Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ebd466aafd838ba…

MALICIOUS

PDF

33.5 KB Created: 2020-08-07 17:44:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9d59d41440eb0f9fef708dc5c4cabb98 SHA-1: f016d4b28d4334807bc0c51b53f59fa57d70de13 SHA-256: 0ebd466aafd838bada27f1d40886440316623450ffe320b6e6e03674d238efc6
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to redirector infrastructure designed to obscure the final destination. Heuristics indicate a link farm and a redirector link, suggesting a phishing or scam lure. The presence of embedded URLs and the ML classifier's high confidence score support this assessment. No scripts were extracted, but the overall structure points to a malicious document intended to redirect users to potentially 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.ru/pify?keyword=andres+bello+libros+pdf In PDF document text
    • http://winanefi.canappelafarm.com/uploads/1/3/2/6/132681556/45092f90a4916.pdfIn PDF document text
    • http://files.saborlatinotacuari.com/uploads/1/3/2/6/132695329/kikizazerepekesomak.pdfIn PDF document text
    • http://files.eversdalgymnastics.com/uploads/1/3/1/0/131071035/lilebikop.pdfIn PDF document text
    • http://files.moldin.net/uploads/1/3/1/4/131453432/4614465.pdfIn PDF document text
    • http://files.booncompanionsgoatclub.com/uploads/1/3/1/3/131380728/624933.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/1/0428/9835/8432/files/20745245188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6737/4758/files/xepimapegerukelorak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9540/7269/files/audi_a4_b6_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7121/7565/files/46213895913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3023/1712/files/pinukalupefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1642/1529/files/gatidogerejuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0486/2374/files/38066904742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4645/2899/files/normalizer_and_centralizer_in_group_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2816/0413/files/nusajubanepi.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_off00004553.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4553 4952 bytes
SHA-256: 7e151939e621af982d162787db3dd1857cb0eaf174961c10c72452eba9105417
font_01_sfnt_off00005634.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5634 10372 bytes
SHA-256: 69aab424dfa4dfbc7dc7f6fdfc01880aa1ab6f2aa4b6675506a55ec332d36716

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