3fde592fd3c5b3746ed5c9819654ba120eff7139c868fbb3593727d4877905e8

Analysis

max time kernel
141s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 08:42

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General

Target

KeyTweak Manual.pdf
Size

90KB
MD5

66ad79fab3e10fefefa716ca782c4ba3
SHA1

99df91a8fdc6e6783faeba5de429254170268f97
SHA256

7a7f8063d71700a13802f283b8f1cbf718909bb283b3b7a3188dd7a25df60d46
SHA512

f924bcb8bc4a8fb118ca530a9fceea9e0402b10b06d9e231ac5ea8b36dfbb0459160d6c5b94c302ce49140f62eaec320cd2a4133db78b394881d6f391d960dea
SSDEEP

1536:6WUso8LVQr6kH5gq0FE+JlbxixDJsxatnTSUUh+Zw+2M/EwN2EdeQr02Sju4D4:6LsVY6G5yFE+TbJ2fvhBNVr02SjF4

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-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1020	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe
1020	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1020 wrote to memory of 2108	1020	AcroRd32.exe	85
PID 1020 wrote to memory of 2108	1020	AcroRd32.exe	85
PID 1020 wrote to memory of 2108	1020	AcroRd32.exe	85
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 4964	2108	RdrCEF.exe	86
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	RdrCEF.exe	87
PID 2108 wrote to memory of 3388	2108	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\KeyTweak Manual.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:1020
- 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:2108
- - 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=0130821AC2323959AFC80813CE45E39A --mojo-platform-channel-handle=1752 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4964
- - 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=0A53E2443EFB46DED4E8096FB99EBED6 --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=0A53E2443EFB46DED4E8096FB99EBED6 --renderer-client-id=2 --mojo-platform-channel-handle=1760 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3388
- - 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=1222236146228AF3C55F96874B429AC6 --mojo-platform-channel-handle=2280 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2976
- - 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=7B4F8BC0103A54EA7C41D92F44D51918 --mojo-platform-channel-handle=2376 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3152
- - 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=239583ABAA06FEF65427D23580BF577A --mojo-platform-channel-handle=2332 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1548
- - 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=E276D376A6C76006AB53226111E6FB6A --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=E276D376A6C76006AB53226111E6FB6A --renderer-client-id=7 --mojo-platform-channel-handle=1868 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2652

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:5052

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
ee00ff62e3695135d37416f13b76214e

SHA1
4297c6a84bee7b4904f6b1e4cebf0b78b7670c60

SHA256
d999b2bef3518dff66e308d24437dd41fa5610af55cbfede90cc17c660d3b10d

SHA512
b48b4ef100e04f55f602cd80b1761d154a02cc37d278864020cbbc850500c0495d1acce0b26dcb79a22588a4f6907662f92789aa70e09d0736af9a886ccce005

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