8591c97b32031f0f693e19c2266df8538482b90a61ec803890fa2d44ae5eb2ac

Analysis

max time kernel
92s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
07/07/2024, 00:13

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General

Target

8591c97b32031f0f693e19c2266df8538482b90a61ec803890fa2d44ae5eb2ac.pdf
Size

211KB
MD5

b057cf18003e4649d973cfdacc2398cb
SHA1

f17ebea79081a7a37d1224fc1a82c173699ef2dd
SHA256

8591c97b32031f0f693e19c2266df8538482b90a61ec803890fa2d44ae5eb2ac
SHA512

322b15657ab3b361050b8bea749f8e36f3f714ae28e26af7e84c3375a77ab0246492c10096d3dbb69190c982bce143138532e94bd722e0ff5e5a978841eb0648
SSDEEP

6144:F1Q5F9kvadhFXbNb5MbioKitWQZfGaNrru:FOr9LhFrXMvcQh7ra

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-1-5-21-1403246978-718555486-3105247137-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4960	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe
4960	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4960 wrote to memory of 3496	4960	AcroRd32.exe	85
PID 4960 wrote to memory of 3496	4960	AcroRd32.exe	85
PID 4960 wrote to memory of 3496	4960	AcroRd32.exe	85
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 2116	3496	RdrCEF.exe	86
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	RdrCEF.exe	87
PID 3496 wrote to memory of 1912	3496	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\8591c97b32031f0f693e19c2266df8538482b90a61ec803890fa2d44ae5eb2ac.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:4960
- 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:3496
- - 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=C9EF2A7FFB19B3BB3DEAAD3612392CCA --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2116
- - 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=3B0B642E5BD3ADF1B89C63D57668C19A --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=3B0B642E5BD3ADF1B89C63D57668C19A --renderer-client-id=2 --mojo-platform-channel-handle=1740 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:1912
- - 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=496E940EA1FD9594709C5C8E8091C82C --mojo-platform-channel-handle=1812 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4164
- - 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=9C9F774408E7F9734978FAFCD87266FA --mojo-platform-channel-handle=2332 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4964
- - 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=DEF2B37AACEEA94046BBB97C207D1483 --mojo-platform-channel-handle=2108 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2376
- - 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=DBCD85A1B642A15EDAE8FA999CAF18D0 --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=DBCD85A1B642A15EDAE8FA999CAF18D0 --renderer-client-id=8 --mojo-platform-channel-handle=2524 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4596

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2452

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

Loading Replay Monitor...

Downloads

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

Filesize
64KB

MD5
4065fd4c4ea7fca16c00deb175a425d3

SHA1
2b4aa17bcfac44676aa463b90d73e92cc86c399f

SHA256
fd55e9fe3a573e6134cb7175667beaecb180f4db479619c6ccd0e7bca29db2d2

SHA512
057d4520713d37359cbee25b6a17f4639ac9b2faa9a387911fde17e74cb532a776164e6c6de64cc55e6ad69c7317c0c2367f5c8bb492976e1015da68b4bf83cf

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

Filesize
56KB

MD5
c26ed30e7d5ab440480838636efc41db

SHA1
c66e0d00b56abebfb60d2fcc5cf85ad31a0d6591

SHA256
6a3c5c4a8e57f77ecc22078fbf603ecc31fb82d429bd87b7b4b9261447092aef

SHA512
96cdb78bca3e01d4513c31661987e5646e6a8ff24708918aa0d66dfa3ca5d98af4862c9f38c4f41f933c345d2d3adfb1d34d1430b33f45f916f41a9872a030df

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

Filesize
56KB

MD5
752a1f26b18748311b691c7d8fc20633

SHA1
c1f8e83eebc1cc1e9b88c773338eb09ff82ab862

SHA256
111dac2948e4cecb10b0d2e10d8afaa663d78d643826b592d6414a1fd77cc131

SHA512
a2f5f262faf2c3e9756da94b2c47787ce3a9391b5bd53581578aa9a764449e114836704d6dec4aadc097fed4c818831baa11affa1eb25be2bfad9349bb090fe5

Download Submit