Malicious PDF — malware analysis report

Static analysis result for SHA-256 14ba797c0a94b254…

MALICIOUS

PDF

65.3 KB Created: 2020-08-21 02:15:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42c69c4d7db5cb995fdc6f0f78dfd9c7 SHA-1: 463029e8153cf7fcd2997ec9d9ba995d9bb523c5 SHA-256: 14ba797c0a94b254eeee09cb363f33a15bfd4f3319d22089ee699a67b4949773
134 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure, disguised with keywords related to sheet music. This suggests a phishing or malware lure, aiming to trick users into visiting the malicious site. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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.ru/pify?keyword=spring+sonata+beethoven+sheet+music In PDF document text
    • http://wemipa.molliebing.com/uploads/1/3/2/8/132814930/gepozevaze-lipuruto-talagalefiduf.pdfIn PDF document text
    • http://files.synbim.co.uk/uploads/1/3/1/3/131383456/9723114.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/1/0431/2560/4513/files/nilosivilobokov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4287/4278/files/devilbiss_air_power_company.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4012/6614/files/36549969596.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4323/9589/files/frisco_texas_weather_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7320/7446/files/the_gregg_reference_manual_11th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9715/3943/files/fitilabuvidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/diraxula.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 5

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_off00009c01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C01 5620 bytes
SHA-256: bd8bf766c1c46fff3bd10a83c4a6809610fcbb4666554abd1963e3de662721a1
font_01_sfnt_off0000aef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEF6 16392 bytes
SHA-256: 685b17b7230089303d820f2f03bf5f72d5501fe267887a1965e111471f0cd7cb
font_02_sfnt_off0000e371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE371 16144 bytes
SHA-256: 8b5da12c2f5a7ee90c92fbc7e0259540bbefb8d268f63ec3b804f780b8926204

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