Malicious PDF — malware analysis report

Static analysis result for SHA-256 912cf282f2226ce8…

MALICIOUS

PDF

42.5 KB Created: 2020-11-06 04:01:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2a39066b819fadbd2cbfeb7fc8c65b2d SHA-1: 52f5ea8ad68285883dada9f3779a07e24823aba0 SHA-256: 912cf282f2226ce89927c056539c31bc4002d89b5b8913c0bdb7e467fa5f2a38
76 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains heuristics indicating it is a lure for free downloads, directing users to an external redirector URL. The ML classifier strongly flagged this PDF as malicious. Although no scripts were extracted, the presence of an embedded URL and the nature of the heuristics suggest a phishing or scam attempt, likely using a social engineering pretext to trick users into visiting the malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/aws?keyword=temple+of+saturn+map PDF link annotation
    • https://vapipokolodux.weebly.com/uploads/1/3/4/3/134307816/gebezewewi_bilosumuvalaf_riselagokali.pdfIn PDF document text
    • https://sisaseno.weebly.com/uploads/1/3/0/7/130776680/jawuzo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392649/normal_5f8e2bb3e3e1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386074/normal_5fa0df09cc64a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392451/normal_5f956bb890caf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389830/normal_5f8fad7927ab8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366408/normal_5f8d5c1dc779e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sinadi/aprendiz_de_brujo_libro_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/muxozuvalubi/brinks_digital_deadbolt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfa6ea51-6c7a-4173-8341-d7f5557f5472/zasunikenasoperineb.pdfIn PDF document text
    • https://s3.amazonaws.com/zugutixe/zivulunefazivi.pdfIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/71207067860.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/27450582146.pdfIn PDF document text
    • https://s3.amazonaws.com/xifabilejilab/29058744146.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/xaziwuwubimasutevosifo.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000676c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x676C 4996 bytes
SHA-256: 8a0ded0578e1af1afe93c1f689eb2d0fdbec8281ba247fea244782e7dac4aea2
font_01_sfnt_off0000784e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x784E 10772 bytes
SHA-256: 167e3e487183a1004e651027f046190e9a37beb950524ef0f908c255032db27b

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