efa9b3d065404eb3252b2f4499aa13525deec6634efbad337dd20f84ceabb0a2

General

Target

attachment20220806-26331-1ccwl4i.pdf
Size

148KB
MD5

1fbc9d7180b404ef0983fcc900f1d98f
SHA1

a38d4ddc3636f5ebfbcd0a4dbd0ab9a395bfedaa
SHA256

efa9b3d065404eb3252b2f4499aa13525deec6634efbad337dd20f84ceabb0a2
SHA512

7654b8396d7df82d0abcabc765f2e7da1f9c277b76505e62a08f1d347d87ce4663c89f959fc694057f941c864ac824557ef86de256f20116841d8b700d76a61e

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-1-5-21-2660308776-3705150086-26593515-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

AcroRd32.exe

pid	process
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe
4916	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

4916 AcroRd32.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

AcroRd32.exe

pid process

4916 AcroRd32.exe
4916 AcroRd32.exe
4916 AcroRd32.exe
4916 AcroRd32.exe
4916 AcroRd32.exe
4916 AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

AcroRd32.exeRdrCEF.exe

description	pid	process	target process
PID 4916 wrote to memory of 3452	4916	AcroRd32.exe	RdrCEF.exe
PID 4916 wrote to memory of 3452	4916	AcroRd32.exe	RdrCEF.exe
PID 4916 wrote to memory of 3452	4916	AcroRd32.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 740	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	RdrCEF.exe	RdrCEF.exe
PID 3452 wrote to memory of 3736	3452	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\attachment20220806-26331-1ccwl4i.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:4916

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:3452

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=34DA5497C15FDBCACCD7673D867CBF84 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:740

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=02022EF47977BFEC8DFCD1D0C0081326 --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=02022EF47977BFEC8DFCD1D0C0081326 --renderer-client-id=2 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job /prefetch:1
3⤵
PID:3736

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=66AA9332BEE125CEC7C152101719D480 --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=66AA9332BEE125CEC7C152101719D480 --renderer-client-id=4 --mojo-platform-channel-handle=2172 --allow-no-sandbox-job /prefetch:1
3⤵
PID:3992

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=3681DC2FA3FE3E9CCFD9FAA91F4541A6 --mojo-platform-channel-handle=2660 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:4348

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=9C6D50C1D8EDC9767C8B47F6B7FEDEAC --mojo-platform-channel-handle=1936 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:4324

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=1A50999543CA976CFFEA1A6338491F5D --mojo-platform-channel-handle=2840 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
3⤵
PID:1076

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1872

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/740-132-0x0000000000000000-mapping.dmp

Download
memory/1076-151-0x0000000000000000-mapping.dmp

Download
memory/3452-130-0x0000000000000000-mapping.dmp

Download
memory/3736-135-0x0000000000000000-mapping.dmp

Download
memory/3992-140-0x0000000000000000-mapping.dmp

Download
memory/4324-148-0x0000000000000000-mapping.dmp

Download
memory/4348-145-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads