Malicious PDF — malware analysis report

Static analysis result for SHA-256 76d532145c213839…

MALICIOUS

PDF

46.8 KB Created: 2020-08-20 07:05:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e61dafac85f9d82562e92a168913ed4c SHA-1: 8d5567666d54f5d87d2a2d0a3660d2bc2d1e8fd3 SHA-256: 76d532145c213839bc5c770c66f622acb0a4f9d5664412cc249db751020e597d
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service that is known to host malicious content. The document body, though obfuscated, includes the primary redirector URL, suggesting a phishing or scam attempt to lure users to external sites. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector link confirms this.

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=alexis+carrel+man+the+unknown+pdf In PDF document text
    • http://files.betsynorris.com/uploads/1/3/1/3/131398091/e96a329d.pdfIn PDF document text
    • http://kivoxugor.andreapizzoferrato.com/uploads/1/3/1/4/131412032/guvegaxuzinuz.pdfIn PDF document text
    • http://files.laurabwcrespin.com/uploads/1/3/1/8/131871650/binokud.pdfIn PDF document text
    • http://nexuza.guildscc.org/uploads/1/3/0/8/130874493/sajozafipixopo-puxujudemu-vutajanit.pdfIn PDF document text
    • http://files.rsdliteracytools.com/uploads/1/3/0/7/130739782/rabejiba-makufi.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/1/0436/6349/1222/files/43137995938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9440/8357/files/22085607973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9744/6816/files/wotawujepixuzijetaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/magic_osrs_calc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3686/8762/files/convert_caf_to_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6763/7922/files/latezub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0712/3357/files/8926655970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1210/4103/files/xizizogan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0489/5143/files/advanced_excel_vba_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/datewisomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/bangladesh_bank_officer_seat_plan.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 6

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_off000079db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79DB 5608 bytes
SHA-256: 2d61beb16a019e32fdd5a055a1b47d544220e7f910f8c800d1364a6a34c65689
font_01_sfnt_off00008ccf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CCF 9876 bytes
SHA-256: fc8a31446c9722edec38de32e11aa334e874a7b6fe6c1c4531b00567002c114a

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