Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc7c9501f40bdf2e…

MALICIOUS

PDF

35.9 KB Created: 2020-08-13 15:38:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eebf42cbc1ffadd41f434039e76bb18a SHA-1: 9220ae68973a94e92299add59f4bc1efdde6ca4c SHA-256: fc7c9501f40bdf2e1ec5979b870d8d78322529cd8d31bad0353e5aa95857d305
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=corazon+de+ni%25C3%25B1o+partitura+pdf, which is likely used to lure users to a malicious site. The document body is heavily obfuscated but contains references to the malicious URL and other Shopify-hosted PDFs, suggesting a link farm or content-loading strategy.

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=corazon+de+ni%25C3%25B1o+partitura+pdf In PDF document text
    • http://files.straitduckguideservice.com/uploads/1/3/0/7/130776257/jolunoz.pdfIn PDF document text
    • http://files.ouhsdra.org/uploads/1/3/0/8/130814078/6513122.pdfIn PDF document text
    • http://files.taichilab-cambridge.co.uk/uploads/1/3/0/8/130873877/petidureb_movejubomi_kixamixug.pdfIn PDF document text
    • http://files.goodshepherdogden.org/uploads/1/3/1/4/131409597/1e774a1ec8f45b.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/1/0432/9324/5590/files/87730751616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4467/3448/files/95738496124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7107/7526/files/aegisub_manual_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lamafavikunidamekisuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3668/7008/files/airline_industry_trends_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1346/7286/files/45598458987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9593/9488/files/87911606295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6231/3639/files/61050532625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6348/4315/files/zatevisozigevafib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8199/0295/files/partition_de_amazing_grace.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4234/6907/files/53509100756.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/dijojesibejejoneva.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
🗂 Part of campaign: ouhsdra.org 3 samples

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_off00004f26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F26 4992 bytes
SHA-256: a48492b1f6ddf482cadff6e3df8243a3a2b1f4f5e10b8ad425debf147b6291ee
font_01_sfnt_off00005fed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FED 10204 bytes
SHA-256: 292fb4c64ec4fe4871ba3a532d6140d2c9c50e50123e4a507215b155df3972a8

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