4f3618c77216c7ac8195917e474209eba41e937aa57a594a1fd45abe06696342

Analysis

max time kernel
144s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26-01-2024 02:13

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General

Target

761debc9a204ba36b5b56745ac4f6c70.pdf
Size

77KB
MD5

761debc9a204ba36b5b56745ac4f6c70
SHA1

bb71f42b689bf15d9899a1197d0f0030254d44b6
SHA256

4f3618c77216c7ac8195917e474209eba41e937aa57a594a1fd45abe06696342
SHA512

a54056cb1a25977f574ba0638dfdfe1bb3e105047198e9267dcab32af620fbcb4ea8977cb81da14ddeb70d923c72ec6d78d9e2c50cade3b2f79fdddd99eae5c1
SSDEEP

1536:JUqM1wquKvaIAUsil2PpZiP/+Xv8+rkynhgIFcRsg7EYum1eIkIMckXJxX:quqWEluCHEXfht6EFEvMckXX

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-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5064	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe
5064	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 5064 wrote to memory of 2296	5064	AcroRd32.exe	92
PID 5064 wrote to memory of 2296	5064	AcroRd32.exe	92
PID 5064 wrote to memory of 2296	5064	AcroRd32.exe	92
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4936	2296	RdrCEF.exe	93
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94
PID 2296 wrote to memory of 4496	2296	RdrCEF.exe	94

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\761debc9a204ba36b5b56745ac4f6c70.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:5064
- 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:2296
- - 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=C91F667940F25D6D3DB1DEBEA76F767F --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4936
- - 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=C5B58C78C94B96D9FE7F4FD10C77D78B --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=C5B58C78C94B96D9FE7F4FD10C77D78B --renderer-client-id=2 --mojo-platform-channel-handle=1744 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4496
- - 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=4A2FD5782907B1F418371AD02CD1E58E --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=4A2FD5782907B1F418371AD02CD1E58E --renderer-client-id=5 --mojo-platform-channel-handle=2432 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2092
- - 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=A72DC7F2EED142D408576298EE9A2C3B --mojo-platform-channel-handle=2336 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4080
- - 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=8815CCAD3E58A1CEF36F0C59BB19CEC0 --mojo-platform-channel-handle=2324 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3144
- - 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=76CA535FB3EDF5A995CA0D4FAB1EDB5F --mojo-platform-channel-handle=2412 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4328

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1576

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
106ec7bb6b952eede19479e24f035968

SHA1
f37d2ad159ad5e7cddf2f7477e1faadbf25548ec

SHA256
1d41bc30a6449c0526643878d11df75ddcac099f292de7a062e5228878cd177c

SHA512
8543f636363c28e1ce7e528256c7d75b4199f533bf281466d236c9f10e34c528910a9e77031bdc120084a7e4833914dca1797197225911e499ba63e4803f5f66

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