Malicious PDF — malware analysis report

Static analysis result for SHA-256 93ba9a9e9c5bc44c…

MALICIOUS

PDF

42.3 KB Created: 2020-08-21 16:43:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 61592bc87acf37fc78480f44b2183c47 SHA-1: f7096ea8035dc6ead4798cb08eedbea2c48d4702 SHA-256: 93ba9a9e9c5bc44c769a6bff48871540711c197f603d7974c84e3cebab44764c
194 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One URL, 'https://ttraff.com/pify?keyword=enlaces+quimicos+unam+pdf', is flagged as a malicious redirector. The document body is heavily obfuscated and contains a large number of embedded links, many pointing to Shopify-hosted PDFs, suggesting an attempt to manipulate search engine results or distribute malicious content through a seemingly benign document.

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.com/pify?keyword=enlaces+quimicos+unam+pdf In PDF document text
    • http://files.hartmanreserve.org/uploads/1/3/0/7/130739789/mexon.pdfIn PDF document text
    • http://misugiluj.jamesstockartwork.com/uploads/1/3/2/6/132683014/tegumuro.pdfIn PDF document text
    • http://files.pixelthisky.com/uploads/1/3/1/3/131384071/fuwukuseze_niwefu_sumud.pdfIn PDF document text
    • http://rimexeput.almosthomecare.com/uploads/1/3/2/7/132741066/rawutenofuvowag-xojuxed-zobekawogaju-duxokulipix.pdfIn PDF document text
    • http://files.robohounds.com/uploads/1/3/1/8/131856569/711e87cbfe05053.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/1/0432/6224/7067/files/2114348613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1827/2423/files/mechanical_measurements_6th_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/zoputujot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2341/6987/files/bipap_ventilation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0553/4620/files/26119919368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9978/1275/files/aufenthaltstitel_verlngern_mnchen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4638/7367/files/iso_9001_internal_audit_procedure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8357326041.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7754/2823/files/kasuzer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3883/2800/files/mii_qr_code.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 5

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_off0000660a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x660A 5288 bytes
SHA-256: b20f88a2e1e5beb36da5cf665f45d33650ade7c7f781a84759edc55c8f8b12e5
font_01_sfnt_off000077f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77F1 11088 bytes
SHA-256: 638e462f9ab9e53ae8f5c854c36209f83e079c567897717c8de6a7e3fc36ca85

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