c19febea8a913281871549f4421e7cabfc0e452de58f7c975b4a945504e733b4

Analysis

max time kernel
142s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2024, 13:45

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General

Target

8708dfcd9dc6a6f02070b07225ad7db8.pdf
Size

96KB
MD5

8708dfcd9dc6a6f02070b07225ad7db8
SHA1

c8b8e9c794a6063bf8c360af703d897878e6fb9d
SHA256

c19febea8a913281871549f4421e7cabfc0e452de58f7c975b4a945504e733b4
SHA512

acf8b0259f631c639fe762bf38da7728527fb057928e1c5a0bcead239fa75576f22a34791daf76dd0496a867e18fd51de9506faf5f886c35a5a67a17baef31b5
SSDEEP

3072:VOChcCXfr6kgdyf/wYrHDEUqlXa6sLJCy:VOChcCXj6kgIXXHDEUqBPM

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AcroRd32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1728	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 3920	1728	AcroRd32.exe	86
PID 1728 wrote to memory of 3920	1728	AcroRd32.exe	86
PID 1728 wrote to memory of 3920	1728	AcroRd32.exe	86
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 2840	3920	RdrCEF.exe	88
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89
PID 3920 wrote to memory of 3008	3920	RdrCEF.exe	89

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\8708dfcd9dc6a6f02070b07225ad7db8.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:1728
- 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:3920
- - 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=A16B6948FFD5500720D675449718617A --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2840
- - 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=CF2293B2A144E6AEE61D5F0B88E7088E --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=CF2293B2A144E6AEE61D5F0B88E7088E --renderer-client-id=2 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3008
- - 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=F0245286C358F80C7A3775CCBB6D18B7 --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=F0245286C358F80C7A3775CCBB6D18B7 --renderer-client-id=4 --mojo-platform-channel-handle=2188 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1208
- - 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=06AC16131B53466ADE5D03C564138DBF --mojo-platform-channel-handle=2552 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2092
- - 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=E58453B3662354C9CA1A56D1426396B2 --mojo-platform-channel-handle=1956 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3792
- - 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=208521E98D9A87728306ACE05E1BC9B8 --mojo-platform-channel-handle=2656 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2160

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3452

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
afafda124b9db929012e9bdfdb33ab48

SHA1
d5738da5f9a9d4bcab3c353093df142a9ec08edf

SHA256
5c8ea65bf5963323a3020fbb89b88e68aedb39ed33fbcaf8d253214d1a9ab94f

SHA512
84f2759db15e8cd5fe45ff769e110b0d06536a3cb8d8a0336ed60b0de5203a19981bb5f3a841ee74492d8cbc39d5b1271ae5ef1c52006f990601fee08e5f96bd

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