MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. This indicates an attempt to redirect users to potentially harmful content. Additionally, a PDF SEO link farm heuristic was triggered, suggesting the document is part of a larger scheme to generate traffic or distribute malicious links. The document body, though heavily obfuscated, contains text related to medical guidelines, likely serving as a lure.
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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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=chest+guidelines+anticoagulation+for+atrial+fibrillation In PDF document text
- http://files.swimpristine.ca/uploads/1/3/1/3/131380619/6d7962e2d.pdfIn PDF document text
- http://files.wesleytbrown.com/uploads/1/3/0/8/130813860/e04440f9a9e7.pdfIn PDF document text
- http://files.lezcycles.com/uploads/1/3/1/3/131379554/sibeti-jomopoxowaj-fojogiku.pdfIn PDF document text
- http://files.supernaturalentertamitedproductions.org/uploads/1/3/1/4/131455883/visemomitowezij-fezaweku-xevut-kixivim.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/1/0441/4016/7320/files/ribapegividupofewezup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3077/2901/files/sagomubinudotafawijamopa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5259/6374/files/tuwabonepiw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5609/5644/files/lugojatozutadaxoja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9587/5989/files/17114745817.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1425/7820/files/1075909121.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7904/9121/files/62006759428.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9866/1279/files/55806859186.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0248/6180/files/37981902118.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9915/2799/files/67239086060.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6377/9240/files/rarazaluga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5650/5756/files/64657162706.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6934/8763/files/kodomirasovewam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9977/5381/files/47247601930.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_off000175f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x175F5 | 5328 bytes |
SHA-256: 916e6e33fddd07f79f3a8ae274ced2c65e6efd39a130bce8d975ee7d9cd5fc27 |
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font_01_sfnt_off00018804.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18804 | 10396 bytes |
SHA-256: eb8fddc6d9100302834b9ab0c7cd5faf22077404df23ceeb374fcf926da3e6a2 |
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