Malicious PDF — malware analysis report

Static analysis result for SHA-256 464cbf16d7129ccc…

MALICIOUS

PDF

42.0 KB Created: 2020-08-05 06:17:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 412263b847271ab89108bb819b6eeed4 SHA-1: 5542d00dc6dcee52776f386a64e425cfdf3a3954 SHA-256: 464cbf16d7129ccc9054ce6506291e1d7b07d0b7b56af36b8bb5d643c4985732
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The document also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The primary malicious URL is a redirector that appears to be part of a lure for downloading a PDF, likely to lead to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.cc/pify?keyword=barcelona+tourist+map+pdf+download In PDF document text
    • http://files.nltbiblecollege.org/uploads/1/3/1/8/131856108/7450457.pdfIn PDF document text
    • http://files.naturallyprettynails.com/uploads/1/3/2/7/132710679/ninekuwowafoj-fagoxip.pdfIn PDF document text
    • http://tibipoko.finksdeli.org/uploads/1/3/1/6/131607131/4bebd87d8dd39dd.pdfIn PDF document text
    • http://files.shadysideofthetracks.com/uploads/1/3/1/4/131406762/9744250.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0160/9366/files/70173502726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9746/4731/files/reference_images_for_3d_modeling.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6674/4216/files/79592348717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1817/4107/files/157506206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/53558345196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0843/4081/files/81693820601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4711/5157/files/kakikesafubigatukiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuxopikuxoxixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1540/4695/files/40613478131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/webomobituwisumepepaxifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1392/1189/files/washington_fly_fishing_forum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2758/6457/files/vumenafukavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3040/4502/files/apostrophe_worksheets_with_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9360/6056/files/zofera.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000644c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x644C 5444 bytes
SHA-256: 44fb24ec6c60cdea2218f0e43a8d391320999f6c7f1bf9927a7c0525340f2252
font_01_sfnt_off000076ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76CA 10628 bytes
SHA-256: 129e2d8e0f22f94e27852c118c08ef8fcdabf581e119f8e7b5b76b76a3283c8f

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