Malicious PDF — malware analysis report

Static analysis result for SHA-256 09f11aee012a1e2e…

MALICIOUS

PDF

40.6 KB Created: 2020-08-06 19:06:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 36a792b1dc002449aa10482af50280fb SHA-1: 1f79a7258f9e8db233d1908133906665060d5031 SHA-256: 09f11aee012a1e2eeedb69ff7f514ef15007a56352ddd43d0ebd20a9d2e6f31a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external PDFs, many hosted on Shopify, and a primary redirector URL. The heuristic firings indicate this is a link farm designed to redirect users to malicious infrastructure, likely for phishing or malware distribution. The ML classifier strongly supports the malicious nature of this PDF.

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=calendario+lunar+2020+pdf+mexico In PDF document text
    • http://rokaradat.rol-ministries.com/uploads/1/3/1/6/131636612/jipomikerij.pdfIn PDF document text
    • http://xuviril.rockinpfarmandfeed.com/uploads/1/3/1/1/131164243/4970556.pdfIn PDF document text
    • http://files.zoe-farmer.com/uploads/1/3/0/7/130739991/vemuruwu.pdfIn PDF document text
    • http://files.andreamalinskymason.com/uploads/1/3/2/8/132816195/1805780.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/1/0435/5201/4491/files/31114091040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9564/5589/files/vowolepomanaxitem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zafon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37263727017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3391/0681/files/introduction_to_management_accounting_horngren.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0600/8216/files/organic_chemistry_marc_loudon_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3171/4202/files/finilifagumemunepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/how_to_delete_partition_on_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6519/6197/files/sudosunozomuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3886/6593/files/dosep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6512/1695/files/wobuleg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5581/5583/files/judakurujobexujotizizewu.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_off00005f6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F6E 5372 bytes
SHA-256: 7009d5da9d23847ddb3e490ae3d58c2d6091b656166e408cab6127053e39aa86
font_01_sfnt_off0000719c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x719C 10592 bytes
SHA-256: a795af856ffc8c28f580ebe17213370859bea2cf07b8f376282d20affa094296

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