Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f46812729eebe8f…

MALICIOUS

PDF

42.1 KB Created: 2020-09-17 20:46:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 451e714ee5752c99ea6c55edbc33c4f6 SHA-1: 29173e9992d4f343b156d2c24850004e2753200e SHA-256: 3f46812729eebe8f419b3adc032635e1553525ceb4c6a4db47563f0fa9b77853
210 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating an attempt to lead the user to a harmful site. The presence of urgency and download button lures further supports a phishing or scam attempt. The primary malicious IOC is the redirector URL, which is designed to lead users to a malicious payload or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.link/wix?keyword=iron+grip+dumbbells+50+lbs In PDF document text
    • http://files.stjamesdevizes.org/uploads/1/3/0/7/130739488/juruxuduvakabusom.pdfIn PDF document text
    • http://files.fidgetkids.com.au/uploads/1/3/1/3/131398338/1025242.pdfIn PDF document text
    • http://wujikilo.tavern-boutique.com/uploads/1/3/0/8/130873982/gakefamixu_jiwizaroki_givigirefixuwik.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/1/0439/1079/1323/files/acca_f1_lecture_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5690/6918/files/19670595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pidepuwavulosetanujerepub.pdfIn PDF document text
    • https://2663d55d-8294-4842-91a1-6f9a0796e583.filesusr.com/ugd/384ea4_9b6ad729a52a4b33a59683cd9e75e135.pdf?index=trueIn PDF document text
    • https://e342bde1-4a2a-4c0f-bb4d-5b0d6475da92.filesusr.com/ugd/665c20_6e794552834e4f89b431b96736eba1aa.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0584/4390/files/asics_footwear_size_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3028/1381/files/php_force_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1802/6142/files/junakigowivafojupejad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1619/9066/files/wetokebomenorogibefowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8733/1481/files/61996115984.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 3

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_off000064a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A4 5412 bytes
SHA-256: c06a55fa447255933a0e91861de04a5d695eeff2c0423956e7ae3aeefba760f3
font_01_sfnt_off000076fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76FB 10808 bytes
SHA-256: e70737590a4109bdf8af3e2153bc91d20362896e0dc5224959f620446ec345f5

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