Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dd49624cef1c56f…

MALICIOUS

PDF

63.1 KB Created: 2020-08-04 16:22:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ef963af253a22911bc64d7b784c1c0d SHA-1: c7c233a0fd7b3963f0dc426ee85dc4e071e5869a SHA-256: 6dd49624cef1c56fde0e558bd7445a9faf8b5b66de60e070789f40baf2f5d8e8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which point to a redirector service. The primary redirector URL is identified as malicious, suggesting a phishing or scam attempt to lure users to a harmful website. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing the malicious intent.

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=problem+solving+methods+in+artificial+intelligence+pdf In PDF document text
    • http://files.kristiekvuocolo.com/uploads/1/3/1/4/131407148/4932d.pdfIn PDF document text
    • http://files.merarifernandez.com/uploads/1/3/1/4/131407165/6839308.pdfIn PDF document text
    • http://files.badcredentials.com/uploads/1/3/0/8/130814157/ratadasa-wevuregexavet.pdfIn PDF document text
    • http://lutoroni.audreylynnecook.com/uploads/1/3/0/7/130776257/zaxivifiguxo.pdfIn PDF document text
    • http://files.jerryjonesguitars.com/uploads/1/3/1/4/131408172/5095027.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/1/0434/5731/4983/files/alveolektomi_jurnal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6778/4864/files/rigituze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9928/1821/files/74000859042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/kigemaboragebibixir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7737/6936/files/jasamojamujuzadon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0297/7700/files/85922233987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9649/0663/files/2002_ford_taurus_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2379/3308/files/fegogufumeli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0477/3031/files/college_physics_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3397/7255/files/jejuximejoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7779/4982/files/vejirim.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_off0000b89d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB89D 5768 bytes
SHA-256: f358216b7c41d70e83d4909a031d5405bd04c9c22722fcbd0bc9051ef09a3bc9
font_01_sfnt_off0000cc1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC1D 10140 bytes
SHA-256: 10b35b23ebfec1718b52d04cda611ef311a72fdb0bb98bf4b016fbbbe9407a67

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