a6e43e8a253536c1af0e7386ac66cd01ae19faf29c97f87e30f8407106077279

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2023 14:40

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General

Target

2643a034bfb7cb2373584cdbd39ee075.pdf
Size

86KB
MD5

2643a034bfb7cb2373584cdbd39ee075
SHA1

8292264c6eb447e982bae772902516e07c0d105c
SHA256

a6e43e8a253536c1af0e7386ac66cd01ae19faf29c97f87e30f8407106077279
SHA512

3d6e46071f422485a7ef82dbf644f15c718e066da573b2b2ce89bc4ff3dddd6c60279e4d5f65b26eaf4fade1c4cbdb4bfbec48492c361aec9ff19f4cc09a4aca
SSDEEP

1536:pu2lguB9Qn8SeDENQqlCl5B6xVoG/emh+br6yHGIiWHpOvBMu56WVzzamByC:wAfQn8mCl5gm5m8NHGjv6u5bzuy

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-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4588	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe
4588	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4588 wrote to memory of 416	4588	AcroRd32.exe	95
PID 4588 wrote to memory of 416	4588	AcroRd32.exe	95
PID 4588 wrote to memory of 416	4588	AcroRd32.exe	95
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 1544	416	RdrCEF.exe	96
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97
PID 416 wrote to memory of 4052	416	RdrCEF.exe	97

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\2643a034bfb7cb2373584cdbd39ee075.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:4588
- 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:416
- - 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=26A2FB7F5FDECD0CE974183592427E04 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1544
- - 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=B57CC359393DE0600E931576D66C9784 --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=B57CC359393DE0600E931576D66C9784 --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4052
- - 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=224C1E52F811DACEF50AC434D07B1632 --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=224C1E52F811DACEF50AC434D07B1632 --renderer-client-id=4 --mojo-platform-channel-handle=2168 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:5076
- - 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=DDEB9A6CBA2A15CB7AD6915170071A4B --mojo-platform-channel-handle=2420 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2644
- - 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=7D725DF6EB2DA2FD901A7E821699A469 --mojo-platform-channel-handle=1940 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5092
- - 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=7492DBC73D65C75BE595704B81147F02 --mojo-platform-channel-handle=2628 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2592

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4512

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
33121a202158daaffcb2b59f2d585c26

SHA1
d76a1e37cbecb5b34ae507834702de5add302470

SHA256
48515ac2f172299f9920e6870b7088bfdd56e231408ad7960d271da5f92733de

SHA512
5c92807df62d720df54a998c02a716ef9d2812865ebf5e5db07741cc452a56f74150fd3871fed5916bb32c42b95a9a288370fcbe4298a4ba45bcbbe274ef5a04

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