-channel-handle=2332 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3016
- - 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=35225C929EB5EB329BC0B9DE8C41FCD9 --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=35225C929EB5EB329BC0B9DE8C41FCD9 --renderer-client-id=6 --mojo-platform-channel-handle=1860 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3688
- - 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=D8D637685102E1A454C7B9A09CDCBA09 --mojo-platform-channel-handle=2660 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3932

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1276

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
81e5168feecd51e4b95d35459952f55a

SHA1
9ead584f4e9b23bb18d1c5af16166794c165a2bc

SHA256
3c02873625a0703d92bf30bf86b2093f5c9268500161560bf239ad1fe58e9f61

SHA512
cf196df6c8818673d535e0fd8bdd3f8b279f944383edf8160188be112717716a52a8c5956801663e9c9951f51eaee87e6f392a2c4fbee64c07de6b7bea611299

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