MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded URLs that point to a variety of domains, many of which appear to be part of a link farm designed to redirect users. Several URLs are hosted on compromised CMS uploads or disposable domains, indicating a likely phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly support the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://inwebjor.ru/uplcv?utm_term=videoder+download+youtube+videos PDF link annotation
- http://nemeckystrakac.sk/editor_uploads/files/65805076341.pdfIn PDF document text
- http://soyaksiesta3.com/userfiles/file/24594299772.pdfIn PDF document text
- http://apex-architect.ru/images/file/45466442235.pdfIn PDF document text
- http://rpsbchamber.org/editorData/file/62301493785.pdfIn PDF document text
- https://petrovsky14.ru/docs/files/63879931740.pdfIn PDF document text
- http://lltsg.com/uploadfile/file///2021090120523280.pdfIn PDF document text
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614650691aa52---dazafubanojasipoxixum.pdfIn PDF document text
- https://g4m3s-4p1-12s1.com/contents/files/36757823755.pdfIn PDF document text
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130c348dd464---44638342963.pdfIn PDF document text
- http://jncs.kr/page_data/file/20210930183205.pdfIn PDF document text
- http://dungcubepgiangtrinh.com/webroot/img/files/53846658731.pdfIn PDF document text
- https://clinicamanila.com/ckfinder/userfiles/files/zinodefoxiwipexi.pdfIn PDF document text
- http://novelinternationalschool.com/ckfinder/userfiles/files/90250976411.pdfIn PDF document text
- http://dragoniresorts.com/userfiles/xewoxa.pdfIn PDF document text
- http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132279570435---97599794152.pdfIn PDF document text
- http://ingmarcofaedi.com/userfiles/files/24314969910.pdfIn PDF document text
- http://kientrucphatloc.com/upload/files/zaveg.pdfIn PDF document text
- https://lanna-flyingclub.com/ckfinder/userfiles/files/97531036539.pdfIn PDF document text
- http://emiem.pl/public/upload/ckfinder/userfiles/files/74744073840.pdfIn PDF document text
- http://altus.pl/userfiles/file/2732365861.pdfIn PDF document text
- https://aahs.givingplan.net/sites/default/files/editor/file/gorupebinoxokuwifowa.pdfIn PDF document text
- https://remini.hu/userfiles/file/xufuw.pdfIn PDF document text
- http://lyzph.com/userfiles/file/Fl202109131719075257.pdfIn PDF document text
- http://kwiatmetal.pl/userfiles/file/gerotofev.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_off0000bcaa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCAA | 19232 bytes |
SHA-256: 3c06808bbfd845c07017e1e614e8833eb473da98296f2f1e305e457fd8c120f5 |
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font_01_sfnt_off0000ee6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE6A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010681.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10681 | 10716 bytes |
SHA-256: 05dcbf64e7b9a06cbdaed6433778d09b0907a2c101dc4830bd8067941af1e1da |
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