8c24a7e1465b461afccec7776e6eab96de7ba3690817fb46dc7e4c8e22b3648c

General

Target

attachment20220806-2490-a21yvp.pdf
Size

14KB
MD5

dafd80ae261beb6b4663488455bcdcb0
SHA1

6b093146d8e5a411ec643ec68b7bf6789d7f8c92
SHA256

8c24a7e1465b461afccec7776e6eab96de7ba3690817fb46dc7e4c8e22b3648c
SHA512

ab8c5320e34fe30f0f70cdc90681dd288fc756ae17d3596b8f9a38297b5e6758e2e4a9681306dbf0f30813a3a40e8de231be1ff6c56bbdbb30d48e10a2c9ea7c

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-1-5-21-2372564722-193526734-2636556182-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

AcroRd32.exe

pid	process
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe
3796	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

3796 AcroRd32.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

AcroRd32.exe

pid process

3796 AcroRd32.exe
3796 AcroRd32.exe
3796 AcroRd32.exe
3796 AcroRd32.exe
3796 AcroRd32.exe
3796 AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

AcroRd32.exeRdrCEF.exe

description	pid	process	target process
PID 3796 wrote to memory of 4412	3796	AcroRd32.exe	RdrCEF.exe
PID 3796 wrote to memory of 4412	3796	AcroRd32.exe	RdrCEF.exe
PID 3796 wrote to memory of 4412	3796	AcroRd32.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 796	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	RdrCEF.exe	RdrCEF.exe
PID 4412 wrote to memory of 2720	4412	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\attachment20220806-2490-a21yvp.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:3796
- 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:4412
- - 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=DD138CBAC141C5F904BB4B0347176DCD --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=DD138CBAC141C5F904BB4B0347176DCD --renderer-client-id=2 --mojo-platform-channel-handle=1736 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:796
- - 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=753E9B16D9B29C6EF3ADEF211BB4F5C6 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2720
- - 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=CB524A1BC3F22DF27FED7F916BB85F46 --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=CB524A1BC3F22DF27FED7F916BB85F46 --renderer-client-id=4 --mojo-platform-channel-handle=2300 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4816
- - 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=C9F0BF052F6D9DDACA44CF9E29DA13FA --mojo-platform-channel-handle=2564 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3336
- - 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=8132B445DB3627C3B62BBE33CECE9DF6 --mojo-platform-channel-handle=2568 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3712
- - 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=CFB15FEB7854BB82D457688B80D59EB2 --mojo-platform-channel-handle=2656 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5076

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4112

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

memory/796-132-0x0000000000000000-mapping.dmp

Download
memory/2720-135-0x0000000000000000-mapping.dmp

Download
memory/3336-145-0x0000000000000000-mapping.dmp

Download
memory/3712-148-0x0000000000000000-mapping.dmp

Download
memory/4412-130-0x0000000000000000-mapping.dmp

Download
memory/4816-140-0x0000000000000000-mapping.dmp

Download
memory/5076-151-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads