4858e5564a04d2e8b49b4acb6bb76bf24a044630ae72fda21c1e736e59a89afe

General

Target

andrew-tanenbaum-david-wetherall-computer-networks-2021.pdf
Size

22.2MB
MD5

f55f4db55efe39ae280272fa8abb538c
SHA1

e97e06f7a3e0d6637ade6696e66f6d8195bc5d67
SHA256

4858e5564a04d2e8b49b4acb6bb76bf24a044630ae72fda21c1e736e59a89afe
SHA512

c2601d74d3a4e701b29e263446e132cb830d2d5027353f8256416caade0f1604cbf5cb901b7ea78bf5d7cf516e547ff6600f246e48bd1867572eb6fce5044c2e

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

Processes:

AcroRd32.exe

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

Processes:

AcroRd32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

AcroRd32.exeAdobeARM.exe

pid	process
3636	AcroRd32.exe
3636	AcroRd32.exe
3636	AcroRd32.exe
3636	AcroRd32.exe
3636	AcroRd32.exe
3636	AcroRd32.exe
3636	AcroRd32.exe
3636	AcroRd32.exe
3636	AcroRd32.exe
3636	AcroRd32.exe
3636	AcroRd32.exe
3636	AcroRd32.exe
3636	AcroRd32.exe
3636	AcroRd32.exe
3636	AcroRd32.exe
3636	AcroRd32.exe
3636	AcroRd32.exe
3636	AcroRd32.exe
2628	AdobeARM.exe
2628	AdobeARM.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

3636 AcroRd32.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

AcroRd32.exeAdobeARM.exe

pid process

3636 AcroRd32.exe
3636 AcroRd32.exe
3636 AcroRd32.exe
3636 AcroRd32.exe
3636 AcroRd32.exe
2628 AdobeARM.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

AcroRd32.exeRdrCEF.exe

description	pid	process	target process
PID 3636 wrote to memory of 4580	3636	AcroRd32.exe	RdrCEF.exe
PID 3636 wrote to memory of 4580	3636	AcroRd32.exe	RdrCEF.exe
PID 3636 wrote to memory of 4580	3636	AcroRd32.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1712	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe
PID 4580 wrote to memory of 1424	4580	RdrCEF.exe	RdrCEF.exe

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\andrew-tanenbaum-david-wetherall-computer-networks-2021.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:3636

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:4580

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=D61E5CA0C0A8C6734559F9EEC0B8A9E3 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:1712

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=E037A2F991C462D7ABCB66E6CC443301 --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=1 --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=E037A2F991C462D7ABCB66E6CC443301 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
3⤵
PID:1424

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=CE166FD7EAF38C2293C3E2D287CEFBFB --mojo-platform-channel-handle=2332 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:3536

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=C7714066C7CB02A49E0ECAB12A2F3AB3 --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=1 --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=C7714066C7CB02A49E0ECAB12A2F3AB3 --renderer-client-id=5 --mojo-platform-channel-handle=1848 --allow-no-sandbox-job /prefetch:1
3⤵
PID:4108

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=5BFB63C051A81AAD3D9923C22AA4AF47 --mojo-platform-channel-handle=2524 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:4992

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=E7099B016CD6332E9A581C5C766188E5 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:4196

C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe
"C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\AdobeARM.exe" /PRODUCT:Reader /VERSION:19.0 /MODE:3
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:2628

C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Reader_sl.exe
"C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Reader_sl.exe"
3⤵
PID:3132

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2612

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1424-135-0x0000000000000000-mapping.dmp

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memory/1712-132-0x0000000000000000-mapping.dmp

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memory/2628-153-0x0000000000000000-mapping.dmp

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memory/3132-154-0x0000000000000000-mapping.dmp

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memory/3536-140-0x0000000000000000-mapping.dmp

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memory/4108-143-0x0000000000000000-mapping.dmp

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memory/4196-151-0x0000000000000000-mapping.dmp

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memory/4580-130-0x0000000000000000-mapping.dmp

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memory/4992-148-0x0000000000000000-mapping.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads