MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The ML classifier and ClamAV detection strongly indicate this PDF is malicious. It contains a link farm pointing to multiple compromised WordPress sites and other disposable hosting, likely intended to phish users or deliver further malware. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic confirms the presence of numerous links on potentially untrustworthy domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://medvor.ru/uplcv?utm_term=how+do+i+manually+update+my+android+security+patch PDF link annotation
- http://gatewayhotelbangkok.com/upfile_hotel/files/mijuxubesila.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/tk3d9cc0lg0ah1kkqee1cc39h2/fuvaraw.pdfIn PDF document text
- https://uat-tunisia.com/userfiles/file/bemejuk.pdfIn PDF document text
- https://acryl-bg.com/userfiles/file/zodovavazijakujoboni.pdfIn PDF document text
- http://iwilldoit.ru/uploads/files/files/66161791553.pdfIn PDF document text
- http://yuli-china.ru/d/files/refevikop.pdfIn PDF document text
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160877400093fa---xewivifovup.pdfIn PDF document text
- https://ariconium.cz/webpagebuilder/ckfinder/userfiles/files/18982359042.pdfIn PDF document text
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611fab29d4e83---46584997708.pdfIn PDF document text
- http://netinflux.net/userfiles/file/gobodunavazatov.pdfIn PDF document text
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/160c8cdda6cf54---tovimi.pdfIn PDF document text
- http://ippinnudon.com/uploads/files/56311418115.pdfIn PDF document text
- https://thewaves.net/wp-content/plugins/super-forms/uploads/php/files/hcthkoi8tg983kqa65kubseqe1/gozizufomodufuputarukun.pdfIn PDF document text
- http://polskienarty.pl/data/aktualnosci_imgs/file/ripozavuzavadetusiwada.pdfIn PDF document text
- https://rebel-guitars.com/wp-content/plugins/super-forms/uploads/php/files/852b35cc6040880c110debaee4c486d7/23231092264.pdfIn PDF document text
- http://villapellegrino.it/userfiles/files/38807929433.pdfIn PDF document text
- http://entone.es/wp-content/plugins/super-forms/uploads/php/files/529d32a6304b30f1f27e2b2414e51291/dapelawitifi.pdfIn PDF document text
- https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/jjgscijh6e1gk3f7pt7819ds4k/36218907286.pdfIn PDF document text
- http://beerskiboot.com/img/upload/file/39442931502.pdfIn PDF document text
- http://intertexmedical.com/userfiles/files/miraretidivekidin.pdfIn PDF document text
- http://fusheng-vietnam.vn/admin/webroot/upload/image/files/wilulemup.pdfIn PDF document text
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160945737063c7---71921785800.pdfIn PDF document text
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160f9625ae13a4---54400529422.pdfIn PDF document text
- http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3a558be1f7---zanijuwobisadofuxunexan.pdfIn PDF document text
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/9f36dac8e3e5e42323d7003e92efe989/fewuxodenasovojilenuzipez.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_off0000dcee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCEE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f505.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF505 | 11072 bytes |
SHA-256: 68593f8da8faf5dada56a8c06ff41661e7b0d07efe138dc10e55e5c56a3eb6f2 |
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font_02_sfnt_off00010ea3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EA3 | 18808 bytes |
SHA-256: 47f713378bb47d82b4d7d9c11b8fe73f0a471671b2fc9deae181ee5dca2af0c8 |
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