5632e5b318e8697da0bae6c891955da93df4e71b21ba9fac9f40b1515238ec27

General

Target

attachment20220806-4474-16c0efw.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 18 IoCs

Processes:

AcroRd32.exe

pid	process
1580	AcroRd32.exe
1580	AcroRd32.exe
1580	AcroRd32.exe
1580	AcroRd32.exe
1580	AcroRd32.exe
1580	AcroRd32.exe
1580	AcroRd32.exe
1580	AcroRd32.exe
1580	AcroRd32.exe
1580	AcroRd32.exe
1580	AcroRd32.exe
1580	AcroRd32.exe
1580	AcroRd32.exe
1580	AcroRd32.exe
1580	AcroRd32.exe
1580	AcroRd32.exe
1580	AcroRd32.exe
1580	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

AcroRd32.exe

pid process

1580 AcroRd32.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

AcroRd32.exe

pid process

1580 AcroRd32.exe
1580 AcroRd32.exe
1580 AcroRd32.exe
1580 AcroRd32.exe
1580 AcroRd32.exe
1580 AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

AcroRd32.exeRdrCEF.exe

description	pid	process	target process
PID 1580 wrote to memory of 3228	1580	AcroRd32.exe	RdrCEF.exe
PID 1580 wrote to memory of 3228	1580	AcroRd32.exe	RdrCEF.exe
PID 1580 wrote to memory of 3228	1580	AcroRd32.exe	RdrCEF.exe
PID 1580 wrote to memory of 3892	1580	AcroRd32.exe	RdrCEF.exe
PID 1580 wrote to memory of 3892	1580	AcroRd32.exe	RdrCEF.exe
PID 1580 wrote to memory of 3892	1580	AcroRd32.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4144	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4924	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4924	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4924	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4924	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4924	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4924	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4924	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4924	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4924	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4924	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4924	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4924	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4924	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4924	3228	RdrCEF.exe	RdrCEF.exe
PID 3228 wrote to memory of 4924	3228	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\attachment20220806-4474-16c0efw.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:1580
- 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:3228
- - 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=223DCA2B9DF7C4D973E1E79A8A2C8EC3 --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=223DCA2B9DF7C4D973E1E79A8A2C8EC3 --renderer-client-id=2 --mojo-platform-channel-handle=1720 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4144
- - 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=816ECFCF0CE800893C6E267F6FFF2803 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4924
- - 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=BCB50373EA27D04501BC55463A52E1D7 --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=BCB50373EA27D04501BC55463A52E1D7 --renderer-client-id=4 --mojo-platform-channel-handle=2164 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1552
- - 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=1A378E52678EE250DF55BD220E001790 --mojo-platform-channel-handle=2560 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2828
- - 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=C8CF23D94A58DB5334FCC9EDFEA785C8 --mojo-platform-channel-handle=2580 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3360
- - 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=9A036189C23256FBC355372F190DD143 --mojo-platform-channel-handle=2636 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2052
- 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:3892

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/1552-143-0x0000000000000000-mapping.dmp

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memory/2052-154-0x0000000000000000-mapping.dmp

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memory/2828-148-0x0000000000000000-mapping.dmp

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memory/3228-132-0x0000000000000000-mapping.dmp

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memory/3360-151-0x0000000000000000-mapping.dmp

Download
memory/3892-133-0x0000000000000000-mapping.dmp

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memory/4144-135-0x0000000000000000-mapping.dmp

Download
memory/4924-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads