Malicious PDF — malware analysis report

Static analysis result for SHA-256 09d2e590bc62df9c…

MALICIOUS

PDF

41.5 KB Created: 2020-08-05 10:44:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d77b242c5020593116218de4a54fcf8b SHA-1: 59b372be1ec2eeb6a3dfc886180c0b4b0b3576a6 SHA-256: 09d2e590bc62df9cbdf8760c36d9422fd3dda86b1585c7483bc17fb9c66fa9b1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to an SEO redirector designed to phish users under the guise of providing a medical guideline. The primary redirector URL is https://ttraff.com/pify?keyword=easl+cirrhosis+guidelines+2020+pdf, which leads to further malicious infrastructure. The ML classifier strongly indicates maliciousness, and the presence of a malicious redirector link confirms the intent to lead users to harmful content.

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=easl+cirrhosis+guidelines+2020+pdf In PDF document text
    • http://files.nanolab.info/uploads/1/3/1/3/131379749/befuraxigufero.pdfIn PDF document text
    • http://files.redmondmathblog.com/uploads/1/3/2/3/132302923/8512698.pdfIn PDF document text
    • http://files.mrsrussellsclassroom2018.com/uploads/1/3/0/8/130815664/kimonerukutori_ginabaximibu.pdfIn PDF document text
    • http://files.knealenotarypublic.co.uk/uploads/1/3/1/4/131437225/dd0b561683.pdfIn PDF document text
    • http://files.pineridgereconciliationcenter.org/uploads/1/3/1/4/131437626/4139082.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/1/0428/7230/7875/files/geturimowetowikivipaxag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8389/0850/files/87575432187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/5071/7604/files/rocky_horror_picture_show_soundtrack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0041/9736/files/72075018813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5102/3526/files/nesarevozafigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5516/9182/files/pandas_remove_nan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/emuparadise_workaround_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6745/7188/files/90758366961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6881/7569/files/76182053209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8950/2110/files/90360043112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6486/0575/files/36710619892.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_off0000629f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x629F 5648 bytes
SHA-256: d097cb5328dad01f4e42693b069b1ef6f03f5f0d3933ab7d05bc68c2e2084e30
font_01_sfnt_off000075d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75D5 10432 bytes
SHA-256: bff646d57c0d9815e9c6d3e1a70f016d603f1955e60689127d606d281d48ee3b

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