Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bf4607c14447086…

MALICIOUS

PDF

41.1 KB Created: 2020-08-05 23:43:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6eac7b9c587b2e2eafcaa32cc5f3165 SHA-1: 68bcb7ae6ec84f4bca3b2d6079edc9f197deeca9 SHA-256: 6bf4607c144470866c866b70714e9b9c481e35e700a165357d83e3ab8861c77a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, includes the primary redirector URL and several Shopify-hosted PDF links, suggesting a link farm or phishing lure. The ML classifier strongly indicated maliciousness, and the presence of redirector links supports a phishing or malware distribution attack pattern.

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=set+associative+mapping+in+cache+memory+pdf In PDF document text
    • http://files.joanieandjennib.com/uploads/1/3/1/6/131636941/devagope-bofidukomud.pdfIn PDF document text
    • http://files.poja-collection-microscopic-anatomy.com/uploads/1/3/0/8/130874381/fupuwuve-wujejivebelo-jowegilatimudiv.pdfIn PDF document text
    • http://files.ownbeachrentals.com/uploads/1/3/1/4/131406840/9534838.pdfIn PDF document text
    • http://files.missourivalleychristianschool.org/uploads/1/3/0/7/130775368/jomosatenipomap.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/1/0431/2177/0657/files/fillable_personal_financial_statement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3845/7501/files/44536326218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3358/4028/files/fogowiserokesuzobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9295/9642/files/69951486748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5615/1190/files/33041161792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0835/2679/files/loduvikerawote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9676/8661/files/sofilixirorogixuwamofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1095/7210/files/razedezelumavozozizus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8151/3622/files/98261410013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9690/6659/files/apostrophe_for_possession_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4826/4089/files/denadelogedoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5827/5238/files/xexukexunufogomupat.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 4

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_off00006238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6238 5804 bytes
SHA-256: 43ff89ddd5ec79b355b978fa48da1602d89e7e0c7ed4f4a80f10390e94c67812
font_01_sfnt_off000075e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E0 9900 bytes
SHA-256: 132e0c2c888453553687fd8b5ff4cf8786db361cba39dad3250e1d72626e5347

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