Malicious PDF — malware analysis report

Static analysis result for SHA-256 65ea3c585934739c…

MALICIOUS

PDF

43.3 KB Created: 2020-08-23 03:40:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d2efc7fb60d77c1ab3f2aff1460ac4e6 SHA-1: 7dbd5fd54a318da010c67ce1b0feefd9b1bb968a SHA-256: 65ea3c585934739c0482f92fd766674ecd81bd7628eb0b782f3c286f8e4da1b0
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text that appears to be a lure for a maritime charter contract. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be a phishing attempt using a malicious link embedded within the PDF.

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=contrat+d%2527+affretement+maritime+pdf In PDF document text
    • http://files.southplainsgentx.org/uploads/1/3/0/7/130776164/0895d7e415fb4.pdfIn PDF document text
    • http://sevubosa.northbeavercreek.com/uploads/1/3/1/1/131164211/bumikikozuguj.pdfIn PDF document text
    • http://files.pinckneymusic.com/uploads/1/3/2/6/132681851/famuposuxolobasuxeli.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/1/0437/6671/0433/files/coordinate_geometry_9th_class.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/55166802931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0513/2445/files/43001776629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5881/3341/files/restaurant_business_plan_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nuruge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7523/2153/files/73949988396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8508/4310/files/56388458740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4681/3344/files/the_new_bartender_s_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7791/9129/files/saxon_math_course_3_teacher_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5217/9364/files/nevebogeboroximunonob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8338/2427/files/45389412426.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 3

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_off00006c96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C96 4916 bytes
SHA-256: 3e4da9a23e77e40ea463117a228da41477fa230f86068365baa388cee7109ffd
font_01_sfnt_off00007d3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D3E 9924 bytes
SHA-256: 344bb8e1012ead4eb2c37c24c8ac2585b4d042eb63ead2598ffdddea14ded453

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