Malicious PDF — malware analysis report

Static analysis result for SHA-256 67ec66d2ea3921e6…

MALICIOUS

PDF

48.5 KB Created: 2020-08-11 15:30:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 432e9862e22011508ef81be691521673 SHA-1: 251f214de72c288f9d8585e721a808a5dcbbdaeb SHA-256: 67ec66d2ea3921e6a82a724e6b658890b8f70ce2f4c7f17c7b18d81900fbe23b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service, suggesting a phishing or SEO spam campaign. The ML classifier strongly indicated maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of an attempt to redirect users to malicious or scam 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=bollard+detail+pdf In PDF document text
    • http://files.dynamogymclub.ca/uploads/1/3/2/6/132681891/pofidaw_duxago_lidinewotonose.pdfIn PDF document text
    • http://files.shakespeareinjc.org/uploads/1/3/0/7/130775123/6927768.pdfIn PDF document text
    • http://dexurede.melnieves.com/uploads/1/3/2/6/132681352/xapesawinaxa.pdfIn PDF document text
    • http://files.themessageofjesuschrist.com/uploads/1/3/1/0/131070171/jogovox-paxibevimu-kusuzoxina.pdfIn PDF document text
    • http://files.sarkabuchlstephenson.com/uploads/1/3/1/1/131164573/adba6edd49064b7.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/1/0435/3064/9749/files/rajibezuwine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8660/1635/files/la_pasion_segun_antigona_perez_completo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2619/4342/files/85940512002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8235/7663/files/xabolofagoxema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2139/4343/files/introductory_statistics_10th_edition_weiss.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7329/6789/files/luleraga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/kubewejusanomusokije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6231/3639/files/84891428977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9079/5934/files/obecn_a_anorganick_chemie_klikorka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6127/9896/files/35342803464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4781/3269/files/gafokovivifogafede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/vefatuduje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7102/0954/files/kerelakujeliwovam.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 2

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_off0000813e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x813E 4908 bytes
SHA-256: 514dfde09776f3e3f4dd7bf72b5a7e47f702b31b012ac2bc12c35ce71ce881f5
font_01_sfnt_off000091fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91FE 10328 bytes
SHA-256: 8eea1e0315f15ccd83568be1f30807c5863605ea7773e6fda19128384b978858

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