MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged as malicious due to a critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that aligns with this finding. The presence of PRC/3D content and a large number of external PDF links suggests an attempt to obscure the malicious intent or engage in link farming, further supporting the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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PRC/3D content in PDF medium PDF_PRC_3DPDF contains PRC 3D content. PRC/U3D parsers have been a recurring Adobe Reader attack surface; treat as a related parser-exploit indicator rather than a specific CVE match.
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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.com/wix?keyword=lenguaje+escrito+morfosintaxis+funciones+de+las+palabras+pdf In 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/1/0437/2915/8295/files/cd_booklet_template.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0454/9544/files/resident_evil_afterlife_full_movie_english.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0539/3570/files/xonajunibozojirulijotel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0486/0328/files/letiperelaridi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1440/5793/files/ribigaxaxoz.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_795a27cc9831486e84d660e9bb962dff.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_b71178487f704287a6a27ae5abc15c90.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_b5f625c377d245b1b696cb30dbd315c8.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_460e621536cd40388d6caf65b8a8bf42.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_83ed7fecf43645cf9dda821df40c48f0.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9502/4023/files/nekutoserupob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7354/9974/files/32685257298.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0465/0159/3246/files/phyllo_pastry_sheets_recipes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7832/7199/files/19759836711.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8671/4782/files/linugavikuxeb.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_c4ad8f2148d84b52aa9d9178b43073df.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_ee522dcdb15c424eaa5624945089bed2.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_d7d526a8d92843e3980dc44cb9cb89af.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_c5696e3f709347e98e4e32ffb672a74c.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_off00016bb2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16BB2 | 5700 bytes |
SHA-256: 700bb06820c088a745cd481ddc434f6b2df6d5685f2e6e29df2920a1b81dc1bb |
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font_01_sfnt_off00017f12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17F12 | 11284 bytes |
SHA-256: 1990664cde4b2cf0df6e2e2295b17dde3690bbe91c3021f24952659128cd1522 |
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