7b210be2ddebcc7f8ed3cb8048f54721764959c98c5316b96fb2bbc197bea821

Analysis

max time kernel
141s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04-02-2024 15:32

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General

Target

8f830977ee0457c8076302632dc78f4c.pdf
Size

72KB
MD5

8f830977ee0457c8076302632dc78f4c
SHA1

0ff8d01c0a269b2ae3c44b200ca24ac101961b3a
SHA256

7b210be2ddebcc7f8ed3cb8048f54721764959c98c5316b96fb2bbc197bea821
SHA512

d04defcd3924dfaf4a873e1d99c1818ecb4070a937b676dc0fbbd4931beea30558276f3fd7ecafa66445ae5b1602b56a85009403a3c4729513da77b44adb707a
SSDEEP

1536:SdL1L3PCz9f3S/6FtatCrezAfBSyW5IkNazke+Zw6zj2ekUe:e1DPYSGiqoaDksYeMw6V8

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

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1696	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe
1696	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1696 wrote to memory of 5292	1696	AcroRd32.exe	84
PID 1696 wrote to memory of 5292	1696	AcroRd32.exe	84
PID 1696 wrote to memory of 5292	1696	AcroRd32.exe	84
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 892	5292	RdrCEF.exe	85
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86
PID 5292 wrote to memory of 988	5292	RdrCEF.exe	86

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\8f830977ee0457c8076302632dc78f4c.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:1696
- 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:5292
- - 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=293997D51EBAFEB25D00FE231A9AB1ED --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:892
- - 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=A41EAA4DC87E98570133A9A41CCD5ED4 --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=4 --enable-main-frame-before-activation --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=A41EAA4DC87E98570133A9A41CCD5ED4 --renderer-client-id=2 --mojo-platform-channel-handle=1764 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:988
- - 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=81CFA8BBCCB114923824E82B03018793 --mojo-platform-channel-handle=2292 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:116
- - 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=CF56709039C5A109ADEFDA4CBEE42046 --mojo-platform-channel-handle=1884 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    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=FC198C8386E54657EA8265D6FFFC2B26 --mojo-platform-channel-handle=1924 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4860
- - 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=85F439941AEB92E2605F70C15223FAF7 --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=4 --enable-main-frame-before-activation --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=85F439941AEB92E2605F70C15223FAF7 --renderer-client-id=7 --mojo-platform-channel-handle=2296 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2972

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:220

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
64KB

MD5
469fc737111bb08ff6dd1848b19a422b

SHA1
cd565dab9f4257d2c0da79fd08b16035a00ff7f4

SHA256
0c378b3c7d8b399533f28fffe657741907916b52a032aff4036cf1c1593f23dd

SHA512
ef0815a00b10d22079f9fa512fc9c51047c53682148bfa43af3181a207f1900a78b150bff4e936707049d917b60df9854c0c457dde192e8d30fc9acec125b970

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
36KB

MD5
b30d3becc8731792523d599d949e63f5

SHA1
19350257e42d7aee17fb3bf139a9d3adb330fad4

SHA256
b1b77e96279ead2b460de3de70e2ea4f5ad1b853598a4e27a5caf3f1a32cc4f3

SHA512
523f54895fb07f62b9a5f72c8b62e83d4d9506bda57b183818615f6eb7286e3b9c5a50409bc5c5164867c3ccdeae88aa395ecca6bc7e36d991552f857510792e

Download Submit
C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit