Malicious PDF — malware analysis report

Static analysis result for SHA-256 0721736541e722bd…

MALICIOUS

PDF

42.1 KB Created: 2020-10-06 18:06:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e32b304763b322542964127e9da93060 SHA-1: 468e43b375276155a21a5cd1d1b89d86ec76171c SHA-256: 0721736541e722bdec06d2f59eee2c284f34a53ca0b9f70d748510ee2a144c2e
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains embedded links that point to a redirector infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The document body, though heavily obfuscated, contains text that appears to be a lure for a "Troy bilt mower tb200 manual". The primary malicious URL identified is https://ttraff.club/pify?keyword=troy+bilt+mower+tb200+manual, which is likely used to deliver a secondary payload or redirect to a phishing site.

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.club/pify?keyword=troy+bilt+mower+tb200+manual In PDF document text
    • http://files.basilelimeade.com/uploads/1/3/1/4/131437401/e06d96.pdfIn PDF document text
    • https://site-1037275.mozfiles.com/files/1037275/93631650178.pdfIn PDF document text
    • https://site-1043691.mozfiles.com/files/1043691/89095556885.pdfIn PDF document text
    • https://site-1036742.mozfiles.com/files/1036742/rewupumenufem.pdfIn PDF document text
    • https://site-1037219.mozfiles.com/files/1037219/37715292153.pdfIn PDF document text
    • https://site-1036826.mozfiles.com/files/1036826/43255211540.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6fb5fb4-ded3-4e56-ab67-a3f3cb1505cd/karivozosobuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10a7e811-b3f9-4a28-985a-041809f2a2ce/86185734195.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c85c28e-7df3-4881-ab12-d5173ae0c7cf/95274919899.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3caaa40-7e63-4dc1-9ff0-5d124a7ca29f/7690158945.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4df74036-2f51-4074-a98f-e9fcdd0ffe9c/radowifonagugewo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25d6fafd-9d5b-4dd8-9f5b-f5ae47c9c959/2940445861.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1069c252-dc8d-4327-b88c-74b1673e2354/xavenirumipubesi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07519647-2ce1-431e-92e4-a2b280b2642c/zekevu.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 2

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_off0000671a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x671A 5208 bytes
SHA-256: 366d620b41c1281bc9e2a0843bd0a1bca78596368b82eaa7d07cac581f1657e3
font_01_sfnt_off000078ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78CE 10256 bytes
SHA-256: 2b400e3443ac0c6425fb32ed4b87d1206bb848bbe94542cce06bc098e0218ded

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