MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to potentially compromised websites and disposable hosting, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports the conclusion that this PDF is used to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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.assofmt.org/ckfinder/userfiles/files/61848045124.pdf In PDF document text
- https://kristinanamaste.eu/files/bawufadumorivamuxom.pdfIn PDF document text
- http://thriftstorewebsites.com/flash/thriftstorewebsites.com/file/32249279602.pdfIn PDF document text
- http://xn--80aafbkbafwdti1ahihccrg.xn--p1ai/pict/file/36369367898.pdfIn PDF document text
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b7f0b2b909---solafawomesipukiv.pdfIn PDF document text
- http://skncn.com/u/files/63535965222.pdfIn PDF document text
- http://inercial.es/uploads/files/zopoxufe.pdfIn PDF document text
- https://synodradomski.pl/userfiles/file/derupujimedunuzi.pdfIn PDF document text
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c611969e4dc---99872745320.pdfIn PDF document text
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/q23lp9j37cn5blno175t36f8m9/lakasimix.pdfIn PDF document text
- http://haai.org/upload/file/zububaki.pdfIn PDF document text
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/ede3af5c1ec09a4a110243d719c8b503/ruzulu.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/160722740094fd---gurewitodovepubifipedesot.pdfIn PDF document text
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/c6f4d13add948b5039be445ebf883ea9/sapojak.pdfIn PDF document text
- http://formel1vermietung.de/userfiles/file/78549225178.pdfIn PDF document text
- https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/62kh2poibvucriuat1tbegit3a/doxogimorelakaturoxoxepe.pdfIn PDF document text
- http://okmarin.ru/userfiles/file/sugijofu.pdfIn PDF document text
- http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/nojemufirolowazarodak.pdfIn PDF document text
- https://nstoplana.rs/ckfinder/userfiles/files/7159797172.pdfIn PDF document text
- https://wulf-sanitaer.de/wp-content/plugins/super-forms/uploads/php/files/7avnhlr2te1d9tptcl2f2pk9vg/79747740883.pdfIn PDF document text
- http://korean-school.hu/hangul/userfiles/file/vowoxekumakajot.pdfIn PDF document text
- http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9fa86d3fa2---66369041945.pdfIn PDF document text
- http://universalgroupautos.com/files/others/73986910290.pdfIn PDF document text
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/j9ra026eutll831akhll6h21a0/40920181217.pdfIn PDF document text
- http://upperdublin1970.com/clients/3/3b/3b2fb281f4756d03d37a29c41a8c1d95/File/66021709668.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=printable+practice+alphabet+worksheetsPDF 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_off0000bb83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB83 | 15272 bytes |
SHA-256: 10499eacadd3d11b0d2691fb9c8a78db82416e09c9288a19b6ff1d39226fec3b |
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font_01_sfnt_off0000e2aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2AA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fac1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAC1 | 10792 bytes |
SHA-256: 30318bc4741f8d3e85e6956bc445d4959ac1e738d59add6a8f303d6d672c1556 |
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