MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a link farm designed to manipulate search engine results or distribute malicious content. The ML classifier also strongly flagged this PDF as malicious. The primary malicious URL identified is https://ttraff.ru/pify?keyword=beltenebros+libro+completo+pdf.
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=beltenebros+libro+completo+pdf In PDF document text
- http://files.miscoehillpto.org/uploads/1/3/0/8/130814172/4138176.pdfIn PDF document text
- http://files.leedstriathloncentre.co.uk/uploads/1/3/1/4/131406453/6874189.pdfIn PDF document text
- http://files.oiseaux-tempete.com/uploads/1/3/2/6/132696113/xisokumekoleki.pdfIn PDF document text
- http://files.nataliavidyakina.com/uploads/1/3/1/4/131454719/99ab18.pdfIn PDF document text
- http://files.larayesbbqsauce.net/uploads/1/3/1/6/131606260/basazoxebisevut.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/1/0430/2936/4885/files/jidiwirefibe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5497/3606/files/16649219874.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0233/9232/files/84294774754.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7278/1477/files/amortization_schedule_calculator.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2021/4681/files/23171319707.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/2047/3752/files/pijepawipazuwukizija.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9160/7190/files/lewaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4647/8759/files/fuxekivepiwit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1375/7339/files/2017622384.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3485/9927/files/43524561316.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4695/9261/files/osrs_zulrah_strategy.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off0000aaa8.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xAAA8 | 24552 bytes |
SHA-256: 70e1ea67dfbfa2835ee5da2aeb885019580cbda4f8bc41d22c9f473f43115414 |
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font_00_sfnt_off00007474.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7474 | 5280 bytes |
SHA-256: 9637e59a3520238cf265c60ed0aca94d83eb55a9e6f23dc4ad95f7e9a74a9fb7 |
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font_01_sfnt_off0000864e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x864E | 11092 bytes |
SHA-256: 242908afc4cdf204ec74e9754bd93bd0f52370ded217428099dfb8114066ebe2 |
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