MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external PDF files, creating a link farm. One of these links, disguised as academic content, redirects to a malicious URL (https://ttraff.cc/pify?keyword=upsee+syllabus+for+b.+tech+pdf). This suggests a social engineering attack aimed at driving traffic to malicious infrastructure, likely for further exploitation or malware delivery.
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=upsee+syllabus+for+b.+tech+pdf In PDF document text
- http://files.adventureswithsonatsays.com/uploads/1/3/1/3/131383959/vekafipoderodemu.pdfIn PDF document text
- http://files.yourdayweddingsindiana.com/uploads/1/3/0/7/130776619/kixinukisabefomu.pdfIn PDF document text
- http://files.ccfammo.com/uploads/1/3/0/7/130775431/a3303dfff0b4b.pdfIn PDF document text
- http://files.shoestotheworld.org/uploads/1/3/1/8/131871954/dimironuj_retifupubafuk_fagixe_tutosagok.pdfIn PDF document text
- http://files.naturallyminded.co.uk/uploads/1/3/1/4/131438176/7af975db7.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/1/0434/6124/7129/files/aashto_lrfd_bridge_design_specifications_7th_edition_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0740/9310/files/bending_moment_diagram_formula.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1653/4685/files/formal_and_functional_grammar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1478/1085/files/redefining_airmanship.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0781/9422/files/7333762428.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9766/1348/files/ultimate_wilderness_pathfinder.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0058/5636/files/binomial_distribution_when_to_use_and_cdf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9784/1063/files/semi_detailed_lesson_plan_in_english_grade_8.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8489/7692/files/naxuzu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1063/7476/files/60595507886.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7251/0362/files/70820403046.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7272/4885/files/atomistique_cours.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_off00006dac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DAC | 5508 bytes |
SHA-256: 8003e1c3c7bcb3f8d9d75236a290b8d39e367ff7ee3008f685917ab591af2401 |
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font_01_sfnt_off00008061.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8061 | 15184 bytes |
SHA-256: 4c3bdf9c26e09ec1cf5b29791591a23e158094d63c8474e34e38a62f96dc0476 |
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