MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, also contains the same malicious URL. The presence of a large number of external PDF links suggests a link farm or SEO poisoning attempt. The ML classifier also strongly indicated maliciousness.
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=beethoven+moonlight+sonata+1st+movement+sheet+music+pdf In PDF document text
- http://files.okohstudio.com/uploads/1/3/2/6/132696194/gijilusuxikive_dixunixoxaguru_xapevizi_dowuxuk.pdfIn PDF document text
- http://zevisus.sharonlewis.net/uploads/1/3/0/8/130814229/4614231.pdfIn PDF document text
- http://files.snowypeaksoap.com/uploads/1/3/2/3/132302973/a7512c13cdce8e.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/1/0431/6200/9755/files/discord_how_to_not_ping_someone.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2208/8354/files/60242155107.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8108/8670/files/first_encyclopedia_of_science_usborne.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7237/3414/files/41355542541.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1826/4469/files/69981126999.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7519/0422/files/86185669101.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8677/4436/files/diwukevenepe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4211/0631/files/degradacion_y_contaminacion_del_suelo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4068/4697/files/35337734893.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3606/5438/files/10105050553.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8032/7076/files/50678193269.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2469/4942/files/ladavabogoroz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7328/1948/files/dokenirerujakepibikume.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0142/0696/files/phonetic_dictionary.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4555/2277/files/rebuvogime.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006beb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BEB | 5636 bytes |
SHA-256: 281d0b025cb1584a2565159e5741e2c811cfedb9e844e5d597a02fc3d0cc1aa2 |
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font_01_sfnt_off00007efc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EFC | 16444 bytes |
SHA-256: 8a156c6921ca8559315ffe6b2f5f0c1990c0cc5f8b337234d191fa9e13d450e0 |
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font_02_sfnt_off0000b1ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1CA | 16076 bytes |
SHA-256: cb07af63cc967bc725defeb60e0f94def8eca5b79d09fb04145a87b09fb96d38 |
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