dfc3b9d8c1c917111040e6b065a2c08a99b07f8c6de1f256fd35368af1c81a75

Analysis

max time kernel
141s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17-04-2024 05:22

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General

Target

dfc3b9d8c1c917111040e6b065a2c08a99b07f8c6de1f256fd35368af1c81a75.pdf
Size

299KB
MD5

c69a699a416c23f6aa99c549c22ca2f7
SHA1

52a985383cb5bcd63e7dde3b5446c4c4d2c80f80
SHA256

dfc3b9d8c1c917111040e6b065a2c08a99b07f8c6de1f256fd35368af1c81a75
SHA512

560dc675f7bef38e26ddf71712e91cdf1679b47dfc9cb8e1b0af8d27d2938313be40c99203c280a9caca6a3a0d92f38f46c6e011e4ffaff38ccdc39b33bc1ee7
SSDEEP

6144:IOvOfT8DIlcX3KbIP00Woe4oxvj5N+ThDSWOv:IOvOf20+KbIPhc4oXcmWs

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-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2672	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe
2672	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 4532	2672	AcroRd32.exe	92
PID 2672 wrote to memory of 4532	2672	AcroRd32.exe	92
PID 2672 wrote to memory of 4532	2672	AcroRd32.exe	92
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 2504	4532	RdrCEF.exe	93
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94
PID 4532 wrote to memory of 560	4532	RdrCEF.exe	94

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\dfc3b9d8c1c917111040e6b065a2c08a99b07f8c6de1f256fd35368af1c81a75.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:2672
- 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:4532
- - 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=EFFE7EADD411252D0263783B23BDDF17 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2504
- - 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=57F2ED519CE8D98DBDE9AE1668EB62A8 --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=57F2ED519CE8D98DBDE9AE1668EB62A8 --renderer-client-id=2 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:560
- - 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=472047345E867902FBF6A29985391469 --mojo-platform-channel-handle=2276 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1824
- - 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=08306BB1A7816690549347DD57B05566 --mojo-platform-channel-handle=2320 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3720
- - 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=77423F9CBFD0532A1E44B6CF2BE34217 --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=77423F9CBFD0532A1E44B6CF2BE34217 --renderer-client-id=6 --mojo-platform-channel-handle=2404 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1732
- - 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=F31EED298D698E75015B6F5F7ECB692A --mojo-platform-channel-handle=2732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2804

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4236

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
19c4303463c1ee585b93890636745433

SHA1
43e405e154eda1c6c4b8a0aa732446442fb70723

SHA256
caae4674d96327cfef0768d2505896c3f03804a5327aa57a5399aef49fea9c3c

SHA512
3e408a797656f57471325f832ebd1cca6e6ef16a647ecc49c2e5343b18da5cab960ac2005ebb8c217e56af66f2f37e185db2562ce763b402e57e71e5d035b174

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