b3a1df1f6d88f628fe4a3d75ad724daa53c10401a498904f8f6d34fbdebc71cb

Analysis

max time kernel
164s
max time network
174s
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, 13:03

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General

Target

372b4ada5cb5fa09d7dfe45514f2c300.pdf
Size

86KB
MD5

372b4ada5cb5fa09d7dfe45514f2c300
SHA1

813eb7308ac52a42d2d70817401d778c6d2cacfb
SHA256

b3a1df1f6d88f628fe4a3d75ad724daa53c10401a498904f8f6d34fbdebc71cb
SHA512

c5b75bad4eaf7894c4dbbc449ac9dbfffd7ab7433bce2fc35e7190531a2e4b03eaed767ff7504e4f3d0217d17bdb39eec19ae627ae0f38bdf93ad930222d7c09
SSDEEP

1536:hcM1HEmUFwqdroD0SJdXSUZM/dstgB8U38y+Y+JWCsoLp3n3WspORatC:+MRKdrojJFmdsgB5XQQoLp3nmR9

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

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2844	AcroRd32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2844	AcroRd32.exe
2844	AcroRd32.exe
2844	AcroRd32.exe
2844	AcroRd32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2844 wrote to memory of 4160	2844	AcroRd32.exe	109
PID 2844 wrote to memory of 4160	2844	AcroRd32.exe	109
PID 2844 wrote to memory of 4160	2844	AcroRd32.exe	109

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\372b4ada5cb5fa09d7dfe45514f2c300.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2844
- 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:4160

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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