Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd9abdf460a41c4b…

MALICIOUS

PDF

47.7 KB Created: 2020-07-31 15:06:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d7c0e64537676e7f793e60e6f32a3c3a SHA-1: dd407816f6d861a4b204c4b51a5c67b5f765ecbd SHA-256: fd9abdf460a41c4ba5877029c8a6e8e31d6f646687ed9b1d1067d8d37bdbf621
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link that is disguised as a download for programming notes. The link leads to a URL that is known to host malicious content. The PDF also contains a large number of external links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic to distribute the malicious content.

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=internet+and+java+programming+notes+pdf In PDF document text
    • http://files.juliedowling.net/uploads/1/3/1/1/131163898/xitutoj.pdfIn PDF document text
    • http://files.nelacrosseschool.com/uploads/1/3/1/4/131438216/jipidunufodubi.pdfIn PDF document text
    • http://files.roystonroyalbookstore.com/uploads/1/3/0/9/130969185/47fcd0c4416766.pdfIn PDF document text
    • http://files.christinafriedle.com/uploads/1/3/1/6/131636987/dinunolup.pdfIn PDF document text
    • http://files.mcearlychildhoodprogram.com/uploads/1/3/1/8/131871633/016078a8478c894.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/1/0440/6670/1477/files/42510493993.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6963/5746/files/xinitareruko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/44027472536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jatud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2329/2822/files/51748572194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5800/files/79075632102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0319/0181/files/relisisexili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0900/4952/files/bujaziwefalopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9033/7182/files/16178518487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3480/4375/files/kuwiruru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1561/7182/files/21335974918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3592/6434/files/31668254186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/18309989433.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_off000079b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79B6 5192 bytes
SHA-256: 9d736273f387da0038d8ccdcbd1be640b1d7bf78f20d4e5b6f3f2d6642296a05
font_01_sfnt_off00008b52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B52 11840 bytes
SHA-256: 228ce1fef9c644c024ffc74b2b79d5602c569476bf1d51f32c6bf2f4d645d8f8

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