MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The document body, though heavily obfuscated, contains URLs that are also present in the heuristic findings. The primary attack pattern appears to be a lure to a malicious redirector, potentially for SEO manipulation or to serve further malicious content.
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=amsterdam+mapa+turistico+pdf In PDF document text
- http://files.lincolnsbloomington.com/uploads/1/3/1/8/131872178/3274143.pdfIn PDF document text
- http://files.distinctmedia.ca/uploads/1/3/1/3/131380848/tikojan.pdfIn PDF document text
- http://files.oakislandcompendium.ca/uploads/1/3/0/7/130776619/bokatof_gutawab_linozobipepevak.pdfIn PDF document text
- http://files.monteranderson-author.com/uploads/1/3/1/6/131637896/lezenuzunujananit.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/1/0433/5386/6408/files/jerodubuxevabujekereg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2450/6266/files/nevuruwejide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5774/0957/files/grammar_games_and_activities_2.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5395/6758/files/vezezirujajerune.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8772/4704/files/niwegoxovuvutat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1849/2824/files/97319251094.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0026/5878/files/calculus_3rd_edition_rogawski_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2191/0694/files/lusulajaxizufelixozi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9893/8274/files/8114384528.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5009/9107/files/8010663821.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5405/6092/files/xozokili.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1474/8322/files/itsyourturn_com_make_your_move.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4577/2698/files/54321235165.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_off0000651a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x651A | 5260 bytes |
SHA-256: 854361aeadf6de94b705cea4b3104b33c2bb7a4130be00bb2f921f2732967198 |
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font_01_sfnt_off000076dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76DD | 1800 bytes |
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d |
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font_02_sfnt_off00007f6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F6B | 10636 bytes |
SHA-256: 5cef6e3db73a5a3967747d258771dcacc0630d72e02ae0a7f6581cc01b23dd73 |
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