MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious intent, including links to known malicious redirectors and a large number of external PDF links designed for SEO manipulation. The document body, though heavily obfuscated, contains URLs that are likely part of a phishing or malware distribution scheme. The presence of a 'download button' lure further supports the malicious intent.
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=past+simple+irregular+verbs+exercises+pdf+macmillan In PDF document text
- http://files.whitewavemedical.com/uploads/1/3/0/7/130738803/dedozul.pdfIn PDF document text
- http://files.fortheloveofallthingsitalian.com/uploads/1/3/0/7/130775751/liwake.pdfIn PDF document text
- http://tosaki.bishophomeservices.com/uploads/1/3/1/4/131453046/7900551.pdfIn PDF document text
- http://files.iridescentideas.com/uploads/1/3/1/4/131406288/gosunebepupaf.pdfIn PDF document text
- http://files.killianhsmusic.com/uploads/1/3/2/7/132740214/d7e1fd3.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/1/0432/7420/7387/files/64503456967.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1582/3772/files/guvebufimuv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8220/3801/files/xitisojimefonikezizur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/47171602999.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6163/1389/files/77704692002.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0639/3496/files/smokey_and_the_bandit_soundtrack_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9033/7189/files/11523263650.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6275/5490/files/71318185180.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/4336/0663/files/human_body_anatomy_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4260/9051/files/clinically_oriented_anatomy_of_the_dog_and_cat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/3671/7735/files/houston_tx_zip_code_map.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000084d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x84D9 | 5744 bytes |
SHA-256: 86690c17d9da263f2e160aa753c7ca216a4a41964b959f6c851ba9b0b73214cf |
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font_01_sfnt_off00009848.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9848 | 10288 bytes |
SHA-256: c96f591fba6f722da2b87e049423d9371ef2b2d7095909704927d314f834b9c6 |
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font_02_sfnt_off0000bb5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB5E | 16060 bytes |
SHA-256: df1d2c903cabdf2976887e260da0b25217edeb5ce2b71f315001024534e8e210 |
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