948d67b22248fa1bb5cc16538a8d08656a830be7898da970c7ee354a93f07be6

Analysis

max time kernel
144s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2024, 05:50

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General

Target

8b8e749dd403eb91034bef153d6c6a1e.pdf
Size

82KB
MD5

8b8e749dd403eb91034bef153d6c6a1e
SHA1

91524ea33b69367508158897d87b49d533b21aed
SHA256

948d67b22248fa1bb5cc16538a8d08656a830be7898da970c7ee354a93f07be6
SHA512

408993f76606e21163793ca72846d9bb897eecb78f40939d5511387df07fcc01363f4f5cc272150324b402cf04ef1473b43341ff4c5ce73e9d37774e01191c1e
SSDEEP

1536:19h0FnqjD6F1kmB1JQ9lU8JTPpn2Yom0TcbLIG1Wlb/0clZWbpONoA5:H+FnqKF1kLU+Thn2YommcbLlsb/0clbx

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-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1368	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe
1368	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 956	1368	AcroRd32.exe	86
PID 1368 wrote to memory of 956	1368	AcroRd32.exe	86
PID 1368 wrote to memory of 956	1368	AcroRd32.exe	86
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 3416	956	RdrCEF.exe	89
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90
PID 956 wrote to memory of 4392	956	RdrCEF.exe	90

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\8b8e749dd403eb91034bef153d6c6a1e.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:1368
- 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:956
- - 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=E6B5FF4C1F4BFB4C22CCB7B1A7B54B00 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3416
- - 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=44B8865AC24BEAB522E11E0B476EA8D1 --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=44B8865AC24BEAB522E11E0B476EA8D1 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4392
- - 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=51B2FEEA9A5B2AB4562A6D846162358A --mojo-platform-channel-handle=2300 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1668
- - 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=4F5D5FC0514CA04D94791BC252BB7613 --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=4F5D5FC0514CA04D94791BC252BB7613 --renderer-client-id=5 --mojo-platform-channel-handle=2316 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2760
- - 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=23DE428636883C82CDE3998F9F7C4FFC --mojo-platform-channel-handle=2664 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3856
- - 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=65884AD9580AECDEF671796165C95C57 --mojo-platform-channel-handle=2844 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3716

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3368

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
a7a80b5ee83f81856692a492d5cac76d

SHA1
4dbfe45810f5e0b4db6b4d959d0f26b28a350369

SHA256
2c055dc69b3c0e955e07bcdc4166d35f617fbc6252e4df7c21d1c9c02f816dac

SHA512
e108482dbc411db84e7c6db46b975aba5b796fd9417501d04c1d21f12b1733125024dc77aa66ab24b3b0a248d5cdee42bd8037d077c36eacabc86e9f173a7699

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