83b84863e57ef61a6789498ddd6c2a9cd5a0e45605b72de4b11e52993288b505

Analysis

max time kernel
144s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
03-02-2024 19:17

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General

Target

8d21d6e0fa758d3eafbe899f4001aa7b.pdf
Size

89KB
MD5

8d21d6e0fa758d3eafbe899f4001aa7b
SHA1

205ae763a4adc0f76918f1a9d68bb210b382f1b3
SHA256

83b84863e57ef61a6789498ddd6c2a9cd5a0e45605b72de4b11e52993288b505
SHA512

b7c0914df1d2b1ab9f975409215f0eae5c4c8169751a4c407a46e7c6e9c0a9cf2803c3ad6ed5a7fdc9692a70a39e01a339345a823dcc19753ef9946d3102baea
SSDEEP

1536:2bF9up0oaFRUNK0ph8ABPHeF4FyjZUu7+t47R/G2q/zycJWsBZnELB5KWOpOwrNM:raPUxP8ABPa4F2Z7+u7hXczLZnkB5/wi

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	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
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2508	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe
2508	AcroRd32.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 3596	2508	AcroRd32.exe	87
PID 2508 wrote to memory of 3596	2508	AcroRd32.exe	87
PID 2508 wrote to memory of 3596	2508	AcroRd32.exe	87
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 1048	3596	RdrCEF.exe	88
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89
PID 3596 wrote to memory of 3860	3596	RdrCEF.exe	89

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\8d21d6e0fa758d3eafbe899f4001aa7b.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:2508
- 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:3596
- - 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=A3028EF97E4E7F3F1B6E1AC5A793418B --mojo-platform-channel-handle=1740 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1048
- - 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=ECB2BAE2F77B6211E5004220EF739155 --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=ECB2BAE2F77B6211E5004220EF739155 --renderer-client-id=2 --mojo-platform-channel-handle=1732 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:3860
- - 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=346D9552D248E91EEB927FCF429609D1 --mojo-platform-channel-handle=2288 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:4860
- - 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=3C17CED01DD59D966389494A682F537B --mojo-platform-channel-handle=2432 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1212
- - 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=738BF6D22C7561FB52110E293B91DD45 --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=738BF6D22C7561FB52110E293B91DD45 --renderer-client-id=6 --mojo-platform-channel-handle=2520 --allow-no-sandbox-job /prefetch:1
    3⤵
    PID:4240
- - 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=2D3813B12F7F8CC525D0EE9F41E23AF1 --mojo-platform-channel-handle=2340 --allow-no-sandbox-job --ignored=" --type=renderer " /prefetch:2
    3⤵
    PID:1660

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3732

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

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Downloads

C:\Users\Admin\AppData\LocalLow\Adobe\Acrobat\DC\ReaderMessages

Filesize
64KB

MD5
24556bb7ef1587b1abe4c4d58e4d8298

SHA1
64c8426fafe2baedc4fabb4435771125ab68755f

SHA256
bd4b66964b5ec09221233062dc70ae9264cf2589ffed9ea871ab19e2936004eb

SHA512
4c7cd4aa785705f8f52c54f61ba7b06cd821f3cccd15294b1c6d97d40699d44deb6d451db6e819010676bab11441e4c9f6d08875d49e6171f2cdcbcd09183225

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