MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://siltri.com/fck_upload/file/numugifadikim.pdf In PDF document text
- http://americansemitruckparts.com/d/files/20980959076.pdfIn PDF document text
- http://zeminyerkaplama.com/upload/ckfinder/files/45477267601.pdfIn PDF document text
- https://francois-daulte.com/ckfinder/userfiles/files/21162535396.pdfIn PDF document text
- https://legend-chang.com/UserFiles/files/nupovefonaw.pdfIn PDF document text
- http://szyqjsj.com/UploadFile/file/20210912191959557.pdfIn PDF document text
- http://glassick.com/userfiles/file/tejifiviruwaxile.pdfIn PDF document text
- http://maychaybocaocap.com/app/webroot/uploads/files/59527739850.pdfIn PDF document text
- https://morganmethod.tuesdaytrader.com/ci/userfiles/files/26715209367.pdfIn PDF document text
- https://cuacuonbentre.com/upload/files/weguvowaseguzobevofes.pdfIn PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1614029e6e5494---11093759904.pdfIn PDF document text
- https://hk-delight.com/UploadFiles/file/42510437776.pdfIn PDF document text
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/sd9nnk31fhgbpqqton2k3hb6ul/forarabiropomawo.pdfIn PDF document text
- http://gkz-crimea.ru/userfiles/file/64517260684.pdfIn PDF document text
- http://shamayachts.com/upload/file/kezumosozebonufabos.pdfIn PDF document text
- https://shaplaconsulting.com/app/webroot/ckfinder/userfiles/files/32944898664.pdfIn PDF document text
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/7882682bed753b71c54322d6d24fc0f0/livipefasidigatokipuni.pdfIn PDF document text
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/5so5um2kilavtsjn9sf4cdvt41/12540037129.pdfIn PDF document text
- http://dlabiura.kbo.pl/ckfinder/userfiles/files/dumutunugogusab.pdfIn PDF document text
- https://www.piramideidiomas.com/ckfinder/userfiles/files/14808485804.pdfIn PDF document text
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/cbeb66bf89275359e6625af055640cb8/4261778624.pdfIn PDF document text
- https://almondzwealth.com/administrator/imagetemp/file/nisedekimowavutewiselofuk.pdfIn PDF document text
- http://sportservistocik.cz/UserFiles/File/zogebum.pdfIn PDF document text
- http://mmbc.cz/_data/user_files/file/gobikapovosazekitozalunaz.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=top+up+diamond+cocPDF 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_off0000bc4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC4E | 18312 bytes |
SHA-256: 6cb0bcd7a6414b34a7e4cb545da655b377219aff8a03c733a90f5a3228e527f6 |
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font_01_sfnt_off0000ec35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC35 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001044c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1044C | 10196 bytes |
SHA-256: f06ddc759ecadaf6c8f82c66b0c077ae693698a0a7020957a3e107a1448e5af0 |
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