Malicious PDF — malware analysis report

Static analysis result for SHA-256 86969df5ff1d91b3…

MALICIOUS

PDF

45.2 KB Created: 2020-08-14 15:06:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3518c88e3ef15b893c46f46959f86f32 SHA-1: f3ab1526fac2b7f2894973b6e5e4aabd82740ccf SHA-256: 86969df5ff1d91b328a698d39459fa0c6a2ef8a35fdea2e6ef9108d9a7a31e74
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the document is part of a link farm or phishing campaign designed to redirect users to malicious sites.

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=color+blue+worksheets+pdf In PDF document text
    • http://femid.actionins.net/uploads/1/3/2/3/132302939/pamudugu.pdfIn PDF document text
    • http://files.crafty-counselor.com/uploads/1/3/0/7/130776058/baxivimowibevalu.pdfIn PDF document text
    • http://files.bookshelf-bookshelf.com/uploads/1/3/1/3/131381904/kikodezi.pdfIn PDF document text
    • http://files.nebulosus-severine.com/uploads/1/3/1/4/131437308/lezutufepowulijuzumu.pdfIn PDF document text
    • http://files.whitehorsediocese.ca/uploads/1/3/1/4/131438216/vuxesaramob.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/1/0431/6617/1285/files/99474823277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5197/3794/files/gavuliw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0737/6546/files/pokemon_solar_light_and_lunar_dark_pokedex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1868/9434/files/zuwixizabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2535/7206/files/bolimokuvukilopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7346/0641/files/jopodorexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6240/2967/files/persona_bergman_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/sesujalitogakisojeso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7019/2805/files/9943359379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1958/4166/files/jefuzofoxodavositimup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/soparuvuridove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3846/2372/files/sociological_research_methods.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 4

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_off00007393.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7393 5120 bytes
SHA-256: 48d412f03744840f52d803e40240f53f7f1a23256c70c1d0aeee80919ee61499
font_01_sfnt_off00008502.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8502 10352 bytes
SHA-256: 8db1df7bbe487bb8f2b5e47c4c7555dd7752baaae061e136f6b9d8d4862e993b

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