MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The PDF contains a lure suggesting it is a syllabus, but it embeds numerous links, including one to a known malicious redirector at ttraff.com. The heuristic firings indicate this is a malicious redirector and a link farm designed to trick users into downloading further content. The document body itself is heavily obfuscated but contains the malicious URL, reinforcing the social engineering attempt to install a browser extension or viewer.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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.com/pify?keyword=cds+syllabus+pdf+for+ota In PDF document text
- http://files.eastsidehighwaydistrict.com/uploads/1/3/1/4/131438667/jogowe_resiwidi.pdfIn PDF document text
- http://files.hiltonheadislandinvitational.com/uploads/1/3/1/6/131637150/benepoxisu.pdfIn PDF document text
- http://files.nancyjanefarnum.ca/uploads/1/3/0/8/130814529/wuzanobibexeso_sotunekag_vuwebed_guvaxamewivusub.pdfIn PDF document text
- http://files.jarodhector.com/uploads/1/3/2/6/132682878/2923e1.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/1/0430/0495/2735/files/75798768891.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9814/4932/files/69413416236.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5797/1362/files/insatiable_tinkers_construct.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3818/7413/files/19043180485.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6986/6133/files/31677238011.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9060/8285/files/forgotten_shore_map_piece.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2725/7749/files/somopuwazulisa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6954/6395/files/kasovufiwokimezexe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7596/8928/files/zozum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3078/9800/files/active_causative_exercises.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2994/4730/files/historias_cortas_en_ingles.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2183/6193/files/pigiredekonesalijapagawej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2601/4630/files/gikafonusubono.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8184/3353/files/koleguwebazamimadaxopul.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_off00008581.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8581 | 5184 bytes |
SHA-256: f636a90b381fac08552302211b38cf63f5e7808dc33c787ed38f990a59b78777 |
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font_01_sfnt_off0000972a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x972A | 14824 bytes |
SHA-256: 833596bcb91d61b5383fed31ce350887fcd53dd28916fbb2172454149e138449 |
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