6d855933bcf3b00943a7b4b214ef3cf75435bba766ad5d03468f71ff8056b4f7

General

Target

Handbook for CTFers.pdf
Size

45.9MB
MD5

dce4c0016a80787727ebcdab463588a1
SHA1

6311dc059260108666a33ddb7f81a4adcdca3bc5
SHA256

6d855933bcf3b00943a7b4b214ef3cf75435bba766ad5d03468f71ff8056b4f7
SHA512

00c62ad8efd8ba641d497b84acc88232cde776e1c22ce5200b6fd932cace06eae02a2eb5ec562bda30757eb38fabdb0855b8b99820cb5c242ae4d229ddd47c59

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-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

2628 AcroRd32.exe
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

AcroRd32.exeAdobeARM.exe

pid process

2628 AcroRd32.exe
2628 AcroRd32.exe
2628 AcroRd32.exe
2628 AcroRd32.exe
2736 AdobeARM.exe

pid	process
2628	AcroRd32.exe

pid	process
2628	AcroRd32.exe
2628	AcroRd32.exe
2628	AcroRd32.exe
2628	AcroRd32.exe
2736	AdobeARM.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

AcroRd32.exeRdrCEF.exe

description	pid	process	target process
PID 2628 wrote to memory of 2460	2628	AcroRd32.exe	RdrCEF.exe
PID 2628 wrote to memory of 2460	2628	AcroRd32.exe	RdrCEF.exe
PID 2628 wrote to memory of 2460	2628	AcroRd32.exe	RdrCEF.exe
PID 2628 wrote to memory of 3544	2628	AcroRd32.exe	RdrCEF.exe
PID 2628 wrote to memory of 3544	2628	AcroRd32.exe	RdrCEF.exe
PID 2628 wrote to memory of 3544	2628	AcroRd32.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2212	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	RdrCEF.exe	RdrCEF.exe
PID 2460 wrote to memory of 2200	2460	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\Handbook for CTFers.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2628

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:2460

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=EBE11B3175C85CA5E64999165ECA8438 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:2212

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=C158297CE0480DA61650A91F9B775F8E --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=C158297CE0480DA61650A91F9B775F8E --renderer-client-id=2 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job /prefetch:1
3⤵
PID:2200

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=04F9B61A98F0208F116668EFC4681611 --mojo-platform-channel-handle=2292 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:4628

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=180DDD4C251802E0C18208113BD73003 --mojo-platform-channel-handle=1800 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:2276

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=AEE21A74F9C424EA09A3F3E385988465 --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=AEE21A74F9C424EA09A3F3E385988465 --renderer-client-id=6 --mojo-platform-channel-handle=324 --allow-no-sandbox-job /prefetch:1
3⤵
PID:3464

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=6DFB1B8138089B09FC9D8C0DD2407E9D --mojo-platform-channel-handle=2764 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
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" --backgroundcolor=16514043
2⤵
PID:3544

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:2736

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3984

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/2200-136-0x0000000000000000-mapping.dmp

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memory/2212-133-0x0000000000000000-mapping.dmp

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memory/2276-144-0x0000000000000000-mapping.dmp

Download
memory/2460-130-0x0000000000000000-mapping.dmp

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memory/2736-154-0x0000000000000000-mapping.dmp

Download
memory/3324-152-0x0000000000000000-mapping.dmp

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memory/3464-147-0x0000000000000000-mapping.dmp

Download
memory/3544-131-0x0000000000000000-mapping.dmp

Download
memory/4628-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads