Malicious PDF — malware analysis report

Static analysis result for SHA-256 db39d64107c2c1a6…

MALICIOUS

PDF

32.5 KB Created: 2020-08-15 20:45:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a6d3deca94b4193b35570fa241fd3e14 SHA-1: 5db84a4ed616480d693fdff5d2b4cf331722c599 SHA-256: db39d64107c2c1a682da492b4563800b4047a57d54e670492b502157537176b9
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The document body, though partially corrupted, contains the URL 'https://ttraff.com/pify?keyword=halloweentown+1998+full+movie', which is a known malicious redirector. The PDF also exhibits characteristics of a link farm, embedding numerous external PDF links, many hosted on cdn.shopify.com, likely to manipulate search engine results or distribute further malicious 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=halloweentown+1998+full+movie In PDF document text
    • http://files.hushupclothing.com/uploads/1/3/1/1/131164202/5522390.pdfIn PDF document text
    • http://files.clarinetrepairs.org/uploads/1/3/1/0/131070476/ruwujirasalojejela.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/1/0449/0035/2167/files/zaruwejijupugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4687/1974/files/76682170338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7319/files/vilefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8812/4830/files/vejaborotilaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3876/9303/files/favapumabaforusowijogiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/99246421237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8511/0175/files/firotawonosas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9633/2705/files/adam_smith_economics_book.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 7

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_off000042ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42CE 5152 bytes
SHA-256: 3ca9906dfb4a41f2ca5b1f5e758604d30c81b3d9114fb85de87c051cd27726de
font_01_sfnt_off0000546c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x546C 9708 bytes
SHA-256: 8d682f93448e5cf474b31bce6ae1be9d81cb9af4972f7ba5f74da5b60f532ca0

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