Malicious PDF — malware analysis report

Static analysis result for SHA-256 6960ccf958689268…

MALICIOUS

PDF

42.2 KB Created: 2020-08-10 10:22:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d3d31e92142a8c716fda2c9ca644364 SHA-1: 749b0917dc6abc30f76fde9a0fcfa8deb09b7017 SHA-256: 6960ccf9586892683475c76d708815bd131189e5275c0929500e293c664bb54a
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate downloads for educational materials, but they redirect to a malicious infrastructure. The primary redirector URL is 'https://ttraff.cc/pify?keyword=maths+book+for+class+11+ncert+pdf', which is part of a link farm aiming to trick users into downloading unknown files. The ML classifier strongly indicated maliciousness, and the presence of multiple redirector links supports a phishing or scam campaign.

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=maths+book+for+class+11+ncert+pdf In PDF document text
    • http://files.norcalpermitservice.com/uploads/1/3/0/7/130775431/pimebukuw-remudix-sofozexo-pokixumegen.pdfIn PDF document text
    • http://palelezi.sunrisehempsupply.com/uploads/1/3/0/8/130814328/zowuruwavuloli.pdfIn PDF document text
    • http://files.peninsulatitle.org/uploads/1/3/1/4/131452922/1b8e8c5f6a1115.pdfIn PDF document text
    • http://files.empiregalaxies.com/uploads/1/3/0/8/130874369/3440185.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/1/0432/8616/7702/files/mowawaxetisiwasox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8990/3264/files/11582921957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6906/3836/files/nuluwubepetibunukidopewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3117/4039/files/kukipigusazejeragugugiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8602/0761/files/lusujopinanibatekekifixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8523/3302/files/parasitologia_humana_pereira_neves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pekazojifedabefotekufof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2412/9952/files/6535428098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4930/3720/files/deduxajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4711/6197/files/gilitevome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76102764406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43561311815.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
🗂 Part of campaign: brandonarthurshindolcsw.com 4 samples

Related samples 2

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_off0000674f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x674F 5504 bytes
SHA-256: a66a2eae327a86a095a0dec289f2b5b42b139f3b5cb9e2a8d5eff2218078cd73
font_01_sfnt_off00007a0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A0F 9852 bytes
SHA-256: 2499f7f503c7509bbbf79c52568df19117087f26a43950292284cfc65f537387

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