a9c4c84a4a92c547e28d47e70f68092f5836f4dc2e8558cf3e48da746f546707

Analysis

max time kernel
141s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
24/01/2024, 07:46

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General

Target

71ab703d545e5b038748576aaffd23b0.pdf
Size

90KB
MD5

71ab703d545e5b038748576aaffd23b0
SHA1

174a0494684ce0c545a4cec7f22fff80ed2f3542
SHA256

a9c4c84a4a92c547e28d47e70f68092f5836f4dc2e8558cf3e48da746f546707
SHA512

7689a39ebbe58dc240c935a6c81caefaec6347c77980fc5175ddf1ec7da6d346e3488f8a8411a2eb1503c71e4da5bbcb96f1ccdddb05e7b07e7b502b5b52b5a3
SSDEEP

1536:wMSdJ1S2cIqBCyQn6EeVdeWJUWhNlzLCRBb8Q2BWCcealEugjpWaW0NsYf05aWHb:3yDJyo6EeTeW2km9pealEJjDNUqvE

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-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4360	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe
4360	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4360 wrote to memory of 2708	4360	AcroRd32.exe	91
PID 4360 wrote to memory of 2708	4360	AcroRd32.exe	91
PID 4360 wrote to memory of 2708	4360	AcroRd32.exe	91
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 1412	2708	RdrCEF.exe	94
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95
PID 2708 wrote to memory of 4620	2708	RdrCEF.exe	95

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\71ab703d545e5b038748576aaffd23b0.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:4360
- 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:2708
- - 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=FC936563D724B4DDC65C212B106A7A48 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1412
- - 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=4818BBAD6A3E686AC50A0BFC1EC25964 --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=4818BBAD6A3E686AC50A0BFC1EC25964 --renderer-client-id=2 --mojo-platform-channel-handle=1728 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4620
- - 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=7F6BDC2A3EE0654F3D0335A814974D02 --mojo-platform-channel-handle=2276 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4500
- - 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=60CC1F94CA842B55EBF09FF0CDD13AD6 --mojo-platform-channel-handle=1924 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5044
- - 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=4ECBA4DBEBC54C1F25F24B5B75ACE2EC --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=4ECBA4DBEBC54C1F25F24B5B75ACE2EC --renderer-client-id=6 --mojo-platform-channel-handle=2292 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:5028
- - 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=86CF3E948C30023768710A9C5F207E70 --mojo-platform-channel-handle=1956 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5004

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4920

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
f73e538e43b95ad292e477e1a1ec3671

SHA1
295d3312c7f46585e195cd79ff4ea0878fca7049

SHA256
4dc446775064eefd0f3c3e7291b7cd5dc3afbd19e368b3a0675ab315597badb1

SHA512
662231c75bee67e4242beed8c1cba8b1458687b6160634389d63c47bd20f4ac438945ea916d98aa2606bb17e16dfcf64fc2cb25dd9948b03b55349ee47a86f02

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