MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The embedded link, presented as "Core java basics notes pdf", resolves to `https://ttraff.com/wix?keyword=core+java+basics+notes+pdf`. This URL is likely part of a phishing or scam campaign designed to trick users into visiting a compromised or malicious website. The PDF also exhibits characteristics of a link farm, with numerous external links, suggesting an attempt to manipulate search engine results or distribute traffic to various sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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.com/wix?keyword=core+java+basics+notes+pdf In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static.usrfiles.com/ugd/1fa6dd_dfbe95d837114b7cb258bf33042d5eb3.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b52961_539ab6c7627e4814a510f71c4a65a62b.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_875461cfcc4b485691aa70b021992d2b.pdfIn PDF document text
- https://static.usrfiles.com/ugd/e3ed1f_9cd3dafe50824caf8979ace6356fa9c6.pdfIn PDF document text
- https://static.usrfiles.com/ugd/89363e_eeab9efe986544dfb250bf4f8ee5515e.pdfIn PDF document text
- https://static.usrfiles.com/ugd/5b5da7_c5f96984d45a44479f9f5a95f4ad6cb6.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_e268caaef2da41fcadac0c154334b4f2.pdfIn PDF document text
- https://static.usrfiles.com/ugd/e4ee87_16d58bda222c4a0c89a49d595a2f9699.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0462/3692/6112/files/absorbancia_y_transmitancia_infrarrojo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0885/2117/files/wopafikivetava.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1608/5916/files/aladdin_complete_series.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4395/3563/files/kirby_table_flip.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn 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 |
|---|---|---|---|
font_00_sfnt_off000061a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61A5 | 6568 bytes |
SHA-256: a4af041a1f0d4c38f6ad1bf96ad04d86226b7158e00c36bfafa620d2932d04d4 |
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font_01_sfnt_off000071f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71F3 | 5296 bytes |
SHA-256: 6afc721c1ef40e4d5428176c59e2b8166c8370d50ce02aef1201c0ee8446c54b |
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font_02_sfnt_off00008401.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8401 | 1804 bytes |
SHA-256: 559e339ebb012a4711299e9f436f2accabb026881398d3942dea161b76ad44a3 |
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font_03_sfnt_off00008cdf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CDF | 10576 bytes |
SHA-256: a4f559ab57482ce04aa7332a0181cd5f39fcdf9adf61f1dd63132c7f99d11f9b |
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font_04_sfnt_off0000b108.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB108 | 16148 bytes |
SHA-256: 51babe3b44e703ca5a92278b053c112c5c116674d3b708c8e2cb3e4aa6bd9a04 |
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