5632e5b318e8697da0bae6c891955da93df4e71b21ba9fac9f40b1515238ec27

General

Target

attachment20220806-28763-r2ik2a.pdf
Size

13KB
MD5

807b20cafcc48015dce101a39951be4d
SHA1

bd0dafa34f92b5b01cf90709d523b813899a3afa
SHA256

5632e5b318e8697da0bae6c891955da93df4e71b21ba9fac9f40b1515238ec27
SHA512

38e3e018d400b686ebd4335837274391c5499f8120d2b411b090a1ec7201b7ce749d40500f42c1e7a0c3c28a26984bddc5ea6b9421409e4652627f0382a86fa8

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-1-5-21-3463845317-933582289-45817732-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 16 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

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

4732 AcroRd32.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

AcroRd32.exe

pid process

4732 AcroRd32.exe
4732 AcroRd32.exe
4732 AcroRd32.exe
4732 AcroRd32.exe
4732 AcroRd32.exe
4732 AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

AcroRd32.exeRdrCEF.exe

description	pid	process	target process
PID 4732 wrote to memory of 756	4732	AcroRd32.exe	RdrCEF.exe
PID 4732 wrote to memory of 756	4732	AcroRd32.exe	RdrCEF.exe
PID 4732 wrote to memory of 756	4732	AcroRd32.exe	RdrCEF.exe
PID 4732 wrote to memory of 4360	4732	AcroRd32.exe	RdrCEF.exe
PID 4732 wrote to memory of 4360	4732	AcroRd32.exe	RdrCEF.exe
PID 4732 wrote to memory of 4360	4732	AcroRd32.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 1140	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	RdrCEF.exe	RdrCEF.exe
PID 756 wrote to memory of 4016	756	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\attachment20220806-28763-r2ik2a.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:756

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=B67959ED23BB43CADB37CB8E8EBA99D8 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:1140

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=7007900D03385F2F92D8DAF5AAEE24BF --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=7007900D03385F2F92D8DAF5AAEE24BF --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
3⤵
PID:4016

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=546672B09474E3DFAF4DA1C0B6AB7D30 --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=546672B09474E3DFAF4DA1C0B6AB7D30 --renderer-client-id=4 --mojo-platform-channel-handle=2160 --allow-no-sandbox-job /prefetch:1
3⤵
PID:980

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=88091838FB390B860E85E01C00993AB2 --mojo-platform-channel-handle=1864 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:2196

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=F5EC7BE3398990AB110ABC17866506AC --mojo-platform-channel-handle=1896 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:208

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=7A66124A03FCC477BE9FE57ACA7F8581 --mojo-platform-channel-handle=2572 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:3132

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:4360

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1728

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/208-151-0x0000000000000000-mapping.dmp

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memory/756-132-0x0000000000000000-mapping.dmp

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memory/980-143-0x0000000000000000-mapping.dmp

Download
memory/1140-135-0x0000000000000000-mapping.dmp

Download
memory/2196-148-0x0000000000000000-mapping.dmp

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

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memory/4016-138-0x0000000000000000-mapping.dmp

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memory/4360-133-0x0000000000000000-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