Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e66468543acb4aa…

MALICIOUS

PDF

33.5 KB Created: 2020-08-24 05:54:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a1d3a53f574d47493e3275733157494e SHA-1: 74b5809a1da5f4fc66fc07d685e09e2fd07a90ff SHA-256: 7e66468543acb4aa304499dd93efffd53d625114b62150dfd95d10d190501705
194 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to a redirector service, indicating a link farm or SEO manipulation tactic. The document body, though heavily obfuscated, contains a URL that leads to a redirector, suggesting a phishing or malicious content delivery attempt. 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.cc/pify?keyword=you+are+my+sunshine+sheet+music+guitar In PDF document text
    • http://dopesaxoz.galleryatno6.co.uk/uploads/1/3/1/6/131606289/7225962.pdfIn PDF document text
    • http://rorupol.thecatsmeowtarotandtalismans.com/uploads/1/3/1/0/131070027/9267947.pdfIn PDF document text
    • http://wadixi.premierpoolnaples.com/uploads/1/3/1/4/131453177/pidudafuz-nasiji-gijus-laxuzu.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/1/0434/7995/7669/files/jejenekut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4892/7386/files/mutibisunax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6903/7982/files/55815826081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5681/6540/files/20668665868.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3834/2311/files/xodovajekumasoneke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2167/2356/files/golam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3366/4408/files/atal_pension_yojana_details_in_bengali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/nomevetoputekavusovafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5588/3175/files/texte_des_accords_d_evian.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_off000045fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45FB 5244 bytes
SHA-256: 2f0834735194dac5970be9b2536b0af08b3bff9940e6930a1e0216a5ebd6551b
font_01_sfnt_off000057ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57AE 9780 bytes
SHA-256: 93af65663df371e8ed7b4a1465203e17613be45c04ea3295b6b0848a02eb0d63

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