MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links to other PDFs, a technique often used for SEO poisoning or to obscure malicious destinations. One of these links, 'https://ttraff.com/pify?keyword=un+amor+de+invierno+pdf', is identified as a known malicious redirector. The ML classifier also strongly indicated maliciousness. No scripts were extracted, and the document body was heavily obfuscated.
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.com/pify?keyword=un+amor+de+invierno+pdf In PDF document text
- http://files.odysseyaromatherapy.com/uploads/1/3/1/3/131380546/luzizulibatem.pdfIn PDF document text
- http://files.lakeshoremiddleschoolpto.org/uploads/1/3/2/6/132683017/6e9e21c5312a0c7.pdfIn PDF document text
- http://files.guitarvguitar.com/uploads/1/3/1/4/131453897/5309067.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/1/0431/8098/2436/files/wobajokege.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3991/5164/files/love_after_marriage_romance_urdu_novels_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1231/6584/files/84000925260.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0667/3574/files/remington_serial_number_lookup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/6160/4505/files/nyc_210_form_2015.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3009/3728/files/hunger_games_2_ita.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54058680795.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0944/0917/files/61453166190.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2046/5829/files/jefuzatokexejisifage.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8720/0418/files/my_crown_fell_off.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0408/4899/files/lexigow.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000072c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72C8 | 6440 bytes |
SHA-256: 629123bfde0685c5f69bbdd27ec008bde0224d5c30af1dabb990f6ee33ea778e |
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font_01_sfnt_off000082bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82BC | 5028 bytes |
SHA-256: a4a18983354da4b05fbb0e5d0638dc2d6a6c90aef4c55b6c723c81b82bb659b7 |
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font_02_sfnt_off000093c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x93C6 | 5648 bytes |
SHA-256: db539eb0b13aaefa3decf1bd0b6f31ff40314dd45086615180febf5ef6030708 |
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font_03_sfnt_off0000a379.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA379 | 11204 bytes |
SHA-256: 8eb5b3cd991a5cf2a643c4d708f147c6eabbd73235628733f1c4154a27f7c5f1 |
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font_04_sfnt_off0000c830.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC830 | 16548 bytes |
SHA-256: 569b73f965e4edd202bd5b147228be71cf58be4cd74f7d138c1d3fd9f0eab53c |
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