MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.cc/pify?keyword=sujet+brevet+2019+math%25C3%25A9matiques+pdf`. Additionally, it exhibits a PDF link farm behavior, with numerous links to external PDFs, including `https://cdn.shopify.com/s/files/1/0429/0006/2367/files/zenith_bank_aptitude_test_questions.pdf`. The document body, though partially corrupted, contains text related to exam preparation, suggesting a lure to entice users to click the malicious links. 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=sujet+brevet+2019+math%25C3%25A9matiques+pdf In PDF document text
- http://zonefiv.maxinewade.com/uploads/1/3/1/8/131857314/gisuxosuxeg-foduwizedos-mozaxituf.pdfIn PDF document text
- http://files.fishreeladdiction.com/uploads/1/3/1/4/131437306/276172.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/1/0429/0006/2367/files/zenith_bank_aptitude_test_questions.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4788/6743/files/gesoludozuxojemixof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2746/3324/files/bexemonepaxiwiledaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4234/6907/files/25723855604.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6829/3287/files/sample_business_plan_software_company.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2218/8701/files/90254710193.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7705/6165/files/pijeterir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7863/1072/files/zemokomu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7318/3643/files/46092520919.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_off00005f5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F5F | 6376 bytes |
SHA-256: be89c6da5b69e8a70b986a27a7251a21b3c44b3a429c7d68d4eaa2a43891246a |
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font_01_sfnt_off000074ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74AE | 1956 bytes |
SHA-256: 87f4dc9fc1dc24012f317389c1eb0370a9430534078bbe5b7f9ba8065666d42c |
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font_02_sfnt_off00007dcf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7DCF | 11512 bytes |
SHA-256: 993b3b49531b406937d6cb149ebef7861b0d7f7ef184c84b1e3fc7e56b1b054a |
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font_03_sfnt_off0000a343.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA343 | 16076 bytes |
SHA-256: c33faafd911d2c4e8fea0807a017527063dea1be9a25b30e85ccf6f7667e82b6 |
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