MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to a known malicious infrastructure, indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL that triggers this redirection. Additionally, the PDF_SEO_LINK_FARM heuristic suggests a large number of links to external PDFs, likely for SEO poisoning or to host further malicious content. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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=heart+anatomy+and+blood+flow+worksheet+answers In PDF document text
- http://files.strategiesforwriting.org/uploads/1/3/2/8/132815866/kuxusizavilodiwoz.pdfIn PDF document text
- http://files.camperconversionswales.co.uk/uploads/1/3/1/6/131606758/jurapegolala.pdfIn PDF document text
- http://files.junkremovalwoodlands.com/uploads/1/3/1/8/131856032/032d243cb1e222d.pdfIn PDF document text
- http://files.chillinandgrillinintheglades.com/uploads/1/3/0/7/130740013/ec8acd1c3c3c.pdfIn PDF document text
- http://files.thegreedycouple.com/uploads/1/3/0/9/130969192/e916aee.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/1/0432/5628/3296/files/dodizefap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0443/1344/4508/files/39693993311.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8305/5782/files/fenewa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jatud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9171/3447/files/63343292781.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7121/8588/files/bamomel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5583/1445/files/35626818522.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7192/1571/files/sengoku_basara_ppsspp_android.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6689/2191/files/zigelav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0425/4615/files/nazatibe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9780/1375/files/karamivudidupazal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1871/4264/files/bifilijaxulatejixate.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0460/3346/9604/files/78008342163.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7008/5525/files/zezapep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9833/9496/files/47589145623.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006516.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6516 | 5508 bytes |
SHA-256: 59205237786af10f419aa3ad7d178e012f85ce8335d4ae7e470a4d38efb0155f |
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font_01_sfnt_off000077b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77B8 | 9776 bytes |
SHA-256: a316db7109e5e044e4c3848acd747183e94dd5c02b9a7eb75950650480c92949 |
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