MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm hosted on multiple compromised websites, aiming to trick users into downloading a malicious file. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The presence of embedded URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic further support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://karlholmbygg.se/UserFiles/files/filuwufopoke.pdf In PDF document text
- http://avon-bratislava.sk/files/files/79076494449.pdfIn PDF document text
- http://asja-doll.ru/userfiles/file/pazij.pdfIn PDF document text
- https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/99c7ab3ffe815d031d38440330129466/45220404902.pdfIn PDF document text
- http://hatowo.com/app/webroot/uploads/files/45458216591.pdfIn PDF document text
- https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/df9cbd1ef5af9d8c4c45a752e03c9e7b/20008684488.pdfIn PDF document text
- http://rocincorporated.com/domain.com/images/dynamic_pages/file/mitugabolizububijen.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/am5k6bm373p61ra997r35vd072/pibojodusurakowaxa.pdfIn PDF document text
- http://xinxinhouseware.com/uploadfile/files/bologotezuzuwarusoxajo.pdfIn PDF document text
- http://biosurfest.com/userfiles/files/tukatibodikazexe.pdfIn PDF document text
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/161402bc050a26---52713041850.pdfIn PDF document text
- http://umbabox.com/userfiles/file/47926525405.pdfIn PDF document text
- https://irantruck.ir/data/file/92627644552.pdfIn PDF document text
- http://de.ruben.pl/ckfinder/userfiles/files/47430829124.pdfIn PDF document text
- https://elpollopaulino.com/cenavarra_userfiles/files/nirepepalalaxe.pdfIn PDF document text
- http://unicorn-furnitures.com/d/files/70262784260.pdfIn PDF document text
- http://lpxs168.com/filespath/files/20210909004416.pdfIn PDF document text
- http://gvs-russia.ru/admin/ckfinder/userfiles/files/21786078845.pdfIn PDF document text
- http://3suntech.com/UploadFile/file/20210909205719649.pdfIn PDF document text
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161458ac9a8c80---73272112249.pdfIn PDF document text
- http://salamino.pl/userfiles/file/bokirogos.pdfIn PDF document text
- http://saveursetsavoirs.fr/image/file/58098837878.pdfIn PDF document text
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/4e642cb700ab403def5d7ec30c28d99b/zoxewamiro.pdfIn PDF document text
- http://datavincity.com/uploads/ckfinder/files/18908795054.pdfIn PDF document text
- https://abogadosaccidentealicante.centralcms.cloud/galeria/files/kofixajofof.pdfIn PDF document text
- https://e-ssuances.com/ckfinder/userfiles/files/19575417354.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=furious+2017+torrentPDF 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_off0000d36f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD36F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000eb81.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB81 | 18056 bytes |
SHA-256: f8f83128b2cb49cc557e8804d126959e9faf48fb7694868ad15ffd4d96fc80ba |
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font_02_sfnt_off00011a6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A6D | 10312 bytes |
SHA-256: 10db1b9e702ffbdc1c4478080f90397b6b6fb8171379618a6b7beb370d1be651 |
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