7cb7a3a9673b834f25f84349dcee16ef342c4e96eba17bc2b1fce56d2341f75f

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
13/02/2024, 18:45

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General

Target

99de3e11171c33f9445775d092dfc92e.pdf
Size

33KB
MD5

99de3e11171c33f9445775d092dfc92e
SHA1

b2da942d61e5d855b8631774a0e8224de245632d
SHA256

7cb7a3a9673b834f25f84349dcee16ef342c4e96eba17bc2b1fce56d2341f75f
SHA512

b1348f8860679c0836d1fc394c3ba9e54d7f48e3886955dfdcf4b0f16d8894976af0adbb815904d61eebda85faa7c922e3cadb6161cd8b0ca7840bff170206cb
SSDEEP

768:u2Ye4E7as/HP/dUvNF4wsaQW8jdsr2Rk2wrWL0mRP:+e5fndGQW8psrY8rmRP

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
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4920	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe
4920	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4920 wrote to memory of 2664	4920	AcroRd32.exe	82
PID 4920 wrote to memory of 2664	4920	AcroRd32.exe	82
PID 4920 wrote to memory of 2664	4920	AcroRd32.exe	82
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 752	2664	RdrCEF.exe	85
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86
PID 2664 wrote to memory of 1228	2664	RdrCEF.exe	86

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\99de3e11171c33f9445775d092dfc92e.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:4920
- 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:2664
- - 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=1D1267C18853AD6F78DC5B223557A8A2 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:752
- - 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=A30B4B77BBEE73B4A31A71586CDF34FC --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=A30B4B77BBEE73B4A31A71586CDF34FC --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1228
- - 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=BD06C0B991156E3A1923D6FDB76CA2FA --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=BD06C0B991156E3A1923D6FDB76CA2FA --renderer-client-id=4 --mojo-platform-channel-handle=2176 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4740
- - 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=7794712C092FC3D6BBA5B25FA7F4F098 --mojo-platform-channel-handle=2424 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2940
- - 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=FDA7C686D8F3D1C5B2C5CDEE87DC8F13 --mojo-platform-channel-handle=1720 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:960
- - 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=A676925B82EC0192FCBDF592D280DC8E --mojo-platform-channel-handle=2464 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4384

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3144

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
e7037f243a1ed4ff8a7994420b7fbe0f

SHA1
54e903c9af06bef2665d64f1cfd48c716b9ed380

SHA256
59c7c9e3f2a611765a248c009ff665a51ed7c39b17f21c4c6100d64707c1df84

SHA512
7aaa63d6ae1ec29b43bece47e53d2b8b701c37f4d1b1d3b8f2dbb698f79b1d7700be6946451f5743ba2a36b8ef714ba865724fd29055251fc2b1a3fad093f57f

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