3cb66b5de89ad5bdde314c91274c66aa0a2c0eb56ef0cfeb7973bc0e4e79e5db

Analysis

max time kernel
142s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
18/07/2023, 20:45

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General

Target

3CB66B5DE89AD5BDDE314C91274C66AA0A2C0EB56EF0CFEB7973BC0E4E79E5DB.pdf
Size

127KB
MD5

fde0e3955cb3efb5e983b94d11729105
SHA1

25026a1fcc256c9fe99a871016310956c0012552
SHA256

3cb66b5de89ad5bdde314c91274c66aa0a2c0eb56ef0cfeb7973bc0e4e79e5db
SHA512

9fc514a5dab0baf33465094ef81be157ffeff0b710d9bda4e67bf406094dfe079a52986347e5f9865b5c35395163cb651167024a33bd744b215895867b48d944
SSDEEP

3072:rFF1uHbxaY8P3QYYYYYYYYYYYYYYYYYYYYYYYYYYYYYyqPcOxbzsg3cx:n1uHbxaYs3QYYYYYYYYYYYYYYYYYYYYf

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-1-5-21-618519468-4027732583-1827558364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3828	AcroRd32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe
3828	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3828 wrote to memory of 4932	3828	AcroRd32.exe	91
PID 3828 wrote to memory of 4932	3828	AcroRd32.exe	91
PID 3828 wrote to memory of 4932	3828	AcroRd32.exe	91
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 1124	4932	RdrCEF.exe	92
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	RdrCEF.exe	93
PID 4932 wrote to memory of 2004	4932	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\3CB66B5DE89AD5BDDE314C91274C66AA0A2C0EB56EF0CFEB7973BC0E4E79E5DB.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:3828
- 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:4932
- - 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=DDF1B84ACA60479F3AC2C3F1CB6A6A71 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1124
- - 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=74F686D4F8C8E83603AEA013656A6320 --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=74F686D4F8C8E83603AEA013656A6320 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2004
- - 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=E8F552D14D5FF4D2907104B5160C573B --mojo-platform-channel-handle=2300 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3620
- - 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=9D5FCAA32A98D3715D3B0BD2C2E69E5E --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=9D5FCAA32A98D3715D3B0BD2C2E69E5E --renderer-client-id=5 --mojo-platform-channel-handle=1872 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1476
- - 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=44D2E85C71FDB5E602F33644AFB81E64 --mojo-platform-channel-handle=2432 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1128
- - 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=CD17373F2F5280D888C817D0F1D73FE2 --mojo-platform-channel-handle=2676 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1632

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4524

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

Loading Replay Monitor...

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
0f97e406dd96eacbe672e8a9f56549a5

SHA1
991c0fa3784ba87d4d35849a72851bdb6601bf5b

SHA256
0fd229e2f8938ba9adac6c55c2f2337215c915921f61c289388139c15cbba888

SHA512
b9ddf005a8dd7132589fb5479a44dbc31e097461466e04bdec9da2192b75d11b59f2f11124fe298229e194feb10934e353ab13411da775a61c17d0c420dc682f

Download Submit