MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that appears to be part of this redirection scheme. The presence of a link farm and redirector suggests an attempt to lead users to malicious content, likely for phishing or malware distribution.
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=ontology+in+computer+science+pdf In PDF document text
- http://files.makariosinternational.org/uploads/1/3/2/6/132695663/lekegujapomozuve.pdfIn PDF document text
- http://files.kellytruax.com/uploads/1/3/1/6/131607712/pexawuxebare.pdfIn PDF document text
- http://files.aliciabanta.com/uploads/1/3/0/9/130969343/sosotekotim-zojefabalezi-sazozewiz.pdfIn PDF document text
- http://files.theshootinghand.com/uploads/1/3/1/4/131407057/59eeadb08e.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/1/0435/0941/6095/files/merge_linux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jisabisagubimebusogapasof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2197/6220/files/bemanoribonorekaxovubu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87967576867.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9340/9438/files/37061154440.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0131/4456/files/limitafadururefikabe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2290/7554/files/getavepufuwiboguxipodof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1392/3228/files/tuperuwapejusoruz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0961/3725/files/88351049554.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0883/5234/files/kosuripifoxanigoxebut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1463/5165/files/xafelujovisaxepa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0620/3803/files/bauchi_state_university_admission_list.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2947/9076/files/41359755839.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1845/2120/files/76042672230.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000065b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65B3 | 5276 bytes |
SHA-256: 1df3c4cd032709a152476cddccc25b947880ef52c6ffa87eed3bb8954a3b2047 |
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font_01_sfnt_off0000779b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x779B | 9988 bytes |
SHA-256: 0840283cd021b167f790e858397d0070d7256bcdc7e3584184675e82cf1394e1 |
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font_02_sfnt_off000099cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x99CD | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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