MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for malicious documents. It also contains numerous external URIs, many of which point to compromised CMS upload directories, suggesting a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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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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 http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/ca9f637bfd5d0384e808420f71534aa0/jebavapokotipanotadojow.pdf In PDF document text
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/t71nqcr2fm8uq32oiiloojfl3p/xidagufovukesirozu.pdfIn PDF document text
- http://faxik.ru/ckfinder/userfiles/files/nezufevovimifiginoxi.pdfIn PDF document text
- http://gaishachuukobuhin.com/js/upload/files/86570317082.pdfIn PDF document text
- https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/8bfieraq7fc5g8ngfmgg081c0o/84886338636.pdfIn PDF document text
- http://modnyi-buket.ru/uploads/files/vojapovopugores.pdfIn PDF document text
- http://www.anclupnapoli.it/userfiles/file/zagolixugerepetasuko.pdfIn PDF document text
- http://etenindex.nl/images/uploads/desetiko.pdfIn PDF document text
- https://innovativallatgyogyszer.hu/fileok/file/48875730013.pdfIn PDF document text
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1f828c8b34---71148991038.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612a623a67a37---47988080973.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/16075956446768---losuvaku.pdfIn PDF document text
- http://uhy-th.com/image/upload/files/tarinukekulewirilox.pdfIn PDF document text
- http://carshopm.com/js/upload/files/tevoturutopopivewer.pdfIn PDF document text
- http://vhktn.at/images/content/files/bibojutosov.pdfIn PDF document text
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/uf015nk4to268pkhl329jldnl1/89094624691.pdfIn PDF document text
- https://stka.gr/ckfinder/userfiles/files/63020378176.pdfIn PDF document text
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/d9886e9n19hb31rnnih8pspce3/sokolo.pdfIn PDF document text
- http://mirandatutoringcentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ac91cdea1a2---76633470185.pdfIn PDF document text
- http://chukgoobok.com/files/fckeditor/file/favutetozererotuvomifum.pdfIn PDF document text
- http://assushop.com/userfiles/assushop.com/file/nugutog.pdfIn PDF document text
- https://bankubezpieczen.pl/userfiles/file/37320837286.pdfIn PDF document text
- http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070371e2ecb5---dabasupavafepijar.pdfIn PDF document text
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606efff3dec80---81604887024.pdfIn PDF document text
- http://progfin.pl/userfiles/file/gatesuduroma.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160968503ce524---galisijamewo.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=deep+love+appreciation+message+for+my+wifePDF 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_off0000e82b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE82B | 17200 bytes |
SHA-256: d156eb40c97c634fed6478cde546165edbfb58e9054360c705d2fe36c20be438 |
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font_01_sfnt_off000113e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113E9 | 11092 bytes |
SHA-256: 0c66b0d27ee6001d86eceac310e90c696edee25ac605f92fa22a8b53e9f643bd |
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font_02_sfnt_off00012dda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DDA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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