MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to distribute malicious content. Heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this malicious intent. ClamAV detection further confirms its malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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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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 https://chcial.ru/uplcv?utm_term=histologia+y+embriologia+bucal+orban+pdf PDF link annotation
- http://cungcapluonech.com/upload/files/vupubusiwazumuso.pdfIn PDF document text
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607596c456f28---77180425175.pdfIn PDF document text
- http://canphantich.net/Images_upload/files/zudap.pdfIn PDF document text
- https://patc.fr/imagesfile/47830178702.pdfIn PDF document text
- https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/mg9j0v2thj1apiqb5jrleuac1j/95287629770.pdfIn PDF document text
- https://alarouba.com/ckfinder/userfiles/files/19608430984.pdfIn PDF document text
- http://www.ciesol.com/ckfinder/userfiles/files/togovuvudiseniseg.pdfIn PDF document text
- http://worldnaturalfood.com/image/upload/File/sezowi.pdfIn PDF document text
- https://myveolife.com/wp-content/plugins/super-forms/uploads/php/files/81a56f10626d9ac96f4c076a231810ba/56343238390.pdfIn PDF document text
- http://goddesshair.net/upload/users/files/74513506709.pdfIn PDF document text
- https://pensiuneavlasin.ro/wp-content/plugins/super-forms/uploads/php/files/i318bpfhi19c12pehodg6jav2k/55813278433.pdfIn PDF document text
- http://magnumprint.ru/upload/files/boguzawomagez.pdfIn PDF document text
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612675ff55d0b---povibopupifod.pdfIn PDF document text
- https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/741b51c75746642cd5f007df0fd54e07/bidopanerigeb.pdfIn PDF document text
- http://umrllc.com/userfiles/files/raziz.pdfIn PDF document text
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/jto2ha1svo7eq3bc0t247cdvp1/68322494688.pdfIn PDF document text
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/161090d98ecaea---lulidizatavugurolo.pdfIn PDF document text
- http://bodegaadrover.com/userfiles/imagenes/30562721637.pdfIn PDF document text
- https://erdenetpost.mn/userfiles/files/xowijajujukamenipivi.pdfIn PDF document text
- http://dbexpertise.fr/catalogue_dynamique/file/mujikatilarelemedavida.pdfIn PDF document text
- http://maekalocal.com/Maeka/UserFiles/File/bixebagidakuridu.pdfIn PDF document text
- http://ewinghighclassof1963.com/clients/e/e4/e4cb61fc1babc639533983e887b7272d/File/tazubotone.pdfIn PDF document text
- http://uekekb.ru/!upload/files/roxubonovipijorujoxawaw.pdfIn PDF document text
- https://nothingbutsafetyglasses.com/userfiles/file/nulezuvozakod.pdfIn PDF document text
- http://hagelkonzept.de/userfiles/file/mixenavumuvatosejom.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_off0000c9ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9BA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e1d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1D1 | 11308 bytes |
SHA-256: c31da5c46379706766f31d2e0b889169b474e7cdfd66ea2884dd2ed43ee36ef4 |
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font_02_sfnt_off0000fbfa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBFA | 19888 bytes |
SHA-256: cd5d61efa89efb82b600b57b0c3bc86e5a8ce2f33e0d56d3d5b3b37c585220b5 |
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