MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links to other PDF files hosted on various domains, indicating a link farm designed to obscure the ultimate destination. Heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this is a malicious distribution or phishing lure. The ML classifier and ClamAV detection further confirm its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://unaizahic.com/Files/files/53358993950.pdf In PDF document text
- http://vidol.eu/userfiles/file/91444926383.pdfIn PDF document text
- http://pk.mo/userfiles/file/76783759782.pdfIn PDF document text
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613d08dbc9c7d---katenokokonudemapazut.pdfIn PDF document text
- https://alpinismbihor.ro/app/webroot/files/userfiles/files/605231405.pdfIn PDF document text
- http://muszempilla.com/files/file/giloxalumaponuvi.pdfIn PDF document text
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/48d1c747d4248abe8a069edaa237604f/98602436772.pdfIn PDF document text
- https://priscar.com/documents/files/78183543096.pdfIn PDF document text
- http://ebrinteractive.com/userfiles/file/37695487833.pdfIn PDF document text
- http://ytbozhuo.com/upload/file/031303365542.pdfIn PDF document text
- http://advocaatindex.nl/images/uploads/64050476106.pdfIn PDF document text
- http://sten.kr/club/data/userfiles/file/20210901151339.pdfIn PDF document text
- https://florerialafloresta.com/ckfinder/userfiles/files/81899031732.pdfIn PDF document text
- http://xn--38-mlcqjbufcz6h.xn--p1ai/userfiles/file/kudibezenekote.pdfIn PDF document text
- http://laboratorioshamalab.com/userfiles/file/xijorilemakuramo.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/16143675a9de3e---41526598436.pdfIn PDF document text
- https://beautydiction.com/ckfinder/userfiles/files/dasemaxisijagu.pdfIn PDF document text
- http://sonnenheizung.ch/fckeditor/editor/images/file/10292531015.pdfIn PDF document text
- https://coebmsf.com/userfiles/file/61989618975.pdfIn PDF document text
- http://honderhotel.com/UploadFiles/FCKeditor/20210915172929.pdfIn PDF document text
- https://baoholaodong24.baohohoanglong.com/userfiles/file/susuliwurezujixok.pdfIn PDF document text
- http://mylodge-naoshima.com/images/blog/file/retazegobowopupufizepivat.pdfIn PDF document text
- http://lungshingcentre.com/userfiles/78435130135.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=adults+tv+app+for+androidPDF 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_off0000bfc8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFC8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d7da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7DA | 16308 bytes |
SHA-256: 4d9d74efa3730629701c8dc09aafbbf22085e3f827edd17e524dead698c4d31f |
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font_02_sfnt_off000101ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101CE | 10508 bytes |
SHA-256: 4b719e1b64ae76d0b2084fc1b67bf92111199634e7f58cec50fd660e4948adb7 |
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