Malicious PDF — malware analysis report

Static analysis result for SHA-256 b649859d63237baa…

MALICIOUS

PDF

32.4 KB Created: 2020-08-04 05:34:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6966fc4c9d9971acc88cbb82ec3e6eb4 SHA-1: 617a29aa3ee3f5c4bee4a9079909ed836a172841 SHA-256: b649859d63237baa014ea12ec76ed2ecb91d626d96857fc5f39ddc31a3e79550
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, contains text related to sheet music and includes the primary malicious URL, suggesting a lure to a malicious site. The presence of a PDF redirector link and a link farm indicates a malicious intent to drive traffic to potentially harmful destinations.

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=all+of+me+piano+sheet+music+pdf+piano+guys In PDF document text
    • http://namam.roselleyouthtrack.com/uploads/1/3/0/9/130969742/f9a8b678.pdfIn PDF document text
    • http://files.sandysfashionsformen.com/uploads/1/3/0/8/130814055/lilig-pipenatatoxodal-guvajatomerov-busojafigoj.pdfIn PDF document text
    • http://files.sallysharpe.net/uploads/1/3/1/3/131383977/gutimogux.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/1/0435/8320/9631/files/2437552496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8489/0790/files/98939715504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0282/9734/files/vivojavakewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7118/3777/files/retisibesofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1998/5319/files/malikez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2172/8918/files/90389202300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46676539889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0517/3147/files/alienware_fan_control.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4629/5959/files/lowes_boardman_ohio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3355/1260/files/jofefesatusarevekebitemen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3640/0037/files/10656680377.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_off0000418c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x418C 5564 bytes
SHA-256: 4d439f30b3cc863afe58fc37744f421d8c534dd5507a028c3b9ed0885555daf1
font_01_sfnt_off00005463.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5463 9544 bytes
SHA-256: f61b87eca4a9d91a90b47a15eea6dcbbb984170451e9f2863a0a38563ea98765

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