MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, suggesting it functions as a link farm. The embedded JavaScript likely facilitates the redirection to these malicious sites, which are probably used for phishing or distributing further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://irlanc.ru/uplcv?utm_term=carta+para+mi+novia+en+su+cumplea%C3%B1os+que+la+haga+llorar PDF link annotation
- http://rybarict.cz/webpagebuilder/ckfinder/userfiles/files/55679625499.pdfIn PDF document text
- http://harasim.cz/uploaded/files/bamigirodotuforagurepe.pdfIn PDF document text
- https://pass-eco-energies.com/ckfinder/userfiles/files/50317346400.pdfIn PDF document text
- https://activepymes.com/pub/file/80914943580.pdfIn PDF document text
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607a00f46a9d3---37147658537.pdfIn PDF document text
- https://hgindustrial.eu/userfiles/files/45869614110.pdfIn PDF document text
- http://nensi.si/upload/file/jobigoxesovezonit.pdfIn PDF document text
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/4emna4pf4807j4hm9n9qt8g8a5/fosofomuvi.pdfIn PDF document text
- http://xn--l3chcucnqd9c0eua7b1k.com/user_img/files/mubumonipivowapudajofufe.pdfIn PDF document text
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/5c50oica85jtotbbo78ivi99l7/sefefoxelitavabedo.pdfIn PDF document text
- https://www.eziblank.com/wp-content/plugins/super-forms/uploads/php/files/t0vq0kijnluc7s5pl3g8bakbj0/pipidedobadamazutofawuzam.pdfIn PDF document text
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/ao52plufq8r374pp68nbr8moj7/wijibat.pdfIn PDF document text
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161064a2e6405c---suwomamenuxikero.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b3521d405a1---dojebetigejovunuleber.pdfIn PDF document text
- https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/6f8436f1ab1289fdd4b8cf37210b0f9f/44950380346.pdfIn PDF document text
- https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091482844e5c---jumegaxijajuwezuwiruli.pdfIn PDF document text
- https://dm288.rs/slicice/file/pokos.pdfIn PDF document text
- http://101-games.ru/images/uploads/files/gafobejef.pdfIn PDF document text
- https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/bccd731ec77d9293c4d413414ac03926/xibiwo.pdfIn PDF document text
- https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/d52b10eafb5d4113dc7916fd9836a9e1/pojositujijolezelilituze.pdfIn PDF document text
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/87deveitiuod3rrg9an8l22o5v/83706446662.pdfIn PDF document text
- https://0a3exp.com/upfiles/editor/files/74474069562.pdfIn PDF document text
- https://chatsystem.site/js/ckfinder/userfiles/files/rafokujiwaduzedivokikeba.pdfIn PDF document text
- https://ht-cooling-j3t.com/contents//files/voxeziwosaxinewonapap.pdfIn PDF document text
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a2dcd1e469---52445076697.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://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_off0000f6e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6E8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010eff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EFF | 11368 bytes |
SHA-256: 189e40b2314f6026e7c90e8b15a2bc256ed63ff474eb922b29a55704d252f438 |
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font_02_sfnt_off0001290f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1290F | 17568 bytes |
SHA-256: 76a245bc9fb4a0b30abddc8c75b9a0a0916586fd84231aaabf2e5cab343a96b0 |
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