MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=examiners+report+edexcel+history+2018'. This URL is likely used to redirect the user to a malicious site. The document body also contains this URL and numerous other links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier also strongly flagged this PDF as malicious.
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=examiners+report+edexcel+history+2018 In PDF document text
- http://files.2020idocs.com/uploads/1/3/1/4/131482886/8a665a60c50913.pdfIn PDF document text
- http://files.tightlinesflyfishing.com/uploads/1/3/1/0/131071037/6299ee2b3d88.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0437/1460/9305/files/susesavikokisivabasi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4296/3613/files/az_103_syllabus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0686/8126/files/teoria_del_liberalismo_economico.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2720/2205/files/web_url_to_converter_online.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6661/2119/files/kozulalufo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0079/9140/files/ansys_cfx_solver_theory_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7381/4171/files/wazibo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9880/7202/files/90507468588.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7408/3233/files/36563908564.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1495/4908/files/nujigojunanavidaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/2240/7064/files/5070761140.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5883/9198/files/57715427601.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7446/7478/files/candy_luke_davies.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000a46f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA46F | 5748 bytes |
SHA-256: 2e51354a73f50b425c6dab26bbda15981fef77742a7e1efe303f9222c6cbc7a5 |
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font_01_sfnt_off0000b7db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7DB | 15800 bytes |
SHA-256: c20d787594334c4f983f82f7ab04722063292456849e74aebb53180d1e8b24d2 |
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font_02_sfnt_off0000e901.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE901 | 16204 bytes |
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15 |
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font_03_sfnt_off0000fe2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE2F | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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