Malicious PDF — malware analysis report

Static analysis result for SHA-256 776d3156887818de…

MALICIOUS

PDF

41.5 KB Created: 2020-08-24 00:12:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 71708973a7b5722e83b1294cbc4a474d SHA-1: d0bd6db705f98c47ecc6dba24bea9b3bb930e16f SHA-256: 776d3156887818de0c617ca1c1072602f1abb6d82293ab841cb0d39016440691
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it is a malicious redirector, specifically linking to a URL associated with SEO link farms and phishing lures. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=wiping+glasses+meme+template', which is flagged as a malicious redirector. The presence of numerous PDF links, many pointing to Shopify, suggests an attempt to create a link farm for SEO manipulation or to host further malicious content.

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=wiping+glasses+meme+template In PDF document text
    • http://files.frankhagancontracting.com/uploads/1/3/2/6/132681404/zatamutofineve.pdfIn PDF document text
    • http://zezuxogu.healthstarfitness.com/uploads/1/3/0/7/130775380/xidiz_neberufujuwabe.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/1/0435/1829/6228/files/convert_files_to_word_format_doc_docx_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6617/1285/files/ecological_niche_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7247/0686/files/dozepuwefebasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5242/5631/files/pdf_cdr_converter_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1828/0357/files/beauty_salon_business_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2599/6698/files/8th_grade_pre_algebra_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9655/6191/files/subobeposik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3135/5807/files/92611270643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0505/0008/files/78388455884.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8538/9212/files/pixivabusalex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/catalogo_cedulas_do_brasil_download.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_off00006428.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6428 5056 bytes
SHA-256: 554ef5e57044eadc96a5a1a2acdfa712713cf35b4e382055d673159c780158e9
font_01_sfnt_off00007556.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7556 10616 bytes
SHA-256: a3261c141f558062b439d3aa398260e83dff20fbb4b97d734f1230659a465232

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