Malicious PDF — malware analysis report

Static analysis result for SHA-256 6065720109833554…

MALICIOUS

PDF

33.6 KB Created: 2020-08-13 03:10:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ccf3984a22a8943d0a86152989c7684c SHA-1: 312637e9276076ecd2cf206aa26e605b215a4740 SHA-256: 6065720109833554c7c230dded84241d80ff5159c004ad6eba17cbe9aee6df13
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector infrastructure associated with SEO spam and phishing lures. The document body, though heavily obfuscated, contains a URL that appears to be part of this link farm, suggesting the primary purpose is to drive traffic to malicious sites. No scripts were extracted, but the heuristic firings strongly indicate a malicious redirector campaign.

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/wb?keyword=adjectives%20of%20comparison%20worksheet%20for%20grade%206 In PDF document text
    • http://files.chirocure.net/uploads/1/3/1/4/131405948/rolasuralunip.pdfIn PDF document text
    • http://files.daniel12.com/uploads/1/3/1/1/131164398/giziser.pdfIn PDF document text
    • http://files.dukeengagedetroit.org/uploads/1/3/1/8/131871501/faluwis.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/1/0429/9515/5105/files/darinimojij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0392/7973/files/xegojukova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4301/0213/files/advantages_and_disadvantages_of_free_trade_agreements.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2988/3048/files/cryogenic_engine_ppt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5235/8049/files/20076008685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2912/6550/files/magibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2452/3170/files/skyrim_grand_soul_gem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3151/7592/files/nojigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4782/2236/files/23648296605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3556/4959/files/veval.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8562/6520/files/business_model_generation_drive.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_off000044f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44F8 5972 bytes
SHA-256: 87556c25442fe92debc83e7aacdf81a433731c0d7c6f9646889f524b16d3f3c1
font_01_sfnt_off0000593d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x593D 9440 bytes
SHA-256: 5ea18c5c325a58f73c491556a471024e9f440f3764b5353127c3eca9d63149f5

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