Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fae632a0db322f0…

MALICIOUS

PDF

45.7 KB Created: 2020-08-24 17:28:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 575fa401e51ec32425202dddfd4f9c9d SHA-1: 2ea4562921a28688f67053ea45bf3463c6712f18 SHA-256: 4fae632a0db322f00c56a8bdb21e69298aeb2ec6b85b43cdc8eed18d3c117f90
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=plantillas+portadas+para+word+formales'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external PDF links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL. This suggests the primary goal is to redirect the user to malicious infrastructure, likely for phishing or to download further malware.

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.ru/pify?keyword=plantillas+portadas+para+word+formales In PDF document text
    • http://files.weatherpaige.com/uploads/1/3/0/8/130874204/1807820.pdfIn PDF document text
    • http://files.3shirescoaching.org/uploads/1/3/0/8/130873893/f841f6530.pdfIn PDF document text
    • http://files.northmiresouces.org/uploads/1/3/0/9/130969966/d4e8a0157.pdfIn PDF document text
    • http://files.efjja.com/uploads/1/3/1/4/131408024/kasoras.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/1/0437/1320/0278/files/6077325839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7090/5750/files/81611559691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1720/6946/files/dusegitiragovuxuninax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1310/2998/files/8821639165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9709/5333/files/pelitokuxowulimami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93880590480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7066/8453/files/53113181566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5595/5613/files/gefimugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/25439638818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6259/9585/files/fodejakezono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2802/8312/files/exercices_pour_apprendre_le_franais.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0094/7103/files/bipivunidigijevetomoxid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7547/7407/files/safidifegufijokageser.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6662/9032/files/41505073418.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_off0000670b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x670B 5280 bytes
SHA-256: 1ef8a187391c7690865b8e87e5ac9a23ba77c07b5392daf1bed3c221a00dac2f
font_01_sfnt_off000078f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78F2 15404 bytes
SHA-256: 6593a336fd77c789bf0c07005b5d0413c51f95183ad5f286e1d2d9624a215439

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