MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a high number of embedded links, many pointing to external resources, a technique often used to obscure malicious destinations. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, suggests a lure related to 'online instructions and guidelines', aligning with phishing or malware delivery pretexts. No scripts were extracted from this sample.
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/pify?keyword=ctcae+v3.+0+online+instructions+and+guidelines In PDF document text
- http://files.tsipimani.com/uploads/1/3/1/1/131163736/8896440.pdfIn PDF document text
- http://files.associazione-camelliarubra.org/uploads/1/3/1/4/131453540/6142359.pdfIn PDF document text
- http://files.handcraftersbarn.com/uploads/1/3/2/8/132816165/8eb2eb59.pdfIn PDF document text
- http://files.equatorial-intraseasonal-oscillation.com/uploads/1/3/0/7/130739084/87f7d893cd5.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/1/0437/2873/2314/files/41824866454.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9749/6477/files/wanizirabadotemewuxa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3175/6957/files/94010742507.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2281/0268/files/togam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tevedizulav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7055/3238/files/jujokotejeweberumogareto.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85450973079.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0315/0499/files/xafotapowerezojomupo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3504/1702/files/xatigolasexopeji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6981/7511/files/92556345602.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7545/2569/files/17054620009.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_off00009259.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9259 | 5412 bytes |
SHA-256: e8e127ba31d3c60f82ad5eca29c002fd58ebe82b2dc2a8df9831498dffb7564d |
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font_01_sfnt_off0000a4c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA4C6 | 10504 bytes |
SHA-256: ad566f016264590845d5135bf12e9e9656249679047fd8cb86fc8b709f423a28 |
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font_02_sfnt_off0000c8d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8D4 | 16156 bytes |
SHA-256: 2783b27bdad0ea490eb257d9925c605908c92de4f0a2d3163d52617c63ef321a |
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