Malicious PDF — malware analysis report

Static analysis result for SHA-256 5af5fb9de249a54a…

MALICIOUS

PDF

44.5 KB Created: 2020-08-23 07:16:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c491cf35d2135738d5940d19c097e348 SHA-1: 5437ed110cff33bba92f5a5d728642f1aca7a827 SHA-256: 5af5fb9de249a54afa30fcab3fc43e33b68b68c2a3845dbd3c674bf1a1c18a79
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including a critical redirector link to 'ttraff.com', disguised with a movie title lure. This suggests a phishing or malware distribution attempt. The ML classifier strongly supports the malicious verdict. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent, likely to redirect users to a malicious 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.com/pify?keyword=accepted+2006+movie In PDF document text
    • http://gazudu.xingmc.de/uploads/1/3/1/0/131070718/6b6fa.pdfIn PDF document text
    • http://puvuxifef.sky2000.co/uploads/1/3/0/8/130874493/bb7adbfc2bb8cb.pdfIn PDF document text
    • http://files.val6heat.com/uploads/1/3/2/7/132740951/paxifuzo-kotet.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/1/0428/3822/9158/files/93906816414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5678/3772/files/ceptam_9_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/ruzipumalufus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9885/7891/files/bilonizumubesukidinij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9139/2664/files/5375088815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7812/3674/files/vojalajij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78046530146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9291/8937/files/sorebabunozeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1330/8325/files/lukavakadupef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1433/2309/files/xosegutijidawewolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7958/1352/files/15615361067.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/5652/1367/files/setugivufijolag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6286/1730/files/tisoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6384/4767/files/exempt_reportable_fringe_benefits_examples.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 1

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_off0000700d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x700D 5180 bytes
SHA-256: 120f2f53a150deddc40205daf3ec3c3405ed33096cba32e2127317ade7143535
font_01_sfnt_off000081a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81A9 10444 bytes
SHA-256: dc2fc3bfbb8f2b5111a71b63798474ba6cddc48b6791619bb0b622b712953a2b

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