Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ef90da064cfdae4…

MALICIOUS

PDF

153.5 KB Created: 2020-08-01 19:35:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 65cd8cd00597257ffeea69d9c1e0b49c SHA-1: 49ab22fb6de0441213488ce1a28ec2091d6a218a SHA-256: 0ef90da064cfdae45654b9ef6a0e4c3e914e87f02c9938b851f3c4671ec37712
134 Risk Score

Malware Insights

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

The PDF contains a link to a redirector URL, identified by heuristics as malicious and associated with SEO phishing lures. The ML classifier strongly indicates maliciousness. The embedded URL is likely intended to lead the user to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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=print+new+line+python+3 In PDF document text
    • http://files.ianburtphotography.co.uk/uploads/1/3/2/6/132696483/mapitazituferarerow.pdfIn PDF document text
    • http://files.legallysweettreats.com/uploads/1/3/1/3/131398419/e4cc46235.pdfIn PDF document text
    • http://files.inkandoakdesignco.com/uploads/1/3/1/3/131379060/gozobefupul_jowijemikarosu_mejatalowobeniv_zileruzipexuze.pdfIn PDF document text
    • http://files.fournierfit.com/uploads/1/3/2/7/132740499/lerenufewemol_kodunukura_gabep.pdfIn PDF document text
    • http://files.crystincomputerscience.com/uploads/1/3/2/8/132814239/9fba0606257b6.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/1/0434/7763/1126/files/puwenasedixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9299/2410/files/zowez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9168/1699/files/31927504739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mekokagowofulagifofid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/40368501550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/76353817288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0096/2967/files/sea_doo_owner_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0936/7454/files/89341159920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7202/7814/files/maxekalovukarim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4164/4963/files/26541095203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/86526592296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8558/6849/files/wiraguguvusewazumo.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_off000212db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x212DB 4876 bytes
SHA-256: 70b1d4148edbc8e9e4884e047471e70f1baa7360389b530b83f41a1049f29304
font_01_sfnt_off0002238b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2238B 16672 bytes
SHA-256: f30dd5d6c5822b16fa80c79671d12afc60497a33f3be2817f0da20f9f52aa7cc

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