MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains numerous links designed to appear as legitimate PDF downloads, but they redirect to a malicious URL. The primary redirector URL is `https://ttraff.ru/pify?keyword=cassandra+database+tutorial+for+beginners+pdf`, which is flagged as malicious. The document body and heuristics indicate a phishing lure related to a database tutorial, aiming to trick users into clicking the malicious link. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.
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=cassandra+database+tutorial+for+beginners+pdf In PDF document text
- http://files.frommairpad.com/uploads/1/3/1/4/131408854/b94a026b82033d.pdfIn PDF document text
- http://files.infinitely-natural.com/uploads/1/3/1/8/131871799/d81780cecd.pdfIn PDF document text
- http://files.jjkbarrelracing.com/uploads/1/3/0/7/130775859/1177648.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/1/0431/1253/0081/files/19136486835.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9424/5537/files/rozafusuwodobinowopaloluj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4217/7181/files/wijilaxizapi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2756/9576/files/sanoxodaki.pdfIn PDF document text
- https://zujamawukige.files.wordpress.com/2020/07/55476264335.pdfIn PDF document text
- https://xikunere.files.wordpress.com/2020/07/83060399003.pdfIn PDF document text
- https://zawamibidixa.files.wordpress.com/2020/06/zunarufexiremaw.pdfIn PDF document text
- https://fuzevibob.files.wordpress.com/2020/07/14403434677.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6880/1695/files/nadupezopumatifawosisoji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2508/8168/files/piligabudova.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5429/3402/files/napaxijala.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1701/8267/files/90582983867.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45292738862.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4686/3005/files/94213073733.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9546/5892/files/90074553748.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007d55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D55 | 5256 bytes |
SHA-256: 6a808af0c687f84eba0056040047745f40c7d92a10e92cf28d38f90ebe10e25b |
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font_01_sfnt_off00008f3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F3A | 10212 bytes |
SHA-256: 78731b2a186a0caa98130bee540973297c1421042d42fff9bdf7e1a374019c60 |
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