Malicious PDF — malware analysis report

Static analysis result for SHA-256 d95cac0e015b9b71…

MALICIOUS

PDF

41.1 KB Created: 2020-08-10 16:48:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bf50e3ca2512cac2adeeabd2aedfc2d8 SHA-1: e5969713f9ec7379441c8f4d1b9c6027afbd80a5 SHA-256: d95cac0e015b9b7168a8f9546bbae8ee0aaf8f30a6fe29790befe8b83f7d4d67
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link to `ttraff.ru` is flagged as a malicious redirector. The document body, though heavily corrupted, contains text fragments suggesting it is disguised as a 'math teacher resume pdf' and includes the malicious URL. This indicates the PDF is designed to lure users to malicious infrastructure, likely for a phishing or malware delivery 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/pify?keyword=math+teacher+resume+pdf In PDF document text
    • http://files.wilderblubordercollies.com/uploads/1/3/2/6/132681307/rakopagobufep.pdfIn PDF document text
    • http://files.maggiebathory.com/uploads/1/3/0/7/130776075/vumumizof.pdfIn PDF document text
    • http://files.artizaninternational.com/uploads/1/3/0/7/130739593/nipekoke.pdfIn PDF document text
    • http://files.afpneia.org/uploads/1/3/1/0/131070336/463290.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/1/0431/0922/0501/files/wevuvigivapudaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2285/9944/files/xefofagilerenomarateto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9889/8592/files/37429819335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8588/1759/files/lg_remote_codes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3273/1038/files/31686983438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7175/6698/files/fekinarasipeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7871/6311/files/alimentos_ricos_en_vitamina_d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1042/4993/files/fixirofivojoluzurodivulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5371/7406/files/83581856314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7414/1864/files/ln_in_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/79098835214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/9402/1030/files/koxominuro.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_off0000612c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x612C 5368 bytes
SHA-256: 2dc484a2183b16f0b764a8118e8552385d07e584cd49a4874e429a9cd621dbbb
font_01_sfnt_off00007351.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7351 10664 bytes
SHA-256: 6d727e012ecdec88235ca602b4089ef17d3a0e38ac679115585e5471178dcac8

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