MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to a book title. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further malicious content. The presence of many external links points to a link farm or SEO poisoning technique.
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.ru/pify?keyword=os+lusiadas+de+camoes+pdf In PDF document text
- http://files.hammerwichbowls.com/uploads/1/3/1/3/131383325/26f34a307b13.pdfIn PDF document text
- http://files.oregonfestivalforworldrelief.com/uploads/1/3/1/3/131383673/donokomizun_nexaxo.pdfIn PDF document text
- http://files.pikeboarddd.com/uploads/1/3/0/7/130776518/6154278.pdfIn PDF document text
- http://files.neilbushby.com/uploads/1/3/1/3/131379099/3392620.pdfIn PDF document text
- http://files.storyknowingwithadolescents.net/uploads/1/3/1/0/131070469/5476511.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/1/0428/9835/8432/files/rosetotirumeza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4203/8182/files/15992825640.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5537/3720/files/lupetolufalaginutisaxo.pdfIn PDF document text
- https://fatoturomixo.files.wordpress.com/2020/06/82700186661.pdfIn PDF document text
- https://faxonitu.files.wordpress.com/2020/06/jetubopitupobuxon.pdfIn PDF document text
- https://gigifovagipe.files.wordpress.com/2020/07/62660207731.pdfIn PDF document text
- https://ligivuv.files.wordpress.com/2020/07/sosapudozavej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87074842841.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuxovozukirofavekejob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8693/7253/files/mitib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pelezegagujagemubejapo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9074/8316/files/17181021178.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5794/6530/files/91307503020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rixaraxamixenapo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5161/3336/files/tagawixatilanegabug.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_off0000a8d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA8D9 | 4928 bytes |
SHA-256: 5140010c33b8c00e8493fdd668a866716893fb57c6daa20d5220c25a673c065f |
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font_01_sfnt_off0000b9a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9A0 | 10720 bytes |
SHA-256: e91f0f466b0fade6abe022772b1166536c2e5c778f3a9b27d164302cc81fb641 |
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