Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3f0447bff98b71b…

MALICIOUS

PDF

37.3 KB Created: 2020-08-07 16:29:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 208cbd163286e86ef5b381795e4b4df5 SHA-1: 5faf0abbf26ba3b2a323737198ed422c3d0389b4 SHA-256: d3f0447bff98b71b288da5f1d72cd6f5bd2c350c9c68099136789f012067a6af
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document exhibits malicious behavior through a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to known malicious infrastructure via the URL https://ttraff.com/pify?keyword=antologia+de+cuentos+colombianos+pdf. Additionally, the PDF_SEO_LINK_FARM heuristic suggests a large number of external links, many hosted on cdn.shopify.com, which are likely part of a campaign to distribute malicious content or engage in SEO abuse. The ML classifier also strongly flagged this PDF as malicious.

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=antologia+de+cuentos+colombianos+pdf In PDF document text
    • http://files.earthboundgardens.com/uploads/1/3/1/8/131871701/gotonetun.pdfIn PDF document text
    • http://files.chel.com.au/uploads/1/3/0/8/130814774/1a1cf6f5d289.pdfIn PDF document text
    • http://files.kingguideservicearizona.com/uploads/1/3/0/7/130739510/5f70d99717cef.pdfIn PDF document text
    • http://files.mentoringfutureleaders.com/uploads/1/3/0/7/130775714/webolabuw_wusiden_pubopetolejefi_lekax.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/1/0432/4350/3783/files/serifozuxamifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7412/4950/files/71394890886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3164/8661/files/vepamuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4800/8866/files/32554890632.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35209966956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2046/7869/files/sufex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7801/6421/files/43994678753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4145/5254/files/57511196461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3175/5932/files/wejepadoxofab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8115/4198/files/unir_archivos_en_uno_solo_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4366/files/13723707640.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_off00004ff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FF0 5508 bytes
SHA-256: a83d0b875d640ec86328b93339b4ef776db4115b25e132b3592ad67b52217517
font_01_sfnt_off0000629a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x629A 11136 bytes
SHA-256: c5e756ff312fa5ed0998c3d138e43602b8fc25d66d08682997eb99383160e6a0

Open this report in the interactive analyzer, or submit your own file for analysis.