Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ae6af00dcc665ef…

MALICIOUS

PDF

51.0 KB Created: 2020-08-12 01:06:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a0f335cc7d6286d044baa9257d340ac6 SHA-1: d45f8a757dda4b6c524cee95181119a7d0e30f14 SHA-256: 0ae6af00dcc665ef7055f0e7a71e58448468d552f0fba60a554ba5e0c6fef9e2
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The document body and heuristics suggest a phishing lure for a "free English course" which is a common social engineering tactic. The ML classifier also strongly indicated maliciousness.

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=cours+d+anglais+complet+gratuit+pdf In PDF document text
    • http://files.eceaministries.org/uploads/1/3/0/7/130775372/fbf32e0.pdfIn PDF document text
    • http://nanava.createweddingsandevents.com/uploads/1/3/0/8/130874431/visozuf.pdfIn PDF document text
    • http://files.jillianabrownphotography.com/uploads/1/3/0/7/130739513/1d3abcb3.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/1/0437/7149/4554/files/74827053738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7665/2949/files/to_infinitive_bare_infinitive_gerund_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6381/0975/files/fulopigugaxujejifubok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9118/9157/files/47856589242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kamunikizesow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7723/7920/files/bhakti_yoga_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9365/5716/files/postgres_show_indexes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8144/0168/files/frecuencia_cardiaca_ejercicio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6769/4490/files/54601344178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5725/8395/files/chemistry_book_class_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6525/3792/files/21322723311.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8814/2743/files/xelikawogisiponipewod.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006fd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD8 5380 bytes
SHA-256: 563fef592b51cbec05e2d072e9be4c07eb81ac68c9b55e80837c7c40f68c717f
font_01_sfnt_off0000820e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x820E 12088 bytes
SHA-256: be77a1553a40c04ef4d8e14cfd3b35f158a3e290c1e0c9a63145715ca8152666
font_02_sfnt_off0000a794.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA794 16312 bytes
SHA-256: 531e37f64a2e7dc3bfb257675d9e6c644c7b1597f33ba9a969cd005a7ed65660

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