Malicious PDF — malware analysis report

Static analysis result for SHA-256 658ca3747c2ed1a2…

MALICIOUS

PDF

69.9 KB Created: 2020-07-31 20:29:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ee937f6e9cf8e69add376193f366054b SHA-1: 2efad3adbd774ecea567c4253e99a537b09ec087 SHA-256: 658ca3747c2ed1a2c6312bace8023029ffbbb9171792014613eff2651b94ab64
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, with a high ML classifier score. The document body, though heavily obfuscated, contains a URL that points to a redirector, which in turn links to a Shopify domain hosting a PDF. This suggests a phishing or malware distribution attempt using a lure related to 'the lonely island songs'. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=the+lonely+island+songs In PDF document text
    • http://files.westfieldboyssoccer.com/uploads/1/3/2/7/132740445/b01b3cde64.pdfIn PDF document text
    • http://files.mascarachronicles.ca/uploads/1/3/1/3/131382113/8364707.pdfIn PDF document text
    • http://files.horseshoecrabtagging.org/uploads/1/3/2/6/132681545/wutazowasopor.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/1/0435/0499/2408/files/3569738443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7803/3313/files/54660316786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/57766425672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5083/3822/files/4701966883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8314/4104/files/33553581423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8819/9332/files/sovukaruradawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1383/2857/files/rulirowesed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0407/5933/files/lenofoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5032/7451/files/kifenaporagitogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8153/0534/files/82362631283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6686/0455/files/37948031350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6329/6678/files/51999307067.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/1/0428/1873/2191/files/sepor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mupuxisupevijerabufogete.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 6

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_off0000c96b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC96B 5040 bytes
SHA-256: 10e7b643bea350932538e06a5dcb8f5618695d4d5c69f441ef485dfec6aa87d7
font_01_sfnt_off0000da99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA99 15364 bytes
SHA-256: dc24b2e8ef34b317eaa86f4035e9d28f4c50ede8a315dcf85b75cf169337625f

Open this report in the interactive analyzer, or submit your own file for analysis.