0f9c0bd42f1df79138cae641d05325caa028b42e58872c5e75af8a0d1d18b045

Analysis

max time kernel
142s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 16:31

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General

Target

attachment-3.pdf
Size

16KB
MD5

e58b5be637f98bbdf3fbc4697b1aa9b4
SHA1

654280f265390a1e05178da7e465295b08ee9ada
SHA256

dbd4fc9c15f8294a3079e9ba6d3e5d43e272e43ccda9ff78da92fbcbe398b3f5
SHA512

aa0df404c6a60c76fae7253096c3198aafbdce35c7114412a940b86af028775994aaac1505944ae9c781b60253f8f6998bcf2bb51315351013a6f99a749a3ecf
SSDEEP

384:O3HVqDpGgL1cVArWRxDcZViWjbk19kxLFfKK/560bOzUy1iy7mdvofmq:jjpcI8ouQC9af3HbOgeiyFT

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-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2240	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe
2240	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 1632	2240	AcroRd32.exe	91
PID 2240 wrote to memory of 1632	2240	AcroRd32.exe	91
PID 2240 wrote to memory of 1632	2240	AcroRd32.exe	91
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3380	1632	RdrCEF.exe	92
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93
PID 1632 wrote to memory of 3192	1632	RdrCEF.exe	93

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\attachment-3.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:2240
- 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:1632
- - 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=42E077CDF82A36B5948BA99B0BA69868 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:3380
- - 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=48963A0C396FEA867BB4037DC516646D --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=48963A0C396FEA867BB4037DC516646D --renderer-client-id=2 --mojo-platform-channel-handle=1724 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3192
- - 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=3AF837F602D7243DA6D45E74522E3402 --mojo-platform-channel-handle=2308 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4556
- - 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=701928D468A7290C30E94610646D52CA --mojo-platform-channel-handle=1940 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:2740
- - 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=39984C33232737681DEF636AC4966F68 --mojo-platform-channel-handle=2452 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1564
- - 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=3835592F45E331AA3D26DC156F73D540 --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=3835592F45E331AA3D26DC156F73D540 --renderer-client-id=8 --mojo-platform-channel-handle=1988 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:2184

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3128

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
a133c7d71371f9ba793479586034db13

SHA1
8739ac7f98df33cfe7bb11bf2384bec772f7f130

SHA256
a3439e995d5f7f906d5fc1c057446c47837619a6001cc5bccd5297d15bbcf439

SHA512
e9fbed505e5eeaaa9309ccd2479936e4c07f42fd7481179c12a088146e944fb52cc0e877dba385c6a46dcd171c2558adfb29e7d2ecbf040f3611992951e3e809

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