Malicious PDF — malware analysis report

Static analysis result for SHA-256 b47840b1cb41c708…

MALICIOUS

PDF

47.5 KB Created: 2020-07-30 07:58:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 422c073c11766c7939f98bb340e8dc1f SHA-1: 7372d67c9b61109d0fded60e3171147a673bea6e SHA-256: b47840b1cb41c708ba83b81238769a7b2f390a26bfc7b6a7bf805dc23b383eeb
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This indicates an attempt to direct users to a malicious site. Additionally, a PDF SEO link farm heuristic was triggered, suggesting the document is part of a larger scheme to generate traffic or distribute malicious content. The embedded URL is part of this redirection chain.

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.com/pify?keyword=azure+cosmos+db+tutorial+pdf In PDF document text
    • http://files.itsrealmagazine.org/uploads/1/3/2/3/132303378/bejake.pdfIn PDF document text
    • http://files.guinodesign.com/uploads/1/3/2/6/132681826/5771821.pdfIn PDF document text
    • http://files.harleyeaston.com/uploads/1/3/0/7/130776016/3666490.pdfIn PDF document text
    • http://files.thewrightauthor.com/uploads/1/3/1/4/131406736/mupidevo-pavig.pdfIn PDF document text
    • http://files.shutupandrespawn.com/uploads/1/3/0/7/130739744/xetunuvez_redoweporut_sawitatuxarixe_nulofu.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/1/0432/7846/7222/files/97796999358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4694/4416/files/rimazopefibareredixomedas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5248/2208/files/84664235366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/4349224687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zosogorimojafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/29984195002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3705/6414/files/linewovonoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/simisogasaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8212/0357/files/jufinukakil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7159/4911/files/75432839754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1991/7720/files/rawajomomixugofodowunoxob.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_off00007a68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A68 5256 bytes
SHA-256: 273c2cac28e2f5d71fb731793ba9bd633ba78a177441d144add24e49f53a34cd
font_01_sfnt_off00008c49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C49 10732 bytes
SHA-256: 4ec9b86d0e6524a12433e99f9c887716d5a573ff0e693d314e6ad0246fe41780

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