MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=acoustic+neuroma+pdf', suggesting a lure related to medical information. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm strategy for SEO poisoning or traffic generation. The ML classifier strongly supports the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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=acoustic+neuroma+pdf In PDF document text
- http://diselezi.steinwaywhisperer.com/uploads/1/3/1/4/131482975/8370170.pdfIn PDF document text
- http://files.silverdollardogs.com/uploads/1/3/1/8/131871605/d43090b354.pdfIn PDF document text
- http://files.wearesrta.org/uploads/1/3/1/8/131871699/digudarin-fobunitatuniwi-panevi-lezumikopuso.pdfIn PDF document text
- http://files.lightingcreativefires.com/uploads/1/3/0/7/130739833/da7ebb9d.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/1/0431/1885/4306/files/kewetanavivotuporuzero.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kekesapenogetiru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3510/6200/files/15126728593.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8611/1137/files/37739720697.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1190/7488/files/english_story_for_learn_english.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7423/8102/files/zujema.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1733/1100/files/home_depot_grants.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ruwisosipopiwusanitilowaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8481/5259/files/pdf_to_dwg_converter_free_download_zamzar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6989/8909/files/nagisadulaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2756/9576/files/10241748880.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8921/6167/files/25012138460.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9018/2304/files/assembly_language_programming_and_organization_of_the_ibm_pc.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1014/6983/files/14378655905.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_off0000c1ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1ED | 5260 bytes |
SHA-256: c317825da13b379cad73e8c1212b46e620b35ec5831ba6913499d8c32290072a |
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font_01_sfnt_off0000d3b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3B7 | 10380 bytes |
SHA-256: eb4865834d2c47d11c9873abfaa4bd7bdcb82fa3522f80a0882eb66959def740 |
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