Malicious PDF — malware analysis report

Static analysis result for SHA-256 959789976af4f529…

MALICIOUS

PDF

54.8 KB Created: 2020-07-29 19:36:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 010e732c968698df40c8af969efa6411 SHA-1: c93288e37de61795d1ba39ff08be034f7a908807 SHA-256: 959789976af4f52945d7b668e50e0d54b6f1fb4138c6c8e5e4c0faca331b8366
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.cc/pify?keyword=build+my+life+sheet+music+pdf+free`. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on `cdn.shopify.com`. The document body, though heavily obfuscated, contains text related to sheet music, suggesting a lure for users seeking free downloads. 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=build+my+life+sheet+music+pdf+free In PDF document text
    • http://files.mountainhomeyogacenter.com/uploads/1/3/1/6/131637271/muxuvonu-kukepoxew-lixaginogupiw.pdfIn PDF document text
    • http://files.brandingnetworks.com/uploads/1/3/0/9/130968968/5726406.pdfIn PDF document text
    • http://files.gentlemansmaven.com/uploads/1/3/0/7/130738792/3c804fa1e39.pdfIn PDF document text
    • http://files.valleyviewdoodles.com/uploads/1/3/2/6/132695543/sufetesaxofenem.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/1/0430/7520/7322/files/7576518044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/xaribukakujuwuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6353/2951/files/81934878543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7341/3028/files/kipopazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3486/1987/files/gedexixovelabaletodakivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1243/1776/files/bobubisanotisiwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0184/7708/files/lusixafapufutatuzilavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1075/2663/files/suneponejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/dotod.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_off000084db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84DB 5000 bytes
SHA-256: 03cc826cc741e6ee1712c9d077830c085738298451e62b818cc203a9609d5386
font_01_sfnt_off000095f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95F0 10044 bytes
SHA-256: ee0e1d566eedfd815313a7c66be77458fce01c4abc7924bcba5e03a0d23cc239
font_02_sfnt_off0000b88b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB88B 16100 bytes
SHA-256: dbe3dd64dc066f428802739f18684eaf08c446fcda8cbe88d420f1ef9ee6b29b

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