Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d9d993f0ff3386d…

MALICIOUS

PDF

40.5 KB Created: 2020-08-10 04:45:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 325cdf31ffdf8a2fbc9b6b83167fb6ea SHA-1: 0471d0e306b36b7bf92cde9428b3135d8afb163e SHA-256: 0d9d993f0ff3386dd873e7ffe72b49215ec90084263a03609b4a88dc8a5703c8
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the document is designed to trick users into visiting a malicious site, likely for phishing or malware distribution.

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=cardiff+university+map+pdf In PDF document text
    • http://files.easiersaidthandone-teensexualabusers.com/uploads/1/3/1/1/131164358/3939872.pdfIn PDF document text
    • http://files.englishlizard.com/uploads/1/3/2/6/132682655/02179ac7a.pdfIn PDF document text
    • http://files.eagleyoungmarines.org/uploads/1/3/0/8/130874266/4050232.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/1/0436/1791/0946/files/barthel_index_scale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/77646820816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0821/9560/files/calculus_early_transcendentals_8th_edition_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2359/6711/files/losipivegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1723/0741/files/nojagajaperuxabosakixajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7342/0963/files/archinteriors_vol_44.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5148/2278/files/wogifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7485/3793/files/bukukitabudeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7523/2153/files/mexadavurex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/campbell_biology_test_bank_free.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_off0000575f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x575F 5224 bytes
SHA-256: 2c6a0d1adb83ebf3f74793b171b728107617f78bf5b09b7a436ac8616a279a2d
font_01_sfnt_off0000691b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x691B 13912 bytes
SHA-256: db6fe3cf6c7b3a1a0f8742f8ef240b73c79403a0645ce5b2bc9d1da96f1399ec

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