Malicious PDF — malware analysis report

Static analysis result for SHA-256 f718a383313ab6b0…

MALICIOUS

PDF

48.5 KB Created: 2020-11-01 23:14:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fde0713b5674afeb4e42ae235c480d77 SHA-1: 5b839fc225c64dd8292e0e3e87b0e8db8fe8e293 SHA-256: f718a383313ab6b0275b2eaac1116f9c62f7b57c652e5afe78341a3b12d39b31
134 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, identified by multiple heuristics as a malicious redirector. The ML classifier also strongly indicated maliciousness. The primary lure appears to be a recipe topic, likely to disguise the malicious intent of directing users to a potentially harmful website.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.club/123?keyword=romesco+sauce+nut+free In PDF document text
    • https://vibebivenef.weebly.com/uploads/1/3/1/4/131412032/2f8ca042a26b.pdfIn PDF document text
    • https://nadazilagola.weebly.com/uploads/1/3/4/3/134314388/600329.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369163/normal_5f88c0dbec948.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373755/normal_5f89f64b0f959.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371799/normal_5f8abaa885344.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366367/normal_5f87182dd68a9.pdfIn PDF document text
    • https://bedakowunuva.weebly.com/uploads/1/3/4/3/134342711/mejiridesog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380531/normal_5f9c56674a03c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382953/normal_5f914fe5c7447.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/643d403a-62bb-4b73-8c59-6c2389ec5449/76825034782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4132/4184/files/58982350881.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c652ea8a-e280-4f15-8d48-3629c7234865/zuvigenabugor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b494b831-082e-4257-8c67-8fbcb7d29964/44395118886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/9510/8000/files/csulb_library_research_databases.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_off00006aa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA6 5004 bytes
SHA-256: 8fad3e1b803773fefca05865c5c43bc32b16faf59ef6a2a67057aa8746fb2557
font_01_sfnt_off00007b97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B97 10620 bytes
SHA-256: 55fce54689fff334e1723879de674658d38bfbc6a0b6cbd98bd7e7139445415b
font_02_sfnt_off0000a019.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA019 16092 bytes
SHA-256: ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073

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