MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised websites and disposable hosting, indicative of a link farm used for phishing or malware distribution. The ClamAV detection and ML classifier strongly suggest malicious intent. The heuristic 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' specifically highlights the use of compromised WordPress upload storage, further supporting the malicious nature of the links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://santa.sg/images/users/00000000/files/kugeligarofelamusema.pdf In PDF document text
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/859288ki34trml0ubkfme0im91/fozavegat.pdfIn PDF document text
- http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/161408b3577edb---vutalomawidewakowez.pdfIn PDF document text
- https://artesapanaderia.xyz/aym_image/files/84346203564.pdfIn PDF document text
- http://domadoma.cz/userfiles/file/zanuja.pdfIn PDF document text
- https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/bce326b984efdde995bbf71388d42b0a/dawilisinaliv.pdfIn PDF document text
- http://kpdb.org/userfiles/files/29973029151.pdfIn PDF document text
- https://davidfoleyinc.com/userfiles/file/59531318259.pdfIn PDF document text
- http://apicn.net/upload/files/18896122572.pdfIn PDF document text
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/161368cbd4ec95---ritomesokidavoteluw.pdfIn PDF document text
- http://mathcountsoutreach.org/userfiles/file/mobamaxudafamamom.pdfIn PDF document text
- http://erpsamik.com/ckfinder/userfiles/files/70981679236.pdfIn PDF document text
- https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/2480f33007fac7f0bb7d6e6964035c06/29859835808.pdfIn PDF document text
- http://theemasternetworker.com/ckfinder/userfiles/files/matitovunon.pdfIn PDF document text
- https://mystruggle.uk/indigo/ckfinder/userfiles/files/57873626773.pdfIn PDF document text
- http://embeddedhr.com/ckfinder/userfiles/files/45949698448.pdfIn PDF document text
- https://biocoop.legreniervert.fr/ckfinder/userfiles/files/48053958733.pdfIn PDF document text
- http://zsdbiopharm.com/upload/files/lumawefajamubiko.pdfIn PDF document text
- https://aydin-elektrik.com/resimler/files/wadilixelupimorevonumeniv.pdfIn PDF document text
- https://ccenter.ro/userfiles/files/gakutafarofuzepilut.pdfIn PDF document text
- http://xn--aknmedcal-wpbe.com/uploads/file/87128076526.pdfIn PDF document text
- https://edu-mate.kr/_UploadFile/Images/file/82728144864.pdfIn PDF document text
- http://fuhua.tumujike.com/assets/upload/files/202109291304012748.pdfIn PDF document text
- http://thuocamakong.net/userfiles/image/file/karefizamoxalexeroz.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=2nd+quarter+resultsPDF 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_off0000af72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF72 | 10296 bytes |
SHA-256: f3d0bbc22eabca5c566647fb611f4b925f84ae8b472eb2f7899c4e3f7c2c5b77 |
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font_01_sfnt_off0000c697.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC697 | 14856 bytes |
SHA-256: d51853402fa6c775ce10400e2ffba016afb34b6c0048814f38c02a3ccbe85bc1 |
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font_02_sfnt_off0000ebc2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBC2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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