ebbe6a1fe2d6e6ae0dfa355150d93c46afdf9b390e319b2f00c27e37a53217e9

Analysis

max time kernel
101s
max time network
81s
platform
windows10-1703_x64
resource
win10-20230915-en
resource tags

arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
submitted
01/10/2023, 18:48

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

combined-disclosures-and-disclaimer.pdf
Size

127KB
MD5

d40bbb902e6388de4cbba199e834504a
SHA1

97418db67d9413d5fb7265e9e34b3d1d5dabc648
SHA256

ebbe6a1fe2d6e6ae0dfa355150d93c46afdf9b390e319b2f00c27e37a53217e9
SHA512

d69d9080c31a10804ca7ae67bd2e61ae04ce568273554f24777c2cce0103293d5cee383b58da785ab3971ec1c033d241952341a31807863f98ac239635abca92
SSDEEP

1536:ELO/PpXAYaMBSkcIXZftj7013wfStMM4DOtpmRjwS4+wo4R:SuPpX3asqIXH7WAfSMZRH404R

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-1-5-21-844837608-3875958368-2945961404-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4384	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe
4384	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4384 wrote to memory of 308	4384	AcroRd32.exe	69
PID 4384 wrote to memory of 308	4384	AcroRd32.exe	69
PID 4384 wrote to memory of 308	4384	AcroRd32.exe	69
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 4892	308	RdrCEF.exe	70
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71
PID 308 wrote to memory of 5056	308	RdrCEF.exe	71

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\combined-disclosures-and-disclaimer.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:4384
- 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:308
- - 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=D5A63419917E499A8331FEC456FDABB2 --mojo-platform-channel-handle=1640 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4892
- - 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=A46640F5B9BE01AB5043BB42296F9CA0 --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=A46640F5B9BE01AB5043BB42296F9CA0 --renderer-client-id=2 --mojo-platform-channel-handle=1664 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:5056
- - 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=BAB20DFF87D293B976DBE250F7BA2D9C --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=BAB20DFF87D293B976DBE250F7BA2D9C --renderer-client-id=4 --mojo-platform-channel-handle=2200 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2736
- - 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=1CA73450A522AE7242C8C75E2E994825 --mojo-platform-channel-handle=2348 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4584
- - 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=714462667289E593FA1635CD938EB19B --mojo-platform-channel-handle=2596 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4400
- - 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=DE550C9A7C4EF47805224F28F9BBABEA --mojo-platform-channel-handle=2776 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:764

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
43d80de39e2cbd6be68725a335f4f0df

SHA1
490f22b1f72168f498caba320d3b2ab783bd9a34

SHA256
cb3bb299615466bb5cbea6dbab5ed7332c0925bd3aca8595f8439b7ccfc17a52

SHA512
5c4a744520bd59b94b7c8b005c12cafeac04e964d661460817fbc7dd57179106589779dfc29330f095db62afe64948b61b2a4c53ceab221cffe680e9258e4ec0

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