Malicious PDF — malware analysis report

Static analysis result for SHA-256 487c9155d2435537…

MALICIOUS

PDF

42.0 KB Created: 2020-08-14 14:50:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 253d19c953a5d0a07943724d24a11974 SHA-1: 7797a4de281f77d16490c9d3a293cce5c2d39595 SHA-256: 487c9155d2435537b4866261b12e94957eab89148d60b2e2d5667f3a19fcff3d
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body text, while appearing to be a worksheet, is likely a lure to disguise the malicious intent of redirecting users to potentially harmful sites. The ML classifier strongly supports the malicious verdict.

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.com/pify?keyword=relative+pronouns+worksheet+grade+6+pdf In PDF document text
    • http://files.carsontidwell.com/uploads/1/3/1/4/131438249/mumiv.pdfIn PDF document text
    • http://files.dakotahurley.com/uploads/1/3/0/8/130814258/tabetisifekibi_pibemil.pdfIn PDF document text
    • http://files.manuseva.org/uploads/1/3/0/7/130775229/sudepuwati-jomina.pdfIn PDF document text
    • http://files.foryourmilitarymarriage.com/uploads/1/3/2/6/132681836/2f4ef6d.pdfIn PDF document text
    • http://nojos.robertjrevell.com/uploads/1/3/1/4/131454165/xuzesudux-dafonuwotibiz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6453/2900/files/pdf_to_word_file_converter_online_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7709/8913/files/kagonekarusibezuxaxozal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/calculus_of_variation_by_a_s_gupta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5135/1207/files/xomekikipazabedemeviwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1096/5147/files/forevupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9877/6487/files/30010080551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0928/6042/files/91184993861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4976/2459/files/wogeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6097/6021/files/58803772591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8879/6053/files/70729381380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9072/9377/files/jidun.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000580e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x580E 5564 bytes
SHA-256: 2acf451ab38c717760b1df6c43b7c676dd2f12279c3c27b5bf1d6230117974f1
font_01_sfnt_off00006b0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0B 9940 bytes
SHA-256: 18c88067186a945fd56e3116d3269fcabc9cffbd627b5adcbc29e60376c6955b
font_02_sfnt_off00008d15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D15 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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