Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c7ca6073b663024…

MALICIOUS

PDF

44.3 KB Created: 2020-07-31 00:48:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 63774eca1eaac114c65cb2fd0541dc78 SHA-1: f2bbe511760d3b301ca879ca4328fb52b5a057ba SHA-256: 6c7ca6073b663024b573f3c6cb12c8df3e137a3b42c8b5b3c85b0f8c00bb87ba
194 Risk Score

Malware Insights

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

The PDF contains multiple links to a redirector service, indicating a phishing or malware distribution attempt. The ML classifier strongly identified this PDF as malicious. The document body and embedded artifacts do not contain executable scripts, but the presence of numerous external links suggests an attempt to lead the user to 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=albeniz+cordoba+guitar+pdf In PDF document text
    • http://files.hncong.org/uploads/1/3/0/7/130739366/tilumi.pdfIn PDF document text
    • http://files.dlake.net/uploads/1/3/1/4/131483445/xekav-bakinoxerexasak-vekatusufi.pdfIn PDF document text
    • http://files.sistersvillageinc.org/uploads/1/3/0/7/130776368/sesemopo.pdfIn PDF document text
    • http://files.harmonyinhogswamp.com/uploads/1/3/1/0/131070317/af87285d7cd0b3.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/1/0428/0126/6851/files/6326888367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7938/4744/files/bowedifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1954/1416/files/9395757239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7929/4358/files/84405392292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90296180399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7358/4793/files/46620519409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4160/2208/files/zopetaboxiropiwakafesewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0645/9032/files/65874554579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/8785445082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7688/6431/files/rixuwamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0644/3163/files/88713801548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7378/8321/files/tikoxipudado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0952/3355/files/nixetomuj.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 7

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_off00006ef4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF4 5204 bytes
SHA-256: e76882aa8341cb74a6c92eff117986758e2ffea0ead37ded00e4055475b9a0d3
font_01_sfnt_off000080b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80B1 10192 bytes
SHA-256: 1f18c071acb5a96505478cccc351559b0526ecefd7c85a8fe67bdf301fb6ddb0

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