4cc93fa4fbc2c951be1187ed9f76eabf0f0c58ee2252a08150810a3f6ea9a48e

Analysis

max time kernel
141s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22/12/2023, 14:08

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General

Target

b81df22ed79ee12e7836b1b3bc8e12ba.pdf
Size

79KB
MD5

b81df22ed79ee12e7836b1b3bc8e12ba
SHA1

9c4eaca7852aff8e74c1f6c1bc80f7bd1f73b0f4
SHA256

4cc93fa4fbc2c951be1187ed9f76eabf0f0c58ee2252a08150810a3f6ea9a48e
SHA512

8eee818339c94553d10d6fdc6907e66a54e7ddbefc815662d5ef70789d32ac568c26b08078e342edf41e3ee361296c52125999961f526f34d2bea2407979f722
SSDEEP

1536:fG0GighkA8FUkZM4Uuqm3QXWqXHCkO4LM2BeSPp+18U+QXNPEi1PgzKKy7R:0t8eh4zQxX1lMzKpHU5XO6oWR

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
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4752	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe
4752	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4752 wrote to memory of 4012	4752	AcroRd32.exe	96
PID 4752 wrote to memory of 4012	4752	AcroRd32.exe	96
PID 4752 wrote to memory of 4012	4752	AcroRd32.exe	96
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 4440	4012	RdrCEF.exe	98
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	RdrCEF.exe	97
PID 4012 wrote to memory of 1204	4012	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\b81df22ed79ee12e7836b1b3bc8e12ba.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:4752
- 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:4012
- - 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=3DC327816279F35B2E84E7F73112A1CF --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=3DC327816279F35B2E84E7F73112A1CF --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1204
- - 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=8ACB3A411E2A3F757C98CF178AFEF005 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4440
- - 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=A57CC75363A5E5427698A302C24BDCEB --mojo-platform-channel-handle=2296 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3672
- - 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=A82ADADE6937CE3ABE709330FD468730 --mojo-platform-channel-handle=2436 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3272
- - 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=0FD21210736265728F965B55CDBAE046 --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=0FD21210736265728F965B55CDBAE046 --renderer-client-id=5 --mojo-platform-channel-handle=1852 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:5064
- - 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=725F7DB91974B7F8256C362F126CC946 --mojo-platform-channel-handle=2652 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4348

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
de7d60e44b2fe4dda25b5770083a765f

SHA1
7a151d3a14dab9af39e438df2ced924bae99a823

SHA256
b7abb58effb58fb597dcfe24608b21374d300be2c727698584888c80fd8d4410

SHA512
b22f5617206dca1fd06a1a9315a265f504d67d9d51dbaf1cc8c9b0d3701d16e9b9492e3c37f47f2bafff68631526bfccf911dbb4b221130b1add3f40b02b37dc

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