MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by multiple heuristics and a machine learning classifier as malicious. It contains numerous external URIs and links to compromised WordPress upload storage, suggesting it functions as a link farm to distribute malicious content or phish users. The presence of these links and the overall structure indicate an attempt to redirect users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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://smidgel.ru/uplcv?utm_term=roald+dahl+lamb+to+the+slaughter+pdf PDF link annotation
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/600413bb3521bde96a06f0058199e76b/zajawapeli.pdfIn PDF document text
- https://terminal.hr/userfiles/file/28121828704.pdfIn PDF document text
- https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/6afbj0phagcl0jbgp03n1a44k7/19086795139.pdfIn PDF document text
- http://gld-lining.com/user_img/files/6227467303.pdfIn PDF document text
- http://imobiliariaimperio.com/files/files/87220988968.pdfIn PDF document text
- http://rioairporttransfer.com/ckfinder/userfiles/files/68229785658.pdfIn PDF document text
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c243a16ac5---kobebobi.pdfIn PDF document text
- https://eminentland.com/admin/userfiles/files/komefuwanusamixago.pdfIn PDF document text
- http://toyteepee.com/uploadfiles/file/210903150600750787dg271g.pdfIn PDF document text
- http://splhardware.com/UploadFile/file/2021090214043973499.pdfIn PDF document text
- https://drisraadentalcenter.com/userfiles/file/93461509069.pdfIn PDF document text
- http://csc0898.com/userfiles/file/20210907014909_vl8vac.pdfIn PDF document text
- http://www.tivafa.hu/upload/file/fidokijejakosiginuzo.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/161301f9c34cb5---56288073356.pdfIn PDF document text
- http://kristiankutschera.de/userfiles/file/gedusubikam.pdfIn PDF document text
- http://haithuanphat.com/uploads/files/xuwigotujagakimegopazi.pdfIn PDF document text
- http://uhy-th.com/image/upload/files/7041652499.pdfIn PDF document text
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/u988qln8j1qju9ba0nadi7kk5o/vituxupusogukipobos.pdfIn PDF document text
- http://csc-0411.com/userfiles/file/20210910170835_pfj8x9.pdfIn PDF document text
- https://lexcyberia.com/userfiles/files/52800755877.pdfIn PDF document text
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/161323c2b47441---19258641532.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_off0000f62d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF62D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010e44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E44 | 11036 bytes |
SHA-256: 3ea5e79f52c13bb94c5c82a8fb63d1dc523ee3127088fd6c6c3d843f4c44235a |
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font_02_sfnt_off00012787.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12787 | 17104 bytes |
SHA-256: 4e5c411168bb6225a6dae9e53a3c7606eeb8cd8bb6d3f6d46b18d6295ab85a1f |
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