Malicious PDF — malware analysis report

Static analysis result for SHA-256 10ca41fd29d04b45…

MALICIOUS

PDF

48.1 KB Created: 2020-08-02 09:24:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cc7f2b8322aa7daa8c47beb504772244 SHA-1: 3f94f9c3da30d711846516449b7f63bd09062dfc SHA-256: 10ca41fd29d04b45d21a4e539ab1c32e5f8c0c4f84f7c6122f7be0e197f7aa58
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating it points to known malicious redirector infrastructure. The document body, though obfuscated, contains a URL that matches the redirector, suggesting a phishing or scam lure. The presence of many links also suggests an attempt at SEO manipulation to distribute the 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.com/pify?keyword=best+heroes+for+cursed+hollow In PDF document text
    • http://files.saverahwaypark.org/uploads/1/3/0/7/130740563/pilomege.pdfIn PDF document text
    • http://files.crossroadschurchvt.org/uploads/1/3/1/3/131379591/vakaxazote.pdfIn PDF document text
    • http://files.greatwhytesurfboards.com/uploads/1/3/0/7/130775320/dcf98a6b3de9549.pdfIn PDF document text
    • http://files.ollingerconsulting.com/uploads/1/3/1/6/131606280/f021f0d4f7d.pdfIn PDF document text
    • http://files.christinetayloronline.com/uploads/1/3/0/7/130775310/807265.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/1/0427/6705/7063/files/12488333281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3241/0272/files/ge_dishwasher_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0744/2072/files/tasutokurupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8917/4432/files/fejugizasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5892/9570/files/63550969398.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4671/5040/files/54105231731.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/96901449204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6444/9431/files/63931975065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6582/6719/files/67466670934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3741/7891/files/wekawuzafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/review_on_bovine_mastitis_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/wemem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/11371986517.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_off00007f32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F32 5040 bytes
SHA-256: d7ac9e1f927d608df876dc719c384ee83fe591e53b57b991d2b09e5e8b6503f9
font_01_sfnt_off0000906d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x906D 10204 bytes
SHA-256: d6e9885192da1160681437d6c9b4ee2b7cfb0c312b925f014163a9f1285c5fc6

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