Malicious PDF — malware analysis report

Static analysis result for SHA-256 aadd871673317443…

MALICIOUS

PDF

7.1 KB
MD5: 6b2b84fb51aab0d190e8fc4759d04f8b SHA-1: 5cf3ee04cca7ab8c0e0831dc2107d02abd816a44 SHA-256: aadd8716733174433c78e4566df64490e7535882037523a6e71e00546aa060a8
76 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File

The PDF file contains multiple heuristic firings indicating malicious intent, including an OpenAction trigger and the use of ASCIIHexDecode filters with exploit indicators. These suggest the document is designed to execute arbitrary code when opened, likely leveraging a known PDF vulnerability. The presence of XFA forms and AcroForm buttons with actions further supports the exploitation of PDF features for malicious purposes.

Heuristics 4

  • OpenAction trigger high PDF_OPENACTION
    PDF has an /OpenAction that launches, submits, or opens an external target
  • ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX
    Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • AcroForm button with action trigger low PDF_ACROFORM_BUTTON
    PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures