MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many pointing to a redirector service that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be part of a link farm designed to lure users with promises of free PDF downloads. The ML classifier strongly indicates maliciousness, and the overall structure suggests a phishing or malware distribution attempt.
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.cc/wb?keyword=useful%20phrasal%20verbs%20for%20ielts%20pdf In PDF document text
- http://petufi.griffinace.com/uploads/1/3/0/7/130739590/xederotanoduluzu.pdfIn PDF document text
- http://sener.gregadamsart.com/uploads/1/3/2/7/132712358/5163429.pdfIn PDF document text
- http://siton.sathercreative.com/uploads/1/3/1/8/131871699/puledojif_xezawotuporeda_fiwidix_situnuwofu.pdfIn PDF document text
- http://files.elfangelscreationslloyd.ca/uploads/1/3/1/4/131438069/xireduxakuvuda_sisuvurawujo_vobajexazugeme_jimifazizow.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0429/8014/7359/files/sebuvamavel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4419/9829/files/musixusejunujefilo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7319/1580/files/25562982502.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/2329/6680/files/message_app_for_samsung.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5055/6821/files/35352844461.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6942/3269/files/45557585492.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0715/5110/files/85143073350.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0354/3715/files/kopuna.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6332/0469/files/joferuko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1926/3397/files/pujuvetiwojudu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/1121/4245/files/analysing_an_advertisement_worksheet.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006070.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6070 | 5096 bytes |
SHA-256: 5315a99fb460b99f6ddfe2edc234268d6d1659518a5b19ac6d7f88dd0cd7d4de |
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font_01_sfnt_off000071d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71D6 | 10508 bytes |
SHA-256: d9c636da33f5f0db02be4a40ea45d63f4c17d70963797c31cd35953da2f4484a |
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font_02_sfnt_off00009530.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9530 | 16092 bytes |
SHA-256: 9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2 |
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font_03_sfnt_off0000a9f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA9F7 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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