MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link that redirects to a known malicious URL, disguised as a syllabus download. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, many of which are hosted on Shopify. The presence of a 'download button' heuristic further supports the lure-based attack pattern. No scripts were extracted from this sample.
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.ru/pify?keyword=amu+b+tech+syllabus+2020+pdf+download In PDF document text
- http://novufo.tanurhideboerne.com/uploads/1/3/1/3/131380213/17cb9a5.pdfIn PDF document text
- http://files.r3dband.com/uploads/1/3/0/7/130775245/442a6d9dc.pdfIn PDF document text
- http://files.bevingroup.com/uploads/1/3/0/7/130740323/4854237.pdfIn PDF document text
- http://files.thesetterfamily.com/uploads/1/3/1/0/131070604/xosil.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/1/0449/1522/8839/files/avinash_dixit_games_of_strategy.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4323/9589/files/javascript_map_to_json.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3791/7333/files/acid_derivatives.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5004/9446/files/american_girl_collecting.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5204/7255/files/sifiluw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8055/6452/files/learn_spanish_book_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9799/5941/files/bopatatubinibafebiwufep.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8419/9574/files/chrome_cast_extension.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1541/2632/files/fonatawi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6397/5835/files/pastel_accounting_tutorials_for_beginners.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2798/8634/files/visotoselarupupude.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4903/1592/files/88993059185.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2037/6474/files/boxawanafegurusixo.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_off000065d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x65D1 | 5896 bytes |
SHA-256: ae1420e254787f11d37a42393a0c7fcd9f0aefa4684a0913ed5ddaa8054bec9e |
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font_01_sfnt_off000079e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79E0 | 14716 bytes |
SHA-256: bb8ff777cc1dba7842dcae4a010b42a969d73eb6592ebda6c8f79719bf04e888 |
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