a1c0c6255c5cc2d9f27d0ddd1621032b03db6299ba6c930e3d976b187beeb66c

Analysis

max time kernel
145s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2023 12:42

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General

Target

26a5a99215b759220d9ed34d19673d12.pdf
Size

71KB
MD5

26a5a99215b759220d9ed34d19673d12
SHA1

866c2b2c65ed1cb59918faf537c826fcc5e984fc
SHA256

a1c0c6255c5cc2d9f27d0ddd1621032b03db6299ba6c930e3d976b187beeb66c
SHA512

34c48d4030fef5f607f046645f1b83a87ce286bd881eca1ae6a4e5f85dcd68bf1761050bbcc05e42e4a38b5186210b1438dcfd952d0464597c99ee9b788fc440
SSDEEP

1536:mtxpgw6OkSF3yrQEySQeE6W6pOu26WtYIYIjAvz+eZGeV:rQF3ycDSQeku25fACeZJ

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
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3008	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe
3008	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 4588	3008	AcroRd32.exe	93
PID 3008 wrote to memory of 4588	3008	AcroRd32.exe	93
PID 3008 wrote to memory of 4588	3008	AcroRd32.exe	93
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 5080	4588	RdrCEF.exe	94
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95
PID 4588 wrote to memory of 2492	4588	RdrCEF.exe	95

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\26a5a99215b759220d9ed34d19673d12.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:3008
- 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:4588
- - 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=5F61D6DB2B596F78ECF431DD7C51C139 --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:5080
- - 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=965CE8D4F3AA5FDE032E912014B78A77 --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=965CE8D4F3AA5FDE032E912014B78A77 --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2492
- - 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=1A95BFD7FB713EE075C06C83A7CBA87E --mojo-platform-channel-handle=2160 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3648
- - 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=248863910635590E1D8047A303380C05 --mojo-platform-channel-handle=2320 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4812
- - 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=F3C01061C3633D19A9B8E55508A74FC7 --mojo-platform-channel-handle=2420 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3632
- - 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=67D69A68784EF00276E04E98E9C69345 --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=67D69A68784EF00276E04E98E9C69345 --renderer-client-id=7 --mojo-platform-channel-handle=1816 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1540

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3188

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
220f8f401d66da9b5efaf210034398cc

SHA1
93d6627527a1fd5005594fa2da7837cdeeaf67ae

SHA256
703e71c1247e3fdb2be809fcff5f3eb912f3ea664e121dbc1bdb43e4e55520ae

SHA512
b39bf51fd1a90291ce25d3ffb97a682feb282267117304b0f21d92bb15c6ebe5fa76367672594904b312c1a14b098ecc03dd7361a8318214f4011a2629717439

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