1dff4525775322f0792e8a5fc2b9d897e4d89949ca1ef2b0b9cde3acb7555d2a

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23-02-2024 23:03

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General

Target

a0916be080ab01fd27bc36746caef1a6.pdf
Size

87KB
MD5

a0916be080ab01fd27bc36746caef1a6
SHA1

3763e787d6ac0712e6ca2ea0d0ad7d1d201c1ecd
SHA256

1dff4525775322f0792e8a5fc2b9d897e4d89949ca1ef2b0b9cde3acb7555d2a
SHA512

c1b14a4b5e609eb4a0e604fe597c81dd0aec59d52a132727774ac64bb7c82d8be0111cd67d74fa9d113b3a1d9d184f1b739f6dc43635e7e188971aba3b2d926f
SSDEEP

1536:GVWigaRDgMtjAvLaCMwHNp7xs54oBPqmeRD0cn7WTsP2kDT9xkWubZeRjnV1yWOD:GWi7gM4uwtNxMBPqrNJWTw2GT3q1uLL6

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-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4856	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe
4856	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4856 wrote to memory of 2492	4856	AcroRd32.exe	94
PID 4856 wrote to memory of 2492	4856	AcroRd32.exe	94
PID 4856 wrote to memory of 2492	4856	AcroRd32.exe	94
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 2020	2492	RdrCEF.exe	95
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96
PID 2492 wrote to memory of 4472	2492	RdrCEF.exe	96

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\a0916be080ab01fd27bc36746caef1a6.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:4856
- 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:2492
- - 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=77DE1DE844CC5F74582DE2797A84A867 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2020
- - 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=F7B92029E9C1894E8C7106B8B7AF5371 --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=F7B92029E9C1894E8C7106B8B7AF5371 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4472
- - 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=4CDDE3124707B84DE90CC05421DCCC91 --mojo-platform-channel-handle=2328 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2632
- - 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=9811B48E4F0FCBBDF1B49457A3E7B652 --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=9811B48E4F0FCBBDF1B49457A3E7B652 --renderer-client-id=5 --mojo-platform-channel-handle=2348 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1672
- - 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=6D8F5B510DF441DB6F93557F85671494 --mojo-platform-channel-handle=2704 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4280
- - 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=E5D73C171AF795AEE861AAC5AB0499E8 --mojo-platform-channel-handle=2784 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4196

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4952

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
2a6136aa6304c0cb6a0d5d05aa847a98

SHA1
250d1aa9c4d278dcd91efecafa5270f9de634692

SHA256
24ad24c54b0e0bf558460af5cc017cf33c098e2d90c78ba6f5772d0a7979ed17

SHA512
6e8b915a1d3456a3c2dfe1a97d6408eec59b0268bbac24928d51301c136dca2afd6eed56fa2129e91bd4c6e80dcfccd9c8b30ad64b4e7d0cc3f437dc1e646791

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