MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF was flagged by a critical heuristic for containing a malicious redirector link and a large number of external links, indicating a link farm. The primary malicious URL identified is https://ttraff.link/pify?keyword=escuela+estructuralista+caracteristi. While no scripts were extracted, the structure and link farm suggest a phishing or content distribution scheme. The ML classifier also strongly indicated maliciousness.
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.link/pify?keyword=escuela+estructuralista+caracteristi In PDF document text
- http://files.tokyogrillkenner.com/uploads/1/3/1/4/131437725/c821a67b32.pdfIn PDF document text
- http://nizufape.janinemillerdelany.com/uploads/1/3/0/7/130776445/xasefuwubuvamijini.pdfIn PDF document text
- http://files.erinenberg.com/uploads/1/3/1/3/131398253/fe7c3ac1.pdfIn PDF document text
- http://files.kevindorst.com/uploads/1/3/0/9/130969980/6a3307351c683c0.pdfIn PDF document text
- http://files.bradyvu.com/uploads/1/3/1/0/131070481/jivanutunugefos.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/1/0437/7939/1637/files/two_meteoroids_are_heading_for_earth.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2502/2621/files/36243712855.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0364/2007/files/rerefisuka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2424/5155/files/comfort_zone_heaters_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7056/3239/files/99882935758.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0462/4505/2570/files/29221161814.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0461/9128/0277/files/geethanjali_video_songs_telugu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0820/4704/files/difurakumategorusebuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7281/3211/files/differences_between_meiosis_and_mitosis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2897/1674/files/4092909479.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_off0000826c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x826C | 4416 bytes |
SHA-256: ca28c6ea0f1a5a1db1f8a90eae7c2d61ebb4cbc2ca9cd826e5d23e6a2f6beafa |
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font_01_sfnt_off00009179.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9179 | 11352 bytes |
SHA-256: 76b95b4f82fe80a9f5ca41b75502048f2fa14d84b6fed6669f1c9c636065b38f |
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font_02_sfnt_off0000b669.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB669 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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