MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains multiple embedded links, with a critical heuristic identifying a redirector link to 'ttraff.ru' which is known for malicious activity. The document body and heuristics suggest a lure for free PDF downloads, likely leading to a phishing or malware download site. The ML classifier strongly supports the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=basic+civil+engineering+bhavikatti+pdf In PDF document text
- http://files.bryantcyr.com/uploads/1/3/1/4/131437061/6721342.pdfIn PDF document text
- http://raxozoxo.al-shields.com/uploads/1/3/1/1/131164250/kejojujunaragil-jeveperiv-desugigilotobep-jamokit.pdfIn PDF document text
- http://files.azpetscan.com/uploads/1/3/1/4/131407106/tuwon_wenenilofen_jerogopibir_jigemefavumex.pdfIn PDF document text
- http://files.aliceannephotography.com/uploads/1/3/1/3/131379447/xisejexopore.pdfIn PDF document text
- http://files.warrensburgheritagetrail.org/uploads/1/3/0/7/130775320/pisatafixapeviw.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/1/0433/4456/0281/files/lamumajujolazaxalugewe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0741/7253/files/6867265587.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4070/9527/files/makajonukoboramuwejokide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7381/4171/files/82394882046.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2949/4936/files/sinugak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8583/1070/files/75666490898.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1126/0062/files/98264201698.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4895/9141/files/sebinadafogago.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3431/9776/files/vureguvojadut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9676/8661/files/69660348660.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_off00005ed9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5ED9 | 5728 bytes |
SHA-256: 727fa37f3ecea3add2f275635fc06154a5d7b065df13be7e18643c3881bf6067 |
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font_01_sfnt_off00007254.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7254 | 10468 bytes |
SHA-256: b1f2e80c92fc1c3357a5a6c4de599b6813e90f98eb57e78054da62c865e3a753 |
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font_02_sfnt_off00009655.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9655 | 17436 bytes |
SHA-256: 6084c565405e33d6146fb6b5846a0fa9dea45a65c169dcba9a26cc76509397ea |
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