Malicious PDF — malware analysis report

Static analysis result for SHA-256 d21aefd5edcb92cc…

MALICIOUS

PDF

45.0 KB Created: 2020-08-10 11:00:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3237a0b0163117d9e3fb869bde22855b SHA-1: ec7cf49c8b775fc4ea8533e42545be0974fea525 SHA-256: d21aefd5edcb92cc607d5f60174af5d3e81f2e2bde6253fe8d068b1c266e358b
194 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of the primary links, 'https://ttraff.cc/pify?keyword=calcium+hydroxide+msds+pdf', is identified as a malicious redirector. The document's structure and the presence of numerous links suggest a link farm or SEO poisoning tactic designed to drive traffic to malicious infrastructure.

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=calcium+hydroxide+msds+pdf In PDF document text
    • http://dobejoseg.mgturpin.com/uploads/1/3/1/6/131607600/todalaz-tufesusidojef-nujizonak-tuvukodo.pdfIn PDF document text
    • http://xaruzef.imissthe90s.net/uploads/1/3/0/8/130813528/b8bfa35e8f.pdfIn PDF document text
    • http://pedeje.rockingsmithranch.com/uploads/1/3/1/0/131070420/1009809.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/1/0430/0144/6554/files/nuvaredupefovuwoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3698/2952/files/kilomizen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/74257612106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3305/9737/files/92463025291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/gukisigifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/bansal_classes_chemistry_notes_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6887/5157/files/simeloxozasutel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2909/3784/files/51307461154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8581/6218/files/1623455080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3770/4867/files/59978127317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/14981909947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9096/7714/files/bhagavad_gita_slokas_in_sanskrit_with_meaning_in_bengali.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 1

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_off00007196.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7196 5468 bytes
SHA-256: 986dd5cd3342191d3df365e2adae9b7564c4327cb144f6937a656d1266f20387
font_01_sfnt_off0000840e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x840E 10348 bytes
SHA-256: 3d1999cd8e3f71dcefe487b1389cdd37901e1e291556b0baa865091c5ed4db11

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