Malicious PDF — malware analysis report

Static analysis result for SHA-256 262a2f72e4258c40…

MALICIOUS

PDF

45.2 KB Created: 2020-08-10 00:57:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 771c90fdc5550c503982746cf7738a90 SHA-1: bd30f1ef5d6ad0be7b11a7228b37e8acdd92459f SHA-256: 262a2f72e4258c40e5a216e376357140566ade239cbca6d8468bb5e071aeb065
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a mass of external links, many of which are SEO-optimized and point to Shopify domains, suggesting a link farm or content stuffing technique. One prominent link, disguised as a free ebook download, redirects to a known malicious redirector URL. This indicates a social engineering attempt to drive traffic to malicious infrastructure.

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.ru/pify?keyword=essential+oil+safety+robert+tisserand+pdf+free+download In PDF document text
    • http://files.lilysparkles.co.uk/uploads/1/3/0/8/130874370/lulubuveganan.pdfIn PDF document text
    • http://files.redcliffemusicaltheatre.com/uploads/1/3/1/6/131637701/a0bc413c31b5f9.pdfIn PDF document text
    • http://files.millersaddlesandsilver.com/uploads/1/3/0/7/130740118/4822028.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/1/0431/3504/1693/files/wimusokefodilajapixexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1700/2405/files/adjectives_word_formation_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87074842841.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/5822/9411/files/harvest_moon_gba_rom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8333/3786/files/96258600853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6213/2897/files/97635118779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0081/6028/files/fall_leaves_border.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8288/4006/files/vebibafivudevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/5762/2689/files/transparent_hex_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9476/8802/files/23310436748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7837/6853/files/jepowofoverutumel.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_off0000713a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x713A 5328 bytes
SHA-256: adc72c8fb2d02a4ce24cb8464fb1630d1aa83700927305166aea9ff56c982541
font_01_sfnt_off0000837e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x837E 10540 bytes
SHA-256: ad3ee9c900cd631fc33ea158bde19d1242ab5b03c74c3eb5039ab39cd7f3f536

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