Malicious PDF — malware analysis report

Static analysis result for SHA-256 11f44a2fbdef533d…

MALICIOUS

PDF

64.8 KB Created: 2020-08-06 07:09:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48eddd6789ccafdb133c673ab9e6e425 SHA-1: 5dde36a1dad68d3d5506a58b7e94d0626289d9de SHA-256: 11f44a2fbdef533d899d8687a9989225e49b36cdd32e64d7e72a2804333f6279
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDFs, many hosted on Shopify, suggesting a link farm for SEO manipulation. One critical heuristic identified a redirector link pointing to 'ttraff.cc', which is known malicious infrastructure. This indicates the document's primary purpose is to redirect users to malicious content, likely for phishing or malware distribution. No scripts were extracted, but the embedded URLs and heuristic firings strongly suggest a malicious intent.

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.cc/wb?keyword=empresas%20publicas%20en%20bolivia%20pdf In PDF document text
    • http://files.leximayde.com/uploads/1/3/2/7/132740845/xumilivalosoze.pdfIn PDF document text
    • http://files.partybartendersandwaiters.com/uploads/1/3/2/7/132710679/95945538f19.pdfIn PDF document text
    • http://gadevu.thesurreysaddlery.com/uploads/1/3/1/4/131438464/a498eaae.pdfIn PDF document text
    • http://files.zmagazine.co/uploads/1/3/1/3/131380058/musiwaxupazuf_bonipikuleme_fumadi.pdfIn PDF document text
    • http://files.frankfordchargers.org/uploads/1/3/2/7/132740439/boxagemox.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/1/0430/8841/2836/files/gamezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9818/6663/files/99305649286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8709/4177/files/vibariwukibugul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9819/3573/files/croix_kabbalistique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8709/4177/files/55139088823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/91128025827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6285/3794/files/jibokokipidibomireriz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5629/0206/files/burket_oral_medicine_8th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9367/1588/files/6474024953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7692/0220/files/virajibuxuriwov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8684/7903/files/67363016368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2919/8998/files/automate_the_boring_stuff_with_python_ebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29942388251.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bbb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBB2 5456 bytes
SHA-256: d9ce56e29ce1eb3399d2c1f3994fbdce7ba6f604a203c93551a53b7562781300
font_01_sfnt_off0000ce2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE2D 11724 bytes
SHA-256: f51151bdd3d38c7f1d2191bd70cb47b7e5a07446e0a48446f73b5ad96038c34b