Malicious PDF — malware analysis report

Static analysis result for SHA-256 362e61107b0cb3a6…

MALICIOUS

PDF

34.6 KB Created: 2020-08-12 16:26:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 167a56102a437e96f73ea12333dda541 SHA-1: 03c64b5149dcb206338fd3ea272fc798a5597911 SHA-256: 362e61107b0cb3a644230cc8e797b9c195d41d70b62f1c963042f89d673c2655
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains embedded links that point to a redirector service, which is a common technique for distributing malware or hosting phishing pages. The document body, though heavily obfuscated, contains text related to 'vanilla twilight sheet music pdf' and a URL that appears to be part of a link farm designed to attract search engine traffic. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is intended to redirect users to harmful 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.com/pify?keyword=vanilla+twilight+sheet+music+pdf In PDF document text
    • http://patatitam.pltma.com/uploads/1/3/1/4/131408027/fcddc678d.pdfIn PDF document text
    • http://files.crisscrossroadbeeyard.com/uploads/1/3/2/7/132740260/1ddfcc52c3ede.pdfIn PDF document text
    • http://files.seratrevor.com/uploads/1/3/0/7/130740617/vivota_giliwaji_juposuvebo.pdfIn PDF document text
    • http://files.wgfr.org/uploads/1/3/0/8/130874520/7008881.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/1/0431/6083/0103/files/basimezonaluje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4267/6636/files/11120290824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2599/7722/files/nut_bolt_types.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89120948070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pewowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5159/5429/files/pdf_do_livro_capites_de_areia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/dawepevuji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8083/5482/files/sumokufapejoremujap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7513/3859/files/15284439180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2030/4034/files/earthquake_waves.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
🗂 Part of campaign: fourlittleoneshilo.com 3 samples

Related samples 4

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_off000048a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48A3 5528 bytes
SHA-256: 172c41fd5dbb6467fdcbd525232094f690bfc2b3b86a871b6efe8cfe4ba6aff4
font_01_sfnt_off00005b5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B5C 10252 bytes
SHA-256: 02434869a333b350d1d4a5b01736e2cac7a57b55c7f55f5f3ff4fd253898fd31

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