a794ac78882a744b97acebed7a6a76ac8b3cfdef9d38bd891aa262081e303d52

Analysis

max time kernel
142s
max time network
143s
platform
windows11-21h2_x64
resource
win11-20231215-en
resource tags

arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system
submitted
01-02-2024 15:22

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General

Target

examples/annots.pdf
Size

384KB
MD5

a1554914cc9653d5ee0b9220657b334f
SHA1

5eb368ec30c2952742fa67eaf26e36b0b75a7598
SHA256

6037b7375a67f3b9b3d067f01b078159be5a173c6646cc19c3aa3359a9b1cfd3
SHA512

99227f1383cda1e7f9a6246511c3767c71b05ffa3a7533473a5d3d5e73bae4646bfabf1e15f1bdc5a013dde713f481c32b08101ce22c8f0219e7ddf5b2191f4e
SSDEEP

12288:L8O7lkGroRza7EYtAKZbxlnOUAjJkcZ17zwNP:LV7ltsz9YzPkT0P

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-1-5-21-894477223-740240645-3565689000-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3876	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe
3876	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3876 wrote to memory of 2584	3876	AcroRd32.exe	79
PID 3876 wrote to memory of 2584	3876	AcroRd32.exe	79
PID 3876 wrote to memory of 2584	3876	AcroRd32.exe	79
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 2336	2584	RdrCEF.exe	80
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81
PID 2584 wrote to memory of 3056	2584	RdrCEF.exe	81

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\examples\annots.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:3876
- 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:2584
- - 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=E3CEAFABFABFF01B79067DFE1BB96DF2 --mojo-platform-channel-handle=1756 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2336
- - 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=F112E7578FA9F9D541CE5EA7D4A3264B --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=F112E7578FA9F9D541CE5EA7D4A3264B --renderer-client-id=2 --mojo-platform-channel-handle=1772 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3056
- - 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=E5A0C5C81B3FD05D4C7B44FB2F6C6DCC --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=E5A0C5C81B3FD05D4C7B44FB2F6C6DCC --renderer-client-id=4 --mojo-platform-channel-handle=2324 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3064
- - 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=FA8B4997EB6CFCB811B6741735259FDC --mojo-platform-channel-handle=2476 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2428
- - 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=7221C54EA2E4780C2E32F9931E80F4F4 --mojo-platform-channel-handle=2580 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2728
- - 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=15B129B205F31B818EDFB5A2E943799E --mojo-platform-channel-handle=2552 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:416

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:772

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
51047240e33f1bdf0651b1afc0f5d3b8

SHA1
fce95f525661b098c1df88e5a302f49a0d2c9fd0

SHA256
5d75f6d7befcbfb92133f9df262e98fe2b1f820def44db595cfe54cf1546c208

SHA512
f99670e8581f976b3bae2a3b8aeedcce6c6a11759bf99e879bd3b657f8902fb59e0748b3ff2c254cf0d7699033a406e46ed934015ba431554c48617cb939155b

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