MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high probability of malicious intent. It contains numerous links, many pointing to compromised WordPress upload directories, suggesting it functions as a link farm to distribute further malicious content or phish users. The presence of these links and the overall structure strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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 http://dental-forum.ru/userfiles/file/95959914230.pdf In PDF document text
- http://www.melloecastro.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071896885234---pekibilawiri.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16081487b4aa28---taworodapi.pdfIn PDF document text
- http://logiccpacma.com/ckfinder/userfiles/files/6851145193.pdfIn PDF document text
- http://xn--b1agjlwjc3g.xn--p1ai/ckfinder/userfiles/files/57459947501.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a2afa40cfca---wipujo.pdfIn PDF document text
- https://hr-serdahel.hu/images/file/zanabawiribunilebi.pdfIn PDF document text
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608445f8711a5---kavobu.pdfIn PDF document text
- http://openendrep.com/userfiles/files/befapanurukone.pdfIn PDF document text
- http://icltindia.in/userfiles/file/bakodorawajusodovuxipowof.pdfIn PDF document text
- https://theelementrama9.com/userfiles/files/20638273742.pdfIn PDF document text
- https://vongtaytramhuong.vn/upload/files/renaxagulezojutaperi.pdfIn PDF document text
- http://rivieahk.com/clients/5/51/51325344bd1517f257d6959d5350918e/File/33727473457.pdfIn PDF document text
- https://uniqrelation.com/userfiles/file/70629359349.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/8a45bcb078b76f29e00b1c41fe01547b/52749891215.pdfIn PDF document text
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aab01395c2---60666330072.pdfIn PDF document text
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073c09eb0083---tijunereb.pdfIn PDF document text
- https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/414c8613b6a648c32db2a9aa720ca053/jeralonuxiwanepegetof.pdfIn PDF document text
- http://jogamiskolc.hu/ckfinder/userfiles/files/33205313903.pdfIn PDF document text
- http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608c4b9695326---21512733652.pdfIn PDF document text
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b198a9813b---ginupu.pdfIn PDF document text
- http://hani-bee.com/userfiles/files/sekubofigipumevad.pdfIn PDF document text
- http://studiogaleazzo.eu/userfiles/files/44854422809.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+add+music+to+imovie+drm+protectedPDF link annotation
- https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/50e5d633708b29aa6336ab58b43b28e7/8194769297.pdfIn PDF document text
- 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_off0000e37a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE37A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fb8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB8C | 16900 bytes |
SHA-256: 89452621de5b86c6d9bdc91289f71ddd6071034e8b7b4703b09a5b7f5beb44cf |
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font_02_sfnt_off000127b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127B1 | 10768 bytes |
SHA-256: ddd2468e4b5d6d05490c64af1f06ffe36968bdfd1ed7482bbfd7ef5eeaa75666 |
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