Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a6e12ce1fa18e64…

MALICIOUS

PDF

44.6 KB Created: 2020-08-03 14:30:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ebf68b9058e01bc570dd53de61361307 SHA-1: 051ce89a937c3d18e66d9ee8791d5f1bd88a82bc SHA-256: 7a6e12ce1fa18e64306e28b9b5284b44301c0d36615517cb9b0f61d6b93718b9
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, including a primary redirector at 'https://ttraff.ru/pify?keyword=lider+autocr%25C3%25A1tico+pdf'. This indicates a likely attempt to direct users to malicious or phishing content. The presence of a large number of external PDF links suggests an SEO poisoning or link farm tactic to obscure the true malicious destination. No scripts were extracted, but the embedded link structure is sufficient to infer malicious intent.

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=lider+autocr%25C3%25A1tico+pdf In PDF document text
    • http://files.reservoirfoodpantry.org/uploads/1/3/0/7/130775080/botanifudup-nitifufo-pivajexoz.pdfIn PDF document text
    • http://files.stillpointatbeckside.com/uploads/1/3/1/6/131606011/wefugijux-zulapakilojidu.pdfIn PDF document text
    • http://files.donalbury.com/uploads/1/3/0/8/130815014/6139423.pdfIn PDF document text
    • http://files.thegauge.us/uploads/1/3/0/7/130776167/kobefelutakam.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/1/0430/7084/9181/files/nelut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0458/3318/files/star_wars_despecialized_download_kickass.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6418/0390/files/.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4029/1486/files/61020504402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/28928422776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0688/5020/files/clash_of_clans_on_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6844/1254/files/pofififokuvurafuxulix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dedapefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4736/0424/files/jobitagasevela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4089/7174/files/3834224683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4507/5609/files/buritixizaxawad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5093/3156/files/vopeduluf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/zozivisowutesiveb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2934/9030/files/wowuvojogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4000/6559/files/wesubawosenob.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F27 5112 bytes
SHA-256: bbf82732e9b26d4f9ddc83a9ba2273ab8d592ac25710f9ce5245310c97d969d7
font_01_sfnt_off00008015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8015 11032 bytes
SHA-256: 74f4dcc4d4669c9351c539752b1feaf61bd6923e08594123aeae198865de2779