MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document contains numerous links, many of which point to a redirector service that ultimately leads to malicious infrastructure. The document body, though obfuscated, contains a URL that is also present in the redirector, suggesting a phishing or scam lure for a legal text. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector link confirms this.
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.ru/pify?keyword=bittencourt+penal+volume+2+pdf In PDF document text
- http://wedodu.nicolewebster.ca/uploads/1/3/2/6/132681352/3877823.pdfIn PDF document text
- http://dolipulu.purposefulgrowthcoach.com/uploads/1/3/2/7/132712615/31d4455ea8d8b0.pdfIn PDF document text
- http://files.galgoamigo.com/uploads/1/3/2/7/132740836/e6a9ab3a9f.pdfIn PDF document text
- http://files.artronshop.com/uploads/1/3/2/7/132740260/futapiv-zajufedodufo-kisurozoluxi.pdfIn PDF document text
- http://files.intheloopradio.net/uploads/1/3/2/7/132741052/2586231.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/1/0431/0820/4704/files/7859321899.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8918/2376/files/57067497970.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0866/2440/files/2763117048.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/1007/6321/files/arithmetic_by_rakesh_yadav_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8013/7369/files/labovadisiwotifadotir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8684/7903/files/behavioral_patterns.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3756/4823/files/2256296550.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3839/8869/files/diablo_2_blizzard_sorc_build.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8649/5397/files/8364188588.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2329/3864/files/java_programming_book_bangla_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9105/7058/files/ayushman_bharat_hospital_list_punjab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9315/5235/files/xijabawipisosunomonetowo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8390/6724/files/cok_auto_typer.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_off00004efb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4EFB | 5244 bytes |
SHA-256: ecf4af912a0e49473015e20cb739ba730c04a2fc79c4a6dbbc0e06b0305b0bc5 |
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font_01_sfnt_off000060b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60B7 | 10040 bytes |
SHA-256: 5fb1833b430a5e6d20589251d9afdee3dc9c8308b7968b11b38a4eabb5532b5d |
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font_02_sfnt_off00008317.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8317 | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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