914a2c2c19db036ef1a1b9734707810d95a45287e890a189d5af028cf76b4b72

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
31-05-2024 17:13

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General

Target

WCR-form.pdf
Size

435KB
MD5

5b267f56f9a3ef130c72d940b862537d
SHA1

97cef704ba8c2949c88968eb9cfe273b5e404724
SHA256

914a2c2c19db036ef1a1b9734707810d95a45287e890a189d5af028cf76b4b72
SHA512

0d25b9e9be51801c3d7b140e60d25501b432be26ab0beff88e9df084ae558c57aff88c3455e6606fa1d7c1eb61589b49b6c087e391b5e664756044f16f281f6c
SSDEEP

12288:8x+9jNyPbkQoa0zPELCLHHLFV/KdMdEnYw55/btj:8sZNOhN0z3HP/3inYm5Dtj

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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4768	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe
4768	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4768 wrote to memory of 3824	4768	AcroRd32.exe	92
PID 4768 wrote to memory of 3824	4768	AcroRd32.exe	92
PID 4768 wrote to memory of 3824	4768	AcroRd32.exe	92
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 2580	3824	RdrCEF.exe	95
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96
PID 3824 wrote to memory of 4176	3824	RdrCEF.exe	96

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\WCR-form.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:4768
- 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:3824
- - 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=C577A0B714C0244772D3C469CB45DE9C --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2580
- - 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=9E773866F5B9E5BA8D1B0820B297A1F9 --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=9E773866F5B9E5BA8D1B0820B297A1F9 --renderer-client-id=2 --mojo-platform-channel-handle=1820 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4176
- - 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=459F3D7CB1D0328495A01822B2C66512 --mojo-platform-channel-handle=2312 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2084
- - 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=FB6D65AEDCBB26B961F379398F666D8C --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=FB6D65AEDCBB26B961F379398F666D8C --renderer-client-id=5 --mojo-platform-channel-handle=1796 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2348
- - 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=2D115F67CDECE11DFE6A6F7E446DCC2C --mojo-platform-channel-handle=1728 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2764
- - 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=75EEB50F7A257B6882C75AA03E2F7B97 --mojo-platform-channel-handle=2724 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:764

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2324

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
773051a2fc091fd712d1fd84b39f9ea2

SHA1
aabb7242e7ba9349e73b52a8b539c489b8ea7808

SHA256
7fdc98886501cbfbe5d06872cbf1f44de93a7aea0b5e2a52c63904dd5132f180

SHA512
880d90be90ab6823794614c64ebde31c9da177041e3d070ed820b4f5e97e421c4c9c70195aa3b18df5dba703006b222a5c01cf0e249162bbc778828978d48cb1

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
memory/4768-124-0x000000000AED0000-0x000000000B17B000-memory.dmp

Filesize
2.7MB

Download