Malicious PDF — malware analysis report

Static analysis result for SHA-256 766b445ad8093fa7…

MALICIOUS

PDF

55.6 KB Created: 2020-08-17 07:07:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9b125271e41b1c94c3646778dd887be8 SHA-1: a2f1041cc80ae5206d1b84219210c68b402a0091 SHA-256: 766b445ad8093fa7302e1e3299f9af778272e8b7aadcb6ca7cfb5e26ddf69dce
194 Risk Score

Malware Insights

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

The PDF contains a large number of links, many pointing to Shopify domains, but also includes a redirector URL (https://ttraff.cc/pify?keyword=fistful+of+love+piano+sheet+music) which is flagged as malicious. This suggests a link farm or SEO manipulation tactic to distribute malicious content disguised as sheet music. 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.cc/pify?keyword=fistful+of+love+piano+sheet+music In PDF document text
    • http://files.planswpa.com/uploads/1/3/0/7/130739850/74ffde.pdfIn PDF document text
    • http://files.triciabskincare.com/uploads/1/3/0/9/130969431/sifeduroxupo.pdfIn PDF document text
    • http://files.shawnsaumell.com/uploads/1/3/2/7/132710621/0b4e79e14b6b.pdfIn PDF document text
    • http://medux.cloudnetgocanada.com/uploads/1/3/1/4/131438137/6124712.pdfIn PDF document text
    • http://files.amaneceryachtcharterscozumel.com/uploads/1/3/2/6/132683367/rizikozeriw-severabajim-kimoludosode.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/1/0447/6072/7703/files/74788431529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/2527/9648/files/paributowamar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9039/4788/files/63631847779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3462/8516/files/98534338273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0508/2780/files/domirerut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9091/2159/files/14636660658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kupenase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7173/3917/files/71520155061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6638/3770/files/minecraft_magician_mod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8117/9048/files/40855899534.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 6

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_off00008ff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF4 5172 bytes
SHA-256: 14f2a3d006a1b21d2adc17aee35a08c3d95df30540acd14263ecadeba3952df4
font_01_sfnt_off0000a16f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA16F 15320 bytes
SHA-256: db8755930c5392223ca1762b0df367989bb8fd1ca42e4fb6a06b99e7f5826002

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