89eb52f6dc21c398e8bd897bcb573cc459334849174e857fb23f2b61763cb296

Analysis

max time kernel
150s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2023, 22:15

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General

Target

NOTICE_-_Change_in_Background_March_2023.pdf
Size

112KB
MD5

9e5d85a3adc3971be50d894982bd592b
SHA1

3cd27c3dbc35ab5e03cf3642e1248347e7c203ef
SHA256

89eb52f6dc21c398e8bd897bcb573cc459334849174e857fb23f2b61763cb296
SHA512

3689804156cde6f5b1f90114330d8b5d07d33f5f9948fd7e97631032bed2e688939b90fa7a0bf3ee62b18fe67d354cfc6f7e92ea398a7103759e02a027b8e275
SSDEEP

3072:98of7KxM9NlX3t2BlX2SDxykvbeJEp1xLFvL9:99WxM9TnAHdxvC+1Fvh

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-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4320	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe
4320	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4320 wrote to memory of 3812	4320	AcroRd32.exe	89
PID 4320 wrote to memory of 3812	4320	AcroRd32.exe	89
PID 4320 wrote to memory of 3812	4320	AcroRd32.exe	89
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 4808	3812	RdrCEF.exe	90
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91
PID 3812 wrote to memory of 3324	3812	RdrCEF.exe	91

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\NOTICE_-_Change_in_Background_March_2023.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:4320
- 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:3812
- - 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=EE1CD80379429F7A6CA186A32E8B8232 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4808
- - 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=9757BDD296EED903BFB2C5A9BF5398CD --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=2 --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=9757BDD296EED903BFB2C5A9BF5398CD --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3324
- - 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=F0BC6255D7AF65F834444AB7A7CBD26B --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4636
- - 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=662DA02D2788E498313DCC7723813DF3 --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=2 --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=662DA02D2788E498313DCC7723813DF3 --renderer-client-id=5 --mojo-platform-channel-handle=1888 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3988
- - 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=7E13A01848D8EA735359B676C3A4E42D --mojo-platform-channel-handle=2448 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1708
- - 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=9D861463EE815410DA70A6B9B9EF8FE8 --mojo-platform-channel-handle=2336 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5068

Network

MITRE ATT&CK Enterprise v6

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

Filesize
64KB

MD5
f17eb5babae1304c2ad6bb183aad16a1

SHA1
1bde562ab3e6e35228f99e6b1cc4d2260a2d26bf

SHA256
46b0ec26452912fd55a29327bc17ad27d9882446d5e54fffdd5a28f7c97383af

SHA512
530c09b09baad8353c3697897a44f4843386a27dceb2024db145a816d88b55790b65a08c95a035135c8327abb73ce373ef0970f70411aa0b595567e51201a063

Download Submit