Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bec229bf501fb7f…

MALICIOUS

PDF

41.0 KB Created: 2020-08-24 01:49:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ea4f7781e7e25677d6c29b2d86e116b SHA-1: 1be8b268104019d09e64a8b9d9580765f79b764c SHA-256: 6bec229bf501fb7ffb69ba83fc4e1d4c957a471d96ee2f6e22e58ac114a399c2
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body also contains this URL, suggesting an attempt to trick users into downloading potentially harmful content. The ML classifier also strongly indicated maliciousness.

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=gavotte+en+rondeau+guitar+sheet+music In PDF document text
    • http://files.elancommunities.com/uploads/1/3/1/1/131163960/8890601.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/1/0433/9790/6589/files/7145167753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6594/1917/files/medical_newsletter_templates_microsoft_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8482/4222/files/how_to_make_balloon_animals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4402/0125/files/idealist_retmen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4457/7185/files/ableton_live_9_lite_full_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2047/4779/files/peptic_ulcer_articles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5007/2224/files/wallpapers_for_laptop_hd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6016/5797/files/xisisejapasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8235/7663/files/dotav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/79818865295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/fotawusoguwuropixile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7335/3381/files/40k_adeptus_mechanicus_codex.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 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_off000063de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63DE 5412 bytes
SHA-256: b708e9425061633f22fa8f50f648f074d955c4365e13d8bc8e88dc9fcaf4af45
font_01_sfnt_off00007629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7629 9792 bytes
SHA-256: e9c8ef7fd3e6a95a188dc9ac5c8291a6de5d1dc4df14087151f5c2725adeefcc

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