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 domains that appear to be part of a link farm or SEO manipulation scheme. One critical heuristic identified a link to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the redirector found in the heuristics, suggesting the document's primary purpose is to lure users to malicious sites. 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=curriculum+development+book+by+purita+bilbao+pdf In PDF document text
- http://files.rcdavis-tellinstories.com/uploads/1/3/1/3/131383624/ebc2656e5828c5.pdfIn PDF document text
- http://files.f-y-t-a.com/uploads/1/3/1/3/131380107/vurimemotosatewedosa.pdfIn PDF document text
- http://noxug.giftsbydeb.com/uploads/1/3/2/7/132741555/bobapolut.pdfIn PDF document text
- http://files.sharaimage.com/uploads/1/3/1/0/131070407/pozaxan.pdfIn PDF document text
- http://files.notsogrownuppodcast.com/uploads/1/3/1/3/131383959/8d3dfa7.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0440/7338/6136/files/roll20_token_border.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9340/2534/files/davuzedewum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4542/7102/files/pdf_to_word_converter_nitro_online.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1751/8751/files/767816103.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2046/7869/files/sufex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7899/1520/files/17233372602.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8446/3784/files/jajiwowabe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/9141/5460/files/comparing_fractions_word_problems_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8120/3873/files/80964707523.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4246/3126/files/55164474516.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0897/5263/files/uk_bribery_act_deutsch.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00014fa8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14FA8 | 5392 bytes |
SHA-256: 405c03d83fc66a8d022fe9b72ed7739d3f5151681b137a42c56e1e0027807689 |
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font_01_sfnt_off000161ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x161EE | 13380 bytes |
SHA-256: 1c5d8660d580dd3c9c84983a95e6454fcdf95cdca05f95885403374fd58c4a87 |
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font_02_sfnt_off00018cfe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18CFE | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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