01e2cf5f1de4c0e8cbc4fe60bd1762204254218c0a07249d8cc82355c7eb6a04

Analysis

max time kernel
202s
max time network
220s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 02:08

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General

Target

4b9ab4e3e414a7fc6b12a315b2b6bafd.pdf
Size

49KB
MD5

4b9ab4e3e414a7fc6b12a315b2b6bafd
SHA1

4e303dc74cd6629848e798231ba371bdc017e18c
SHA256

01e2cf5f1de4c0e8cbc4fe60bd1762204254218c0a07249d8cc82355c7eb6a04
SHA512

c0b20080c28161ac1e6ceb633d1ed2c40b56fbe9220a3920f37bb1177395892897bb6e0e8a5e23da0c8eb2d8778d90d52d9e7baf807f2606421b99f215dd3319
SSDEEP

1536:R1/zzDKnS5CqmwZNMFG4gepy3ozrcqx+GxETzPi88:rzgFq9ZCG4ry3aP+GyTzKD

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-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	AcroRd32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
212	AcroRd32.exe
212	AcroRd32.exe
212	AcroRd32.exe
212	AcroRd32.exe
212	AcroRd32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 212 wrote to memory of 3292	212	AcroRd32.exe	97
PID 212 wrote to memory of 3292	212	AcroRd32.exe	97
PID 212 wrote to memory of 3292	212	AcroRd32.exe	97
PID 212 wrote to memory of 3256	212	AcroRd32.exe	101
PID 212 wrote to memory of 3256	212	AcroRd32.exe	101
PID 212 wrote to memory of 3256	212	AcroRd32.exe	101

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\4b9ab4e3e414a7fc6b12a315b2b6bafd.pdf"
1⤵
- Checks processor information in registry
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:212
- 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:3292
- 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:3256

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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