MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple domains, many of which are hosted on compromised WordPress sites or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the presence of numerous external URIs suggest a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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 http://btsoft.vn/uploads/files/26123671277.pdf In PDF document text
- https://eletmodguru.hu/files/files/1005220644.pdfIn PDF document text
- https://rdw-wolf.de/backend/ckfinder/userfiles/files/kavomomu.pdfIn PDF document text
- http://iaestedresden.de/userfiles/file/kememurimewifuzuvi.pdfIn PDF document text
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/578714ccae8447abebbf4aeadcbb94eb/32598998410.pdfIn PDF document text
- http://htk2.altrodesign.eu/ckfinder/userfiles/files/belafukugabojudunajinow.pdfIn PDF document text
- http://schokobrunnen.com/idata/vabotemefamewafusin.pdfIn PDF document text
- http://remproekt-m.ru/admin/ckfinder/userfiles/files/jizufene.pdfIn PDF document text
- https://5of7edwardstreet.com/assets/media/files/37664243917.pdfIn PDF document text
- http://transcash.com/ci/userfiles/files/wawitavomox.pdfIn PDF document text
- https://wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/30780236401.pdfIn PDF document text
- https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/shju49mh61ab12uv29m1fihn3q/59581912629.pdfIn PDF document text
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/161413a0203d6b---72142517905.pdfIn PDF document text
- http://sibaco.ru/ckfinder/userfiles/files/98737959152.pdfIn PDF document text
- http://basyapiemlak.com/yukleme_klasoru/userfiles/file/pimawesixifu.pdfIn PDF document text
- http://clinicaveterinariabilancino.it/userfiles/files/dapizivemoxupe.pdfIn PDF document text
- https://traiteur-troyes-mariage-buffet-aube-10.blaisot-traiteur.fr/ckfinder/userfiles/files/tagogubizekebekapowezi.pdfIn PDF document text
- http://rhondachem.com/d/files/48161538184.pdfIn PDF document text
- http://nextlab-semi.com/files/fckeditor/file/75427041546.pdfIn PDF document text
- https://fishuntpesca.it/file/54172206088.pdfIn PDF document text
- https://novinfasteners.com/userfiles/file/29269827340.pdfIn PDF document text
- http://posekatzahradu.cz/files/file/pupejasaduxezutaba.pdfIn PDF document text
- http://studioiulianella.it/userfiles/files/givaniki.pdfIn PDF document text
- https://dongciao.com/uploads/files/202109132247041984.pdfIn PDF document text
- http://rld-carbon.ru/file/nafejatamizidimujabupubu.pdfIn PDF document text
- https://www.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/bivuduzuvi.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=photon+flash+player+%26+browser+for+pcPDF link annotation
- 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_off0000d8a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8A7 | 17684 bytes |
SHA-256: ed414bcad19515391d6a753b009f6731a29745d564bbbeff0d238ec7c87c9bcc |
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font_01_sfnt_off000105f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105F4 | 10476 bytes |
SHA-256: a02850f5a52c0dd5b82788e18fb880d9df18fbe9b964f14d85e1113965550e20 |
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font_02_sfnt_off00011dca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DCA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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