526cd157df6a045703d353ce9e66680ac4aa810ec1c5759d59809cf09b3dd234

Analysis

max time kernel
147s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28-02-2024 13:43

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General

Target

ac05a867d4cfc18d9d08186486f73c80.pdf
Size

91KB
MD5

ac05a867d4cfc18d9d08186486f73c80
SHA1

036ed3a3e1eda4dbb37ebd34cab73a32790cca8d
SHA256

526cd157df6a045703d353ce9e66680ac4aa810ec1c5759d59809cf09b3dd234
SHA512

1e1baf27ba5ffd2adc2e07ebd3b3db3ff011ec96921d5fb8de76f64c29cee8eff66a55a87a80de8db0eedd5d31fd43e8eb4e1666e918a90ffa33e2d7ea2d910d
SSDEEP

1536:rtTdF9iUbGB4CIdQm17MKjaHdQNZb2dvoWYpO2+WFvYmrIY3btnRwGgf:BTdFA5R8HgKja9QNO2Xv7tRwR

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-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
340	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe
340	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 340 wrote to memory of 1172	340	AcroRd32.exe	90
PID 340 wrote to memory of 1172	340	AcroRd32.exe	90
PID 340 wrote to memory of 1172	340	AcroRd32.exe	90
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4088	1172	RdrCEF.exe	92
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93
PID 1172 wrote to memory of 4828	1172	RdrCEF.exe	93

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\ac05a867d4cfc18d9d08186486f73c80.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:340
- 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:1172
- - 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=AAF1506F659A5A1C5B6FA962C9C82B4D --mojo-platform-channel-handle=1748 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4088
- - 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=F57D494F08231BB43BD17EA58260610D --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=F57D494F08231BB43BD17EA58260610D --renderer-client-id=2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4828
- - 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=63D7BE487381FAF32348B99702050299 --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=63D7BE487381FAF32348B99702050299 --renderer-client-id=4 --mojo-platform-channel-handle=2328 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3680
- - 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=C438F717B4E72A5B5287903A577A9ECB --mojo-platform-channel-handle=2468 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4024
- - 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=23202DC88BF9E6B731582DF92302F841 --mojo-platform-channel-handle=1856 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1464
- - 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=C12B291CCB4095734FDF71E800D20CDC --mojo-platform-channel-handle=1744 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1116

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4736

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
cdaadfc158ca82e10c8fe96e31d93a37

SHA1
a048fa6ca36ebde1cd334904836bbc5ca7badd45

SHA256
adb1878e5ab2a312e0571dd357579a9923e08527696852beff82d2d59586ac1f

SHA512
6a8b7fd45bdfa973bfbc6ac56e8134385d9201ae7344e8382b1bd2e672c5832ea83026ce8c06e664c67a3de4d0e6170e4d1165e3eade7216d669f609eb6ff117

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