Malicious PDF — malware analysis report

Static analysis result for SHA-256 76a05ee43ab9d5f4…

MALICIOUS

PDF

40.7 KB Created: 2020-09-20 05:12:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e1a9cb532014f9fb5b0cc95656ce71c9 SHA-1: 404c55709f52811bdb4aa373fc080adf8ff3b5c7 SHA-256: 76a05ee43ab9d5f4189843de7512ef895e278ac724cd8a364cb87f4d29ae6f1a
194 Risk Score

Malware Insights

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

The PDF document contains embedded links that redirect to malicious infrastructure, specifically a URL associated with SEO spam and phishing lures for free downloads. The ML classifier strongly indicated maliciousness, and the document body, though garbled, contains text related to movie downloads and the redirector URL. The presence of multiple PDF links to external sites, some benign and some potentially malicious, suggests a link farm or redirection strategy.

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/wix?keyword=300mb+dual+audio+movies+free+download+for+pc In PDF document text
    • http://files.battambangparish.org/uploads/1/3/2/6/132681002/d767baf407e6.pdfIn PDF document text
    • http://files.nphsjrwolfpack.com/uploads/1/3/1/4/131408139/ninabopot.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/1/0431/2976/6039/files/53415525399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8340/6239/files/76460650358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7522/1157/files/bodafarakel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3258/4098/files/motorcycle_key_tags_canada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1540/4702/files/definition_of_economics_by_different_economists.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1621/4939/files/carrier_warranty_transfer_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4138/9720/files/ragidavaxarubokedeletipoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5366/2887/files/ok_magazine_cover_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7074/8827/files/ac_dc_greatest_hits_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1564/3031/files/rutumomatasevibigenab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4490/5884/files/mikevulurofexozux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9935/6324/files/72052989742.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_off00006012.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6012 5804 bytes
SHA-256: 83c11e11125e962e277e1258ae0b213628d3638901d48ba0b9d6067e52289c52
font_01_sfnt_off000073cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73CC 9852 bytes
SHA-256: 02dc2b6a53b06279b2bec0bff59783a40af3d92eefc3559f8df78819bd4870bd

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