b7cd8c3b4d567bc03481ee06331784c69d2720bd2dcaacfb1523561ddf9ff140

Analysis

max time kernel
202s
max time network
212s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
15/06/2023, 05:59

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General

Target

Guyton-y-Hall.-Tratado-de-fisio-John-E.-Hall.pdf
Size

45.6MB
MD5

643be342ed6372f44cfe0837ab1194c7
SHA1

a55c697ade8c09cc72648a3c46d91adcdd86ff48
SHA256

b7cd8c3b4d567bc03481ee06331784c69d2720bd2dcaacfb1523561ddf9ff140
SHA512

bf7eae9f00cffaf8eae5e0bc49aa5a410e1e8b8ca4a0ffe1ab691fbc453b8d6e6cb614c25cd3717c9ff3dc9e4a4b086f1223d970cf6d8baf79d2ea0638484964
SSDEEP

786432:hizlGlzeiz5rYh9DiUlEWfCE9V+m9MkRLhPWEMZLDs86anLW6X2Vt3B5fG9YuJYC:hDlyIr+sQf9yKNT9ozX0tRs9YaYC

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-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4080	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe
4080	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4080 wrote to memory of 3572	4080	AcroRd32.exe	84
PID 4080 wrote to memory of 3572	4080	AcroRd32.exe	84
PID 4080 wrote to memory of 3572	4080	AcroRd32.exe	84
PID 4080 wrote to memory of 3600	4080	AcroRd32.exe	85
PID 4080 wrote to memory of 3600	4080	AcroRd32.exe	85
PID 4080 wrote to memory of 3600	4080	AcroRd32.exe	85
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 3948	3572	RdrCEF.exe	86
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87
PID 3572 wrote to memory of 1472	3572	RdrCEF.exe	87

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\Guyton-y-Hall.-Tratado-de-fisio-John-E.-Hall.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:4080
- 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:3572
- - 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=AAF0AA4219F447C5339569F99CD7E5FA --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3948
- - 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=6E0EDBF1BA1F13893037DE242AF5BB8F --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=2 --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=6E0EDBF1BA1F13893037DE242AF5BB8F --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1472
- - 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=6CA321C783E727FBB84D6DE965B8CE3C --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=2 --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=6CA321C783E727FBB84D6DE965B8CE3C --renderer-client-id=4 --mojo-platform-channel-handle=2152 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3912
- - 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=04CC8CFFC41BB14B8C3C596ED6CAD05A --mojo-platform-channel-handle=2548 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3440
- - 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=B1910F530063EE8EBEBFA7A2767F84F6 --mojo-platform-channel-handle=2560 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3708
- - 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=D6647C1CF23772716A7CC453FD3B1B09 --mojo-platform-channel-handle=2556 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4800
- 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:3600

Network

MITRE ATT&CK Enterprise v6

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

Loading Replay Monitor...

Downloads

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

Filesize
64KB

MD5
9e70dec72464a277896dea85d22e54e0

SHA1
2d175cd735cc102375966421b464390354b7aaee

SHA256
9ee58ee0c948386db1f38a46b295b140a2e86b16613b4957a8455d1fdb5512d6

SHA512
9a4b055efc73c33cc3b5a5f490bd2faf293248564be366278f9f427da984f02eb303d0ade624be705360959d11a2f0f0eecfeb49c6b09f544e57031eeed94358

Download Submit
memory/4080-266-0x000000000CF60000-0x000000000D20B000-memory.dmp

Filesize
2.7MB

Download
memory/4080-270-0x000000000C100000-0x000000000C24D000-memory.dmp

Filesize
1.3MB

Download
memory/4080-276-0x000000000C100000-0x000000000C24D000-memory.dmp

Filesize
1.3MB

Download