Malicious PDF — malware analysis report

Static analysis result for SHA-256 474a0bceec035a72…

MALICIOUS

PDF

50.2 KB Created: 2020-08-08 19:05:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ceec8037ed35fde83b1f23c765d34272 SHA-1: bffd716798c764b18601140d31fb9b4840758761 SHA-256: 474a0bceec035a724b110814adfd780f3339530da8996359f793764ff8a729d6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm designed to improve search engine rankings. One prominent link, https://ttraff.ru/pify?keyword=bouwbesluit+praktijk+pdf, is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for phishing or malware distribution.

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.ru/pify?keyword=bouwbesluit+praktijk+pdf In PDF document text
    • http://files.orderdipped.com/uploads/1/3/2/6/132695418/22435.pdfIn PDF document text
    • http://files.exoticfashion.online/uploads/1/3/0/9/130969278/sidajezuxe.pdfIn PDF document text
    • http://files.illuminatingideas.org/uploads/1/3/1/4/131438823/tasexogejotemod_safutedapewano.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/1/0432/6414/7609/files/todivarusajoretivageg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4964/7254/files/descargar_chaotic_sword_god.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9526/1348/files/81546123198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1354/4863/files/52254498603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0841/6165/files/dora_the_explorer_backpack_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6467/1906/files/aniara_book_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0686/8126/files/anemia_por_deficiencia_de_acido_folico_y_vitamina_b12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6653/8649/files/97069165473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0670/9159/files/iodine_value.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6435/1130/files/28724464559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0565/2637/files/agile_bertrand_meyer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9596/4328/files/ignou_assignment_first_page_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9928/1821/files/bernoulli_s_theorem_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8808/5145/files/88881013686.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 7

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_off00008a0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A0C 5456 bytes
SHA-256: 49a30e12c8d64c16fe3f8fc270edb3290a776d9215e38327af78d87312d3aad7
font_01_sfnt_off00009cb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CB6 9052 bytes
SHA-256: 943f9e813b5d1631901ac29cca2df83ce0e35b32a7c68006cc614749eca961b0

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