MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to numerous unknown URLs, a common tactic for phishing or distributing further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of multiple PDF-specific heuristics related to URI and link farms further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://thegmsbihta.in/userfiles/file/46315068354.pdf In PDF document text
- https://vayamcs.com/content_files/files/36533972107.pdfIn PDF document text
- http://eko-baby.ru/userfiles/file/78996482404.pdfIn PDF document text
- https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/ec8796d4b98c1cb266c33491406de05a/93040264657.pdfIn PDF document text
- http://leguido.net/files/sedezedemofoxivuger.pdfIn PDF document text
- http://kirsanov-maslo.ru/uploads/rixoxul.pdfIn PDF document text
- http://rrarental.org/upload/file/83681537037.pdfIn PDF document text
- https://businesslife.com/content/file/9573136084.pdfIn PDF document text
- http://sanruou.com/app/webroot/uploads/files/fawefinulumalubedoxukal.pdfIn PDF document text
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/161413d72b264d---wikakokoxuw.pdfIn PDF document text
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/1fa9b904c50456131eb9345026278925/56676046914.pdfIn PDF document text
- http://igigeothermal.jp/userfiles/file/9564916809.pdfIn PDF document text
- http://coimbra.hu/uploads/ckfinder/userfiles/files/putuwawi.pdfIn PDF document text
- http://mariekevanvlierden.nl/survey/userfiles/files/bunawutifaga.pdfIn PDF document text
- http://teewer.mn/ckfinder/userfiles/files/53330500974.pdfIn PDF document text
- https://transport-vehicules.fr/userfiles/file/mugudibodigotexiziwisosi.pdfIn PDF document text
- https://appchecar.com/ckfinder/userfiles/files/fidudanoserigiletoxebuxef.pdfIn PDF document text
- https://csp-pub.com/stockages/files/95504418453.pdfIn PDF document text
- http://sydjpg.com/images/upload/file/20210912_095221_160.pdfIn PDF document text
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1613a176f4c5d9---78030264575.pdfIn PDF document text
- http://tdsns.ru/userfiles/file/wajoxuze.pdfIn PDF document text
- http://symbolfoods.com/files/file///2163450549.pdfIn PDF document text
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161391ce255ac1---lejefonobawakupivimagu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=convert+document+to+audioPDF 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_off0000d46a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD46A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ec7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC7C | 17280 bytes |
SHA-256: 5258837a25a3ff739e8c563693b1d2ecfbc4fe3e5a3498e26499f6462f4162ff |
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font_02_sfnt_off00011979.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11979 | 10512 bytes |
SHA-256: f186057115360c2015d41be8db21b0520b6e7bbd21c8e8939002a89a204cb00f |
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