0825e44e4f08206a258952f6a95c847a8ea5d45cc3103b2af4ec71ecd3a90e34

Analysis

max time kernel
165s
max time network
178s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 12:47

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General

Target

36a840f681b2a1dc2a32f2b38640ffdc.pdf
Size

86KB
MD5

36a840f681b2a1dc2a32f2b38640ffdc
SHA1

e9aea32f68776aaba21628f9a76aff94d2d339a2
SHA256

0825e44e4f08206a258952f6a95c847a8ea5d45cc3103b2af4ec71ecd3a90e34
SHA512

2247ee2059073bb6b1e120977c1b2217e921ebff13c26789aa776f14ed09a80544401f78477ee34a77fdffd00feb572053ac331b7bcfecfd2f40874396deb41d
SSDEEP

1536:dZyHRY7LnDnwXsXsMPzB+68ULPNmSi/VzTFUMwtPRW8pOGUYnhZJIWATuy+J:CHRY7LDnwXso68ULPNvUVtUMJGDvJQSP

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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4956	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4956	AcroRd32.exe
4956	AcroRd32.exe
4956	AcroRd32.exe
4956	AcroRd32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4956 wrote to memory of 4040	4956	AcroRd32.exe	108
PID 4956 wrote to memory of 4040	4956	AcroRd32.exe	108
PID 4956 wrote to memory of 4040	4956	AcroRd32.exe	108

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\36a840f681b2a1dc2a32f2b38640ffdc.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4956
- 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⤵
  PID:4040

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

Windows 7 deprecation

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