de9b8d3bdb0ebb614df5979e171e6ed651837ade08f234aa4b93964cf1d8dbcf

Analysis

max time kernel
142s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-03-2024 13:21

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General

Target

de9b8d3bdb0ebb614df5979e171e6ed651837ade08f234aa4b93964cf1d8dbcf.pdf
Size

19.4MB
MD5

d7cd63142c8c51351de7f33becb33f71
SHA1

c701dd91458e3bf9611bcb7ac406058b2728410e
SHA256

de9b8d3bdb0ebb614df5979e171e6ed651837ade08f234aa4b93964cf1d8dbcf
SHA512

e3ba099cb886127c5110fde5922a4741d2d7cc346e3a25d58cde8be4c66b2da4590e3d90eb2f59006ed0c658f3b2dff4e09e125b003e9f2fe3c857e03768fe93
SSDEEP

393216:XFcHORaO+7k4MBaXGRNqPANySc4q/0DBsQS6XISu+27bVc0JyEOoL55:1c+h4MBaXGRH2EDBv4TGCyEr55

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
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3948	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe
3948	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3948 wrote to memory of 4756	3948	AcroRd32.exe	85
PID 3948 wrote to memory of 4756	3948	AcroRd32.exe	85
PID 3948 wrote to memory of 4756	3948	AcroRd32.exe	85
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 3444	4756	RdrCEF.exe	86
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	RdrCEF.exe	87
PID 4756 wrote to memory of 2180	4756	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\de9b8d3bdb0ebb614df5979e171e6ed651837ade08f234aa4b93964cf1d8dbcf.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: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" --backgroundcolor=16514043
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4756
- - 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=4D8183D126D2DE547844CD65957F82D1 --mojo-platform-channel-handle=1760 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3444
- - 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=1DFB18E771B7D3AE251778B0652F8168 --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=1DFB18E771B7D3AE251778B0652F8168 --renderer-client-id=2 --mojo-platform-channel-handle=1752 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2180
- - 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=5E0EE569A16D283B83E5D65978320A6D --mojo-platform-channel-handle=2296 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4036
- - 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=3BC58FB3CED8C3CC588170790C8A6734 --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=3BC58FB3CED8C3CC588170790C8A6734 --renderer-client-id=5 --mojo-platform-channel-handle=1820 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2076
- - 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=577680CE458A38A7DB30588744DFC49A --mojo-platform-channel-handle=2632 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2452
- - 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=FB79C57E19F0935DF2D178AD9C7182BE --mojo-platform-channel-handle=1736 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4988

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:5100

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
b44254696fefd8e99e3d66a13c6d0e6a

SHA1
2e45478bb45e300db2f4efea5ca1e932e1fac308

SHA256
ef4cc9ba7f458a7a406f08a881248ff99a0546d14508be50685e782861d504fa

SHA512
ac137e84886d6fb9bb0d2e0b38a4a199732693e9c44f16c66eb690930a5e2c1eae392ed4e868d119d0dbe746a5fed759ae4cee85108d09efd3d03c78a22a660c

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