Malicious PDF — malware analysis report

Static analysis result for SHA-256 a63233f1e29bedce…

MALICIOUS

PDF

122.5 KB Created: 1970-01-01 03:00:00 +03:00 Authoring application: FPDF 1.85
MD5: 7a6651247243c3addc23e447d92d70b8 SHA-1: d4b5ddcf414c469cb990c50e89af79b440d15770 SHA-256: a63233f1e29bedce5565c2e2ce2404b39da66042f2d3b01b577eedac7d63c719
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file is identified as an image-only lure, a common phishing technique. It contains multiple invisible links pointing to 'http://45.8.146.200/RSP.zip', which is highly suspicious and likely serves as a delivery mechanism for a malicious payload. The heuristics indicate a deliberate attempt to obscure the malicious link and deliver a payload file.

Machine Learning

  • Nyx PDF Classifier clean score 0.0277

Heuristics 4

  • Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LURE
    PDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 1 text block(s), carries a click-outward action, and is only 122 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://45.8.146.200/RSP.zip