MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are part of a link farm hosted on compromised or disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The embedded JavaScript is a common technique for initiating malicious actions within PDF documents.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
Heuristics 8
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://pistant.ru/uplcv?utm_term=how+to+transfer+file+to+pc+from+android PDF link annotation
- http://domoticasociale.it/immaginiNewsletter/file/33853994108.pdfIn PDF document text
- http://rjt1.org/upload/files/32153409745.pdfIn PDF document text
- http://virus-safe-zone.com/ckupload/files/bogufedomirilezip.pdfIn PDF document text
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/41a3bba0ae722d1c1c72d32011d47017/bewugovutotigefudez.pdfIn PDF document text
- https://eletmodguru.hu/files/files/faponive.pdfIn PDF document text
- https://nisahanpin.com/calisma2/files/uploads/puborowumaxinuko.pdfIn PDF document text
- http://jongauger.com/userfiles/file/pupuluvovosekixiwov.pdfIn PDF document text
- http://rebornfair.com/FileData/ckfinder/files/20210913_C24FD5EEE0BAC98C.pdfIn PDF document text
- http://ngocvietbungalow.com/upload/files/sebuvizavasexuvofajuf.pdfIn PDF document text
- http://china-engine.net/ckfinder/userfiles/files/89271779561.pdfIn PDF document text
- http://emke.hu/uploads/ckfinder/userfiles/files/86025339718.pdfIn PDF document text
- http://reflita.lt/uploads/files/faseguxatajolelukenew.pdfIn PDF document text
- http://kirakuramenandsushi.com/uploads/files/57041919741.pdfIn PDF document text
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/161471c149dd44---zidemaxudigubofokusipur.pdfIn PDF document text
- https://khotelmarket.com/FileData/ckfinder/files/20210904_F75832C1FD37CFE1.pdfIn PDF document text
- http://gk-eventus.ru/admin/ckfinder/userfiles/files/58331753110.pdfIn PDF document text
- http://buzmakov-ua.ru/admin/ckfinder/userfiles/files/nogosaripa.pdfIn PDF document text
- http://detskaoptika.cz/ckfinder/userfiles/files/3499959980.pdfIn PDF document text
- https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/lj35ioqt1aps9k56446v34po5f/32853498835.pdfIn PDF document text
- http://phannhan.vn/files/usersfiles/files/vugomasuniniwumobanixinof.pdfIn PDF document text
- https://krygina40.ru/UserFiles/File/tewase.pdfIn PDF document text
- https://skl.deindrukdemo.nl/upload/files/43864600133.pdfIn PDF document text
- https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/sqevek39ovt6bn5i5cr1lqqv4s/fomigazuxo.pdfIn PDF document text
- https://www.displaysdirectaustralia.com.au/application/third_party/ckfinder/userfiles/files/15936701566.pdfIn PDF document text
- http://jeansresource.com/js/ckfinder/userfiles/files/87566925552.pdfIn PDF document text
- https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/2674aaf5f6679e7089c74acc4c0810c0/72982086415.pdfIn PDF document text
- https://pmapmc.com/userfiles/image/files/28724004776.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_off0000d3e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3E6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ebfd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBFD | 10860 bytes |
SHA-256: 9d4193a35511c8dcd21d35c42fbc4ceff5d149b48e9c644f1ad58cf8ba81bae1 |
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font_02_sfnt_off0001050d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1050D | 17320 bytes |
SHA-256: adf94a2ab9d0670a8afb2a81f62e29d9cbb8e350d6addea2924133682c6788a4 |
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