Malicious PDF — malware analysis report

Static analysis result for SHA-256 62f9540bf46866a5…

MALICIOUS

PDF

56.8 KB Created: 2020-07-30 18:40:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a669e6b9f597f96d55688156b8fd059e SHA-1: 3d177457c8783aa6e7e5c664bbf236e96e6d3c54 SHA-256: 62f9540bf46866a502c4549086ad1469172d240621b0b5a1f62eb540c6e8d876
194 Risk Score

Malware Insights

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

The PDF contains multiple links pointing to redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=concerto+d+aranjuez+piano+pdf', which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to 'Concerto d aranjuez piano pdf', likely a phishing attempt to trick users into downloading malicious content. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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=concerto+d+aranjuez+piano+pdf In PDF document text
    • http://files.nourishmeantshop.com/uploads/1/3/1/4/131438490/pajikenef.pdfIn PDF document text
    • http://files.tylerdesroches.com/uploads/1/3/0/7/130775219/9c76f.pdfIn PDF document text
    • http://files.silvercabofbakersfield.com/uploads/1/3/2/7/132712369/zemujizolatos.pdfIn PDF document text
    • http://files.amormontherapist.com/uploads/1/3/1/8/131856917/f4cbfef157330d.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/1/0432/2702/1480/files/44819962331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xoxolesusoziviro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4085/7494/files/19493633317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8935/4142/files/62705457991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/35070849464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/22084062479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8863/2213/files/26882289478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3140/2395/files/zudigalomojir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1391/5303/files/vepisiletugekuzeke.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_off00008ce5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE5 4968 bytes
SHA-256: 156b8060b29244b206dd47348ab15e70b26540848f223a23ec9e3240c4f25a45
font_01_sfnt_off00009de6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DE6 10156 bytes
SHA-256: c02c3ebde8b46585a4c83d27f53e1c3e5c4e7ed572a18b7647f0fa281476ab04
font_02_sfnt_off0000c0db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0DB 16120 bytes
SHA-256: fb7b45e24c28c4473d0ca1c6410c593992d9a809009f9c41b5ae32c9142507dd

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