Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a43eafa4b7265f2…

MALICIOUS

PDF

32.7 KB Created: 2020-08-03 14:02:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 685f25b42cd91b41e9662a72ccaf9f34 SHA-1: f77e6f3932508764fb3b2fdb36c42ff77f383fbb SHA-256: 0a43eafa4b7265f28361c18baa5fa1e1038ee2c40fdd09d73ce442a619995e76
194 Risk Score

Malware Insights

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

This PDF document contains numerous links designed to appear as legitimate sheet music, but they redirect to malicious infrastructure, specifically `https://ttraff.ru/pify?keyword=logical+song+sheet+music+pdf`. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests a phishing or scam attempt. No scripts were extracted, but the embedded links are the primary threat vector.

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.ru/pify?keyword=logical+song+sheet+music+pdf In PDF document text
    • http://files.elaine-yoga.com/uploads/1/3/1/3/131379223/sugasotitedali-fekenuropa-sajib.pdfIn PDF document text
    • http://files.ascension.foundation/uploads/1/3/0/7/130740138/bepubimudijito_vajuxoj.pdfIn PDF document text
    • http://files.mygrmobilervrepair.com/uploads/1/3/0/8/130813757/1566416.pdfIn PDF document text
    • http://wupipo.bibrigade.org/uploads/1/3/1/6/131637257/kimesod-powivegevotegak-nozikipexifa.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/1/0430/6881/7569/files/dovulekuzagelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2852/7776/files/finakonositupekonif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9801/3845/files/42218372322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2421/9288/files/pokewor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9178/6918/files/waroruwaguwifolenorade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3549/0461/files/xasufasogubikowovibipas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0845/0972/files/sutabegelusuvixovabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7737/8972/files/66284376451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/26090506268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4311/9527/files/el_imperativo_categorico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5957/6986/files/gubabojugozoparifol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2601/4620/files/49202773907.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 7

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_off00004321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4321 5416 bytes
SHA-256: fe7062847282a897d6daf9333b1f201a93786614a64487c8c034ba36f5458e5e
font_01_sfnt_off00005570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5570 9504 bytes
SHA-256: e3b3cb00c7dd48d603d4a10cda48d7f4831e0d89b0a54cd40a796256b0068695

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