Malicious PDF — malware analysis report

Static analysis result for SHA-256 f20dbe6d3331c413…

MALICIOUS

PDF

47.5 KB Created: 2020-08-01 17:01:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e423dbfff18bb46ba81257f96b0e12a1 SHA-1: 709b6fa210c2c6b5c22c8701388e6714a87ef6d9 SHA-256: f20dbe6d3331c4132ff32017b5a5f1ec9f761b0abf4130d55d3a1c471a26296c
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which point to a redirector service (ttraff.cc) and a link farm hosted on Shopify. This indicates a deliberate attempt to obscure the final malicious destination and potentially distribute malware or conduct phishing. 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=more+player+models+1.+8.+9 In PDF document text
    • http://files.fairgreenoutreach.com/uploads/1/3/0/9/130969708/kilunan-bideradenoledob-fezafexivadad-zagufep.pdfIn PDF document text
    • http://files.nationalparkswithkids.com/uploads/1/3/0/7/130740522/f7a74a4a181c3f.pdfIn PDF document text
    • http://files.stlpti.com/uploads/1/3/1/3/131382243/jifopanu.pdfIn PDF document text
    • http://files.timelessvaca.com/uploads/1/3/0/9/130969446/pupuw.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/1/0435/0879/3510/files/47725660386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7372/4825/files/1186064823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2991/4012/files/50617909391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12909571685.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1671/6437/files/hydrology_and_hydraulic_systems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2018/0894/files/52556909239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7381/4172/files/55195568276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3826/0899/files/winanuzinamobim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42632515291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/wutejowevexudelegigekama.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E2 5648 bytes
SHA-256: 015a9afaf3048754a2dc67c2ea539ffed94d52a1947e9f43084ad25a4ef0c678
font_01_sfnt_off00007811.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7811 10412 bytes
SHA-256: c8824d934cb34f0006d51c62196a974759466fdc701d697888956170c8c513ea
font_02_sfnt_off00009bd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BD6 16064 bytes
SHA-256: 9b78b915eb75ef0aea6965a6113565ca1bcac7735c766488ce9f12ff332a71b4

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