MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs that form a link farm, pointing to other PDF files hosted on various domains. Several heuristics indicate this is a link farm on disposable or compromised hosting, and the ML classifier flagged it as malicious. The ClamAV detection further supports its malicious nature, likely as a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
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://www.smartfutureexpo.com/ckfinder/userfiles/files/saxegibuj.pdf In PDF document text
- http://ehsclassof64.com/clients/b/bf/bfa5c4411462ceee4a19e543862d902c/File/37800799277.pdfIn PDF document text
- http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/rm3f6qi87qj0hik4mg8t9lent4/volokozu.pdfIn PDF document text
- https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/a36f52dee58149db16228ac3fc07e0d8/jonuboka.pdfIn PDF document text
- https://dolmalatrek.com/userfiles/file/nigiwavadavu.pdfIn PDF document text
- http://sheilahancock.net/blogfck/file/xemuxivaposimesago.pdfIn PDF document text
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160989ead2a2e6---nofavifapokifirore.pdfIn PDF document text
- http://gavinlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/62355191885.pdfIn PDF document text
- http://creaorganization.com/depo/sayfaresim/file/puzitujebakiketa.pdfIn PDF document text
- http://fujavietnam.com/images/Download/mubevaja.pdfIn PDF document text
- https://yumasri.com/assets/ckfinder/userfiles/files/sigejo.pdfIn PDF document text
- http://tms-operation.com/upload/files/jofizenojazizojiti.pdfIn PDF document text
- http://atrsara.ir/resource/files/3261047130.pdfIn PDF document text
- https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/nhnbrpohse7qs02ntg7tr64j45/zoborunuvusebovugasunuke.pdfIn PDF document text
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/t123v5qrnarmkn4odpkh2ub754/fujeten.pdfIn PDF document text
- http://carroll1975.com/clients/4/4e/4e2b018d07aaa5a30c3e4fca1c7a8df7/File/sivudusax.pdfIn PDF document text
- http://automsystem.com/UploadFile/file/20210611180622687.pdfIn PDF document text
- http://ohappy.org/userData/board/file/xodatolutidusatoxobe.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ecab059b991---47866729814.pdfIn PDF document text
- http://geredekombiservisi.com/userfiles/file/paruwo.pdfIn PDF document text
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608e717a25ee6---guronijazavenoripevu.pdfIn PDF document text
- http://budka39.ru/files/50973297675.pdfIn PDF document text
- http://clickvay.com/upload/files/vugulofaweferobatumik.pdfIn PDF document text
- https://bocion.com/ckfinder/userfiles/files/75620655302.pdfIn PDF document text
- https://dagvandearchitectuur.be/_files/file/16071377638.pdfIn PDF document text
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608c2d85b5a05---15074044118.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=reckless+love+sheet+music+pdfPDF 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_off0000c579.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC579 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dd8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD8B | 16260 bytes |
SHA-256: 7176ad1c77ba20a553f277e2027a8a22176fd555c8a7ec8171cc2dd0fb64a968 |
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font_02_sfnt_off0001076a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1076A | 10824 bytes |
SHA-256: 44ba45b049b8df5f2e213421485715b1284962f0f7a3c322e9fd6c9d7287dcf8 |
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