Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dfad2fc5486bd60…

MALICIOUS

PDF

44.7 KB Created: 2020-08-09 17:09:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 37881f10892e79ce090e8f6d2f4d147b SHA-1: fa9e7ef7b6a323494567ceb712338c8ee08af9c6 SHA-256: 6dfad2fc5486bd6082b2b049746e888e87756e35ba181ffe327aaa0e2f63277a
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 (ttraff.com), suggesting a phishing or scam campaign. The ML classifier strongly indicated maliciousness. While no scripts were directly extracted, the PDF structure and embedded links are indicative of a malicious document designed to redirect users to potentially harmful content, likely as part of a phishing or link farm scheme.

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=que+es+etiologia+pdf In PDF document text
    • http://files.oeufrier.ca/uploads/1/3/1/4/131437666/fe9d45.pdfIn PDF document text
    • http://kakare.anakoulouris.com/uploads/1/3/0/7/130776177/2602812.pdfIn PDF document text
    • http://files.hoxton253.com/uploads/1/3/1/0/131070520/dexejafebo.pdfIn PDF document text
    • http://files.pronovaprojects.com/uploads/1/3/1/6/131606046/4233633.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/1/0434/1553/5774/files/sakuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6124/7129/files/fubaxazarajavesumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/26903246444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4498/6262/files/qick_sand_pyro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8503/6706/files/86201611438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2865/9880/files/tutut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9749/6488/files/xanevejilarisuzujiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xutowoterefabobenovise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8524/1245/files/40862331452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1516/6357/files/dieta_cetogenica_menu_semanal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1720/6949/files/wufiwafebigikikib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/texojorigerusoxuduk.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 5

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_off00006c2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2C 5172 bytes
SHA-256: 4edee1654c7c4daef5f23b2e1c58cc6719b08b8dde72fc360c63b77bb135c8a2
font_01_sfnt_off00007ddd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DDD 12164 bytes
SHA-256: ba51c91785350fae0b8b03445e618563390b1b18bcaba0f1a07eaa6db6cf3d7c

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