305fe9713d948af415d69dc10266be69a01ad917535eeaa97622c335864e563f

General

Target

attachment20220906-20109-zrksat.pdf
Size

4.5MB
MD5

1c2a3e547c38e4c41adb8017919add49
SHA1

e075b8d62b9f31ff7b9083bc5bfaab47534382f6
SHA256

305fe9713d948af415d69dc10266be69a01ad917535eeaa97622c335864e563f
SHA512

804c6557682d4b05c69d3734ba93a85cfe31b70660beb3bc0cd4c4355ba78ac0e6a1ff29c96c80001b60743ab80f8bb3b59454f7b9022beb53737e4f5cd60079
SSDEEP

98304:QQ/zTEk5P/igwB+N1zBzOKZhe58kUdqkri4/i05+NxCc4dw5WjhIjZE6dZzK/vNA:B/zT95/GoNZhe58kUdqkri4/i05+NxCy

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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

AcroRd32.exe

pid	process
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe
628	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

628 AcroRd32.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

AcroRd32.exe

pid process

628 AcroRd32.exe
628 AcroRd32.exe
628 AcroRd32.exe
628 AcroRd32.exe
628 AcroRd32.exe
628 AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

AcroRd32.exeRdrCEF.exe

description	pid	process	target process
PID 628 wrote to memory of 4792	628	AcroRd32.exe	RdrCEF.exe
PID 628 wrote to memory of 4792	628	AcroRd32.exe	RdrCEF.exe
PID 628 wrote to memory of 4792	628	AcroRd32.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 4180	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	RdrCEF.exe	RdrCEF.exe
PID 4792 wrote to memory of 1408	4792	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\attachment20220906-20109-zrksat.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:628

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:4792

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=CD4DCD98A79CF0331D157359212E7AC4 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:4180

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=4E14128A9520D4C232ADEF7DD5CA5235 --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=4E14128A9520D4C232ADEF7DD5CA5235 --renderer-client-id=2 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job /prefetch:1
3⤵
PID:1408

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=DFF31C7E1FD276E9D9FD4B0690AAAE3D --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=DFF31C7E1FD276E9D9FD4B0690AAAE3D --renderer-client-id=4 --mojo-platform-channel-handle=2328 --allow-no-sandbox-job /prefetch:1
3⤵
PID:1272

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=700156B994A5C2F6708DEA0C67CE42C6 --mojo-platform-channel-handle=2452 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:4648

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=87AB97E614048282BB92E294981B1A26 --mojo-platform-channel-handle=1840 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:1312

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=141EA752F0386B1ECE82B02377C79101 --mojo-platform-channel-handle=2480 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:4440

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:552

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/1272-142-0x0000000000000000-mapping.dmp

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memory/1312-150-0x0000000000000000-mapping.dmp

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memory/1408-137-0x0000000000000000-mapping.dmp

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memory/4180-134-0x0000000000000000-mapping.dmp

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memory/4440-153-0x0000000000000000-mapping.dmp

Download
memory/4648-147-0x0000000000000000-mapping.dmp

Download
memory/4792-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads