Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f04eba8914a23ab…

MALICIOUS

PDF

44.8 KB Created: 2020-08-12 13:13:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 09f51785f4886ec2b48b3406fc7414a5 SHA-1: 788e5bc9a9a338a59d766eef45b27b96c1e12304 SHA-256: 4f04eba8914a23ab5365412f94a7165f5e031cb59c0b9e16341c320565bd2c5d
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many hosted on Shopify, designed to mimic search engine results for a specific query. One of these links, 'https://ttraff.cc/pify?keyword=cargoes+john+masefield+pdf', points to a known malicious redirector. This indicates a likely attempt to lure users to malicious content through a deceptive link farm.

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=cargoes+john+masefield+pdf In PDF document text
    • http://files.pcaspiritwear.com/uploads/1/3/1/3/131380850/zofadatudaso.pdfIn PDF document text
    • http://files.blackandpetrichor.com/uploads/1/3/1/6/131606408/e775e5a6.pdfIn PDF document text
    • http://files.lippsstix.com/uploads/1/3/2/7/132741551/5312261.pdfIn PDF document text
    • http://files.robertssurf.com/uploads/1/3/2/8/132814949/xemumarit_womebadedinabuz_sixalatofosip_gusisi.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/1/0434/2346/5628/files/kemapigej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2681/5903/files/kojibogukafawuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0263/4148/files/71373530442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0256/7588/files/65687180862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7622/2118/files/dank_memer_god_box.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1949/3785/files/ranakozisegavinosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2802/8312/files/fusionner_des_fichiers_en_ligne_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7708/2019/files/koxitakomazoxava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7751/0055/files/convert_to_word_doc_offline.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4677/3660/files/vista_higher_learning_login.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4117/7248/files/zezubogifopesobebavil.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_off0000718f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x718F 5436 bytes
SHA-256: ca64ada0f3e4673f5e5cde59d58b1c90d0124f347df19d49e654dc5c3c49d1fa
font_01_sfnt_off000083ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83EA 10316 bytes
SHA-256: f790596e10ef0e44b856fd79fa5b6e90e1216e67fb24fd01c38935729bd9d529

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