49866aebf2398df1559f07c95caeb9e8bc906fe4e825ca934ff47304b3910ff9

General

Target

kaiwan-n-billimoria-linux-kernel-programming-part-2-2021.pdf
Size

14.1MB
MD5

f3c3dd0f5d1b8400a53f04f6120e1497
SHA1

9d9b0fbd520ca060898dfc259d598a74bdc97709
SHA256

49866aebf2398df1559f07c95caeb9e8bc906fe4e825ca934ff47304b3910ff9
SHA512

999101eb6473a19c7a7a93fb87797368d79416eecbb0267f079c2574b1f1b20954d2e44fb19005b81207fc9c988078e81b525aa8857c698132d8d3ab6b69ff59

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 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

Processes:

AcroRd32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

AcroRd32.exe

pid	process
4732	AcroRd32.exe
4732	AcroRd32.exe
4732	AcroRd32.exe
4732	AcroRd32.exe
4732	AcroRd32.exe
4732	AcroRd32.exe
4732	AcroRd32.exe
4732	AcroRd32.exe
4732	AcroRd32.exe
4732	AcroRd32.exe
4732	AcroRd32.exe
4732	AcroRd32.exe
4732	AcroRd32.exe
4732	AcroRd32.exe
4732	AcroRd32.exe
4732	AcroRd32.exe
4732	AcroRd32.exe
4732	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

4732 AcroRd32.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

AcroRd32.exeAdobeARM.exe

pid process

4732 AcroRd32.exe
4732 AcroRd32.exe
4732 AcroRd32.exe
4732 AcroRd32.exe
4732 AcroRd32.exe
3168 AdobeARM.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

AcroRd32.exeRdrCEF.exe

description	pid	process	target process
PID 4732 wrote to memory of 3456	4732	AcroRd32.exe	RdrCEF.exe
PID 4732 wrote to memory of 3456	4732	AcroRd32.exe	RdrCEF.exe
PID 4732 wrote to memory of 3456	4732	AcroRd32.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 1940	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	RdrCEF.exe	RdrCEF.exe
PID 3456 wrote to memory of 3472	3456	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\kaiwan-n-billimoria-linux-kernel-programming-part-2-2021.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:4732

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:3456

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=734DDFB3C9EC7989012AF624D3A4528A --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:1940

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=924DD819DB4E47AA7CC1A0CD65C6B263 --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=924DD819DB4E47AA7CC1A0CD65C6B263 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
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=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=8093C60C321C0CE9A50448E7CF073355 --mojo-platform-channel-handle=2184 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:3976

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=EA416EDB40121168ACE988FAF75FB7A6 --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=EA416EDB40121168ACE988FAF75FB7A6 --renderer-client-id=5 --mojo-platform-channel-handle=2020 --allow-no-sandbox-job /prefetch:1
3⤵
PID:3884

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=669D4F8772C43A65061041C34BBF3B74 --mojo-platform-channel-handle=2564 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:4292

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=71AF06D7B470B7F1DE19A5A6CBEDBDFA --mojo-platform-channel-handle=2300 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:4104

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 use of SetWindowsHookEx
PID:3168

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:2920

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4796

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/1940-132-0x0000000000000000-mapping.dmp

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memory/2920-154-0x0000000000000000-mapping.dmp

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memory/3168-153-0x0000000000000000-mapping.dmp

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memory/3456-130-0x0000000000000000-mapping.dmp

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memory/3472-135-0x0000000000000000-mapping.dmp

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memory/3884-143-0x0000000000000000-mapping.dmp

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memory/3976-140-0x0000000000000000-mapping.dmp

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memory/4104-151-0x0000000000000000-mapping.dmp

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memory/4292-148-0x0000000000000000-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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