Malicious PDF — malware analysis report

Static analysis result for SHA-256 84696eeea728b444…

MALICIOUS

PDF

41.3 KB Created: 2020-08-19 11:45:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 816a4cf24f1f3901ad5a0faa808c3121 SHA-1: d892bd8e0f9d23074a6efc52e22434f54286416b SHA-256: 84696eeea728b4441a13a11db579b79d8054110cca9bc61c128c2d56febb4584
194 Risk Score

Malware Insights

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

The PDF contains a deceptive lure, presenting itself as sheet music to trick users into clicking a link. This link, 'https://ttraff.cc/pify?keyword=happy+birthday+sheet+music+piano+pdf', redirects to malicious infrastructure, indicating a phishing or malware distribution attempt. The presence of numerous external PDF links suggests a link farm designed to manipulate search engine results or distribute further malicious content.

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=happy+birthday+sheet+music+piano+pdf In PDF document text
    • http://lomide.thessadventure.com/uploads/1/3/1/1/131164531/0fd22441c.pdfIn PDF document text
    • http://files.hhhschoirs.com/uploads/1/3/1/3/131398428/8542871.pdfIn PDF document text
    • http://denexilug.voicescienceworks.org/uploads/1/3/0/9/130969723/taderu-jotonij-risusapes-dezode.pdfIn PDF document text
    • http://wajixalo.libratheater.org/uploads/1/3/2/6/132681947/6228170.pdfIn PDF document text
    • http://files.merob.studio/uploads/1/3/1/0/131070374/vonijoxaf.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/1/0435/8812/4835/files/ravutalodatutubogori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/alive_lyrics_hillsong.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0816/2974/files/fonaturekov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8039/8486/files/fujugase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9579/3557/files/geometry_angle_relationships_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/57630788562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/7267/8054/files/crs_company_reporting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0449/1936/files/lagu_gratis_salah_apa_aku_dj.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_off0000630e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630E 5564 bytes
SHA-256: ac1081012ed651b5b742646d75e471775e4c1fce7706521c8e69933cadcfc820
font_01_sfnt_off000075cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75CD 10088 bytes
SHA-256: 22545b5d0d04b9c76f2a8f1156c0a5524fb5350192d4cf5f7c743c144bf9d6a3

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