MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to a university syllabus, likely used as a lure. The primary malicious IOC is the redirector URL which is designed to lead users to further malicious content.
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.cc/pify?keyword=bharathiar+university+bcom+ca+syllabus+pdf In PDF document text
- http://files.sweetnnaughty.ca/uploads/1/3/2/8/132815318/ce0cb.pdfIn PDF document text
- http://files.maysclub.org/uploads/1/3/1/6/131636855/993968.pdfIn PDF document text
- http://files.inclusive-arts.com/uploads/1/3/0/7/130775974/7c671a6190cc1c0.pdfIn PDF document text
- http://fedorahosted.org/lohitIn 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/1/0428/9835/8432/files/tanedikefiresemur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5817/5908/files/33446437562.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3349/3658/files/80499566395.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2007/4663/files/xujavosisako.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4647/6708/files/97532485012.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6847/9893/files/61198890762.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9284/4448/files/46580996706.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5054/7870/files/batefunoripum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2938/8699/files/puvudajenerojewizigole.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6482/7805/files/19359623036.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4532/8808/files/32209065584.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0029/9683/files/45877047278.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_009_off0000d60a.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xD60A | 4628 bytes |
SHA-256: d97377089687a897bcbb3d5a4fe925d3a744eb41ac3d39caf3ea2337d638fc3c |
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font_00_sfnt_off0000763a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x763A | 5628 bytes |
SHA-256: 5b43e5dee4276598ddb75a65809ed3bb49b57429e38f744e6cc96d8da14da486 |
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font_01_sfnt_off0000892c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x892C | 2320 bytes |
SHA-256: d97e055e11de589539a249dfdf9c15aca1e9caf4700104d1763a3a5d87d8f7f2 |
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font_02_sfnt_off0000937e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x937E | 14456 bytes |
SHA-256: 5166c9f7b1b2dbeba718d4a2b7ecfab502eb59a3248cffebd709e21682418034 |
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font_03_sfnt_off0000c082.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC082 | 16224 bytes |
SHA-256: 207faf14306426b668b87aba0c9d447b8ba40b67f0f7b18660ffa0d3c8132265 |
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