MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the primary malicious URL. The ML classifier strongly flagged this PDF as malicious. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content through seemingly benign links.
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=bahasa+arab+amiyah+saudi+pdf In PDF document text
- http://files.mairibudreau.com/uploads/1/3/0/7/130776864/ziwawajobigogefivane.pdfIn PDF document text
- http://files.davierespect.com/uploads/1/3/2/6/132681901/64447.pdfIn PDF document text
- http://files.englandaccounting.com/uploads/1/3/1/3/131379591/jofeluzikamepokud.pdfIn PDF document text
- http://files.antlerspecialtygoods.com/uploads/1/3/0/8/130813887/4000979.pdfIn PDF document text
- http://files.thebellhouse.info/uploads/1/3/0/8/130814900/d51f92.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/1/0438/7130/5896/files/679735746.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5790/5818/files/windows_modules_installer_worker.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0221/4046/files/6401549980.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6078/1475/files/form_130_u.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3673/5645/files/nadiniw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5308/8919/files/65332843640.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5331/8306/files/vulabemo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1414/4675/files/zajube.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5811/0363/files/lewefavopapapawej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5562/1031/files/najip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5381/8790/files/ct_trang_file_online.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/2128194791.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9306/5881/files/speaking_mathematically_variables.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3649/0398/files/applications_of_laser_in_engineering.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_off00007026.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7026 | 5540 bytes |
SHA-256: ee1616a6aa0fdc97cbdf839b1d5874a51bcffc81831e2aa4824035462214904b |
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font_01_sfnt_off000082d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82D5 | 11596 bytes |
SHA-256: 84147cea455fb126bc38b8afdfec4f4b0fd7fa639b99db140a08d4b4ff94f8cb |
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font_02_sfnt_off0000a87c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA87C | 20960 bytes |
SHA-256: b99f89c1e94a880d01dc28223d657304e7f422686be1ee3816ba7be6a35b648d |
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