MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a malicious redirector link disguised as 'Cambridge english advanced exams pdf'. This link, 'https://ttraff.cc/pify?keyword=cambridge+english+advanced+exams+pdf', leads to a link farm hosted on cdn.shopify.com, which in turn hosts numerous other PDFs. The ML classifier strongly indicated maliciousness, and the PDF structure itself contains multiple external links, suggesting a phishing or redirection scheme.
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=cambridge+english+advanced+exams+pdf In PDF document text
- http://tipunos.chemungcountyswcd.net/uploads/1/3/1/8/131857920/7717774816a4.pdfIn PDF document text
- http://files.positiveposturenz.com/uploads/1/3/1/4/131483550/sivaf_polatafi_zuwovil.pdfIn PDF document text
- http://wakumu.earthquakeearlyalert.com/uploads/1/3/1/4/131437736/vesejeduxe-nubomobef.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6726/0576/files/collector_plates_value.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9102/4280/files/zawidubimun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3088/8094/files/dezufitizo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1918/9915/files/calendar_2020_uk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3884/2779/files/built_environment_books.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6759/6184/files/zorufajebagukir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2009/7448/files/10391508225.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7192/1571/files/88046630813.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1479/1069/files/60340489061.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2135/2606/files/jodojovojijuzavajejom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1576/5148/files/username_and_passwords_nod32.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0507/4838/files/58593656011.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7183/1193/files/moloferozi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006401.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6401 | 5740 bytes |
SHA-256: 28e23945d7beda1eb6801384494ee21ffcff8971a19e6d2e4ddb56063ca98812 |
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font_01_sfnt_off00007764.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7764 | 9864 bytes |
SHA-256: ec789aa7f963f964c0849d3c2fd636606e6570e214da760f066a21f56eef7c98 |
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font_02_sfnt_off0000997e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x997E | 3060 bytes |
SHA-256: bb965ea0515e7499bb47638dd5c820c8824ea93d586ac0d8f4a8f758a0d32bc6 |
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