fbe1b3658381f6205594ab54f898bc8570584f1d17372ab13490b730e5fce8a2

Analysis

max time kernel
146s
max time network
148s
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, 14:05

Sharing

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General

Target

b642b05c4bbd11d44ab9ecd34c8bb762.pdf
Size

34KB
MD5

b642b05c4bbd11d44ab9ecd34c8bb762
SHA1

9fc158d0ee772749ec97798455bb1c506b9dadba
SHA256

fbe1b3658381f6205594ab54f898bc8570584f1d17372ab13490b730e5fce8a2
SHA512

b2da809fb5ab90cf2645d08d52dabcde62dad59d5abd15be05a96aa0bdcc862de5786f339d15f2e1d0fd347ea49acf1d81df413d2aee052dfccee360152bf112
SSDEEP

768:liIwZNGd0y8uxCFmEukCwVRQPyeh0zq7jsNRyVEeuNHjdYc:8IwPO5CF8kCwVaPIzq8NcVE5NHec

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-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4300	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe
4300	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4300 wrote to memory of 1632	4300	AcroRd32.exe	91
PID 4300 wrote to memory of 1632	4300	AcroRd32.exe	91
PID 4300 wrote to memory of 1632	4300	AcroRd32.exe	91
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 212	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 4708	1632	RdrCEF.exe	93

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\b642b05c4bbd11d44ab9ecd34c8bb762.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:4300
- 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:1632
- - 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=30B4F3C37D08AF41BCAF4E9001F552C8 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:212
- - 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=107A8885B9AF272E79740405ABA7F553 --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=107A8885B9AF272E79740405ABA7F553 --renderer-client-id=2 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4708
- - 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=45B9D2559F7924F5293AD38604D4D523 --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3472
- - 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=AEB9F5DA4D71B68686FC9247023113AD --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=AEB9F5DA4D71B68686FC9247023113AD --renderer-client-id=5 --mojo-platform-channel-handle=2516 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3284
- - 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=253258D5974F9C319FB778D939B78C80 --mojo-platform-channel-handle=2696 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3356
- - 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=D4130246DBE2A51E7C4D90AC70BEFFF9 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2540

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
331c3cf7f966289b31a0ef699aab9263

SHA1
726b198722c38050645015c0f8ddacc2b68a6ac8

SHA256
2ecd7cb53b6100e9854ae023b5f679816adcec660b0cd9354f326b3b1a004cbf

SHA512
7dccfc2419f9d7634d103f6442df69ff3bcebc2757d7cec8da485f6412aa48c52c93c51c48e33bad0f0f111f7681217104204bb489d3bcf4d466b9063d220a2b

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
56KB

MD5
c26ed30e7d5ab440480838636efc41db

SHA1
c66e0d00b56abebfb60d2fcc5cf85ad31a0d6591

SHA256
6a3c5c4a8e57f77ecc22078fbf603ecc31fb82d429bd87b7b4b9261447092aef

SHA512
96cdb78bca3e01d4513c31661987e5646e6a8ff24708918aa0d66dfa3ca5d98af4862c9f38c4f41f933c345d2d3adfb1d34d1430b33f45f916f41a9872a030df

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit
memory/4300-26-0x000000000A360000-0x000000000A3B0000-memory.dmp

Filesize
320KB

Download