MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Multiple heuristics point to the document acting as a link farm, directing users to various external PDF files hosted on potentially compromised or disposable domains. The presence of embedded URLs and the PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristic suggest a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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 http://lagostena.it/userfiles/files/mekepomafuwapanazutapure.pdf
- https://gites-les-bardots.com/userfiles/file/vamilonefikopasufaxe.pdf
- https://penzion-palice.cz/content/viwobavidabivexonari.pdf
- http://yhbinternational.com/userfiles/file/65427996867.pdf
- https://martas.vodrsport.cz/uploads/files/xezal.pdf
- http://hiddenforrest.net/clients/76790/File/piwonisumojew.pdf
- http://140.121.161.111/ckfinder/userfiles/files/88439238730.pdf
- http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1608b7a39daf90---14734674202.pdf
- https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/iv69rmf9j1mdc499q9p5p9pmb7/56093466556.pdf
- https://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/58979a6ba529482f9599f677dc4438e2/sofawaluxuximoluzag.pdf
- https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/2087eeee4c159358745a927467015594/dikusubojararegibotuxagip.pdf
- https://shayangroup.net/wp-content/plugins/super-forms/uploads/php/files/48342702da6a97f452e3c220fce46f4c/27261415482.pdf
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/ae82d8f0c2095ecc0997be0c41a5d8db/razusarazobibaz.pdf
- http://j-line.ca/fck_upload/file/1193437995.pdf
- http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/160821dcae4b1f---pokufazotuvusus.pdf
- https://searchlink.org/userfiles//file/bateruzipajazupozo.pdf
- https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/188eed3de1540a6123c5fda1e63c0116/goregajaxefumojalowevi.pdf
- http://cappellastudio.it/userfiles/files/11862244064.pdf
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/dd5ac5edb147038113aa371f5b015097/66085379536.pdf
- http://solamsys.com/userData/board/file/20323084947.pdf
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/e1a4hkq4opi6q807gqkfjrsq9v/wajumagimaza.pdf
- http://anabakorea.jp/userfiles/file/dezogutuwunexanurigu.pdf
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/3fed048bff814f27f7737d8713477e1a/1892687014.pdf
- http://shadesvalleymounties1969.com/clients/868959/File/furixo.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=cordova+plugin+create+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cb37.bine5e17b48e014821d613198e9578bfff8e8146231d6dd0d3443ad6bb6c047bc23 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB37 | 17760 bytes |
font_01_sfnt_off0000f95c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF95C | 16792 bytes |
font_02_sfnt_off00011173.bin4c24f3be857aeb58a8b5e258dd8147774b84d49706f8ca7c4d5e5c595998dc63 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11173 | 10824 bytes |
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