Malicious PDF — malware analysis report

Static analysis result for SHA-256 9057712d51c4e5ec…

MALICIOUS

PDF

31.5 KB Created: 2020-10-05 14:54:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d65826dbe2b4bba3ea6e1957c74e0637 SHA-1: c5a8708059eecdc8e39874457bacaf5d62b08fb0 SHA-256: 9057712d51c4e5ec2fd2b2914b48b9b0d3fff7f5db34ae991355b8dba1b8eedb
192 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a deceptive lure related to 'manual wheelchair sizes' which redirects to a malicious URL. This URL is part of an SEO link farm, indicating a phishing or scam attempt. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://gettraff.ru/strik?keyword=manual+wheelchair+sizes In PDF document text
    • http://files.caninesmovingforward.com/uploads/1/3/1/3/131380456/vivogejerokevopirun.pdfIn PDF document text
    • http://files.dysonundergraduatecouncil.org/uploads/1/3/2/6/132695830/3644375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2400/1442/files/rivali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6129/4757/files/87579663810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/9326/6074/files/200_watt_solar_panel_how_many_amps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/7898/7165/files/bogizoxagoromutepafit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/4686/5576/files/lufinaxeje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/9085/7121/files/84478886007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2888/1313/files/sony_dsx-a415bt_no_sound.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5382/5704/files/ge_adel30lr_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/5313/3218/files/aimersoft_dvd_ripper_mac_torrent.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8226381-4b58-4541-8c40-2b4482ac5e9f/76870427231.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/707f4a31-9f07-4b4a-bff2-c978947a147d/muwiga.pdfIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

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