Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a2dd1bdcf55fe66…

MALICIOUS

PDF

43.7 KB Created: 2020-07-24 18:43:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1fd6c0905ab6b8aa3754f5588e506779 SHA-1: cd6e1bd1d06f39b11536773e7dae93243fd1635e SHA-256: 0a2dd1bdcf55fe669518db00c48ded201efe43d2716239876389fce22bf278cc
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 like `ttraff.ru`. The heuristic `PDF_SEO_LINK_FARM` indicates a large number of external links, suggesting an attempt to manipulate search engine results or distribute content through a link farm. The ML classifier strongly indicates maliciousness. While no scripts were extracted, the presence of malicious redirector links and the SEO link farm pattern strongly suggest a phishing or malware distribution attempt.

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=ignite+flyff+leveling+guide In PDF document text
    • http://files.jpvahelloworld.com/uploads/1/3/0/7/130739971/21252ef18e.pdfIn PDF document text
    • http://files.peakhealthcaremaryland.com/uploads/1/3/1/4/131406816/rizapisopasiraluzoga.pdfIn PDF document text
    • http://files.stacygardner.ca/uploads/1/3/2/7/132740620/wurusexexabiluboku.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/1/0428/8688/9625/files/patidiwaxirafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5965/8398/files/32935052595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1251/4201/files/57327311357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/gasadamowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5069/5830/files/jifidipufesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8166/2628/files/40122229546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6700/6364/files/62276301060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6572/9429/files/lejafif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3103/5032/files/37550647864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5734/7749/files/32182857873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8283/3308/files/vimatizidukunevoxawumonut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5647/1959/files/8623439615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8746/9471/files/22437273359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5778/2690/files/41166834464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/30513774709.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_off00006e56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E56 4464 bytes
SHA-256: c32f52d07b582bda20f0317c3c12d5a951f60559770da0e0d2e35c000477aff4
font_01_sfnt_off00007d9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D9F 10676 bytes
SHA-256: 0da6da1a8a21a98849f76112006592cb59ca9205c413a79b459a56a345d3373c

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