Malicious PDF — malware analysis report

Static analysis result for SHA-256 acc925521446ff1c…

MALICIOUS

PDF

36.3 KB Created: 2020-08-10 11:26:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bf370b7600f68f6fca83387069ce2fd8 SHA-1: fa40d5482116c63da87a28693ec45930aeaaf3a2 SHA-256: acc925521446ff1cdfaf90e26d50a04a4cf85dcf041ae5e391aba6378d284dba
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to mimic search results, directing users to a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=catalogo+hinode+2020+pdf+ciclo+4. This suggests a phishing or malware distribution attempt disguised as a catalog. No scripts were extracted, limiting the analysis of direct payload execution.

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=catalogo+hinode+2020+pdf+ciclo+4 In PDF document text
    • http://betefuge.sandfieldparkschool.com/uploads/1/3/1/4/131407406/xumivixe.pdfIn PDF document text
    • http://files.hoolahoopgreetings.com/uploads/1/3/0/7/130739533/3199986.pdfIn PDF document text
    • http://files.cconsultingsa.com/uploads/1/3/0/8/130815726/69d7be8fd.pdfIn PDF document text
    • http://files.arsenalmarketingstrategies.com/uploads/1/3/1/6/131637108/b47a0ea.pdfIn PDF document text
    • http://files.stevenhendricks.net/uploads/1/3/1/8/131857193/d1c2d6b9d5.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/1/0439/8150/4670/files/algebra_formulas_for_class_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7739/3815/files/52312863016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5288/2330/files/tonedubovijorisalup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9620/3679/files/22994027226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1746/0120/files/xosoxat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/61768684582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9334/3899/files/muvitexim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7231/4778/files/45762438872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9675/0746/files/falibam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3505/7566/files/67420273050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3291/9720/files/92359266167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7794/9848/files/types_of_centrifugal_casting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7081/6407/files/folutawomileza.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_off00004dae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DAE 5412 bytes
SHA-256: 56fe5cc7f20a6f404e50e6a0bffe8e1d7be096cf9252c74e210b33abe48315fc
font_01_sfnt_off00006015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6015 10556 bytes
SHA-256: b1e6a4cb9255919269875631568756ae876d603ebfca416974123526382422f2

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