MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a mass external link farm and an SEO redirector, indicating a phishing or malware distribution attempt. The embedded URL `https://dugedepap.ru/strik?utm_term=cuantos+ejes+de+simetria+tiene+un+trapecio+isosceles` is presented as a search result for a mathematical question to deceive the user. ClamAV detected this file as `Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0`, further supporting its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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External URI info PDF_URIPDF contains an external URL action
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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://dugedepap.ru/strik?utm_term=cuantos+ejes+de+simetria+tiene+un+trapecio+isosceles PDF link annotation
- https://funogefoxareso.weebly.com/uploads/1/3/4/0/134041001/b85143f9.pdfIn PDF document text
- https://s3.amazonaws.com/lorifumofelu/gipumoxusopezigarozowa.pdfIn PDF document text
- https://wudatoguji.weebly.com/uploads/1/3/4/8/134885495/630578.pdfIn PDF document text
- https://s3.amazonaws.com/jefobexapulow/guideline_value_for_land_in_chengalpattu.pdfIn PDF document text
- https://fitisasituwag.weebly.com/uploads/1/3/4/8/134846324/mavekasu.pdfIn PDF document text
- https://s3.amazonaws.com/musoxifuvitalo/how_to_use_ifb_convection_microwave_for_baking.pdfIn PDF document text
- https://letazofuwukuge.weebly.com/uploads/1/3/4/8/134869061/2963080.pdfIn PDF document text
- https://fitejajozifidom.weebly.com/uploads/1/3/0/7/130775998/xunape.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/c97ec0a4-566e-4106-93dc-949fa9d6c779/22685221032.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/479c174f-5119-46eb-a5ea-156a3f08b2a3/76436076234.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dfcff6db-fbe6-4044-9a7a-9afc23bf3936/99436951600.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9974cf4b-7eb2-47d8-990c-7610852bd302/87617209392.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/aa154c5e-6d1a-4d6d-8fa3-81900feaa89c/jijusebobob.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e0622b6e-c567-49b4-8c7d-8c994ff2462c/talk_to_me_in_korean_worksheets.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/73acde08-5405-46c7-8d33-0138f07197c2/asus_p7p55d-e_pro.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a91002ce-3eec-4847-8ef4-9d7c44c286cb/48894744302.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dbbc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBBC | 5200 bytes |
SHA-256: ff97edce40234b4c2bfd8bfc780daf75de14d6a56149135bf38348175f5a534c |
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font_01_sfnt_off0000ed4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED4F | 14320 bytes |
SHA-256: 62dbb351c96af6dabcb8d9d50508a52e04f2fde39a90d6bd4024604ddd236f77 |
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font_02_sfnt_off00011b2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B2C | 16072 bytes |
SHA-256: 3da9309f7c28e01a20d15285b754fad9116e6eb7744d168a0fff2950d6122081 |
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