MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was identified as malicious by ClamAV and an ML classifier, indicating a high probability of malicious intent. It functions as a link farm, containing numerous URLs pointing to various websites, some of which are hosted on compromised WordPress installations. The presence of 'utm_term' in one of the URLs suggests a potential phishing or SEO manipulation tactic.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://cructi.ru/uplcv?utm_term=best+cheat+engine+for+android PDF link annotation
- http://cnex.cc/images/blog/file/83613231251.pdfIn PDF document text
- http://119pump.net/d/files/559696328.pdfIn PDF document text
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16137be1dd797e---38745303253.pdfIn PDF document text
- https://mirrorlink.com/public/files/files/gefazegaseluxu.pdfIn PDF document text
- https://frutalmente.pt/site/upload/file/dofolidiborurubuzomerum.pdfIn PDF document text
- https://www.mediawerf.nl/bundles/store24backoffice/ckfinder/userfiles/files/lakona.pdfIn PDF document text
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161364d371f19d---lodisanosivimopodevekadob.pdfIn PDF document text
- https://malinaionescu.ro/userfiles/file/zafixujegola.pdfIn PDF document text
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fe4b9efe42---11353241700.pdfIn PDF document text
- http://nextgenship.net/upload/file/20210906163090923639.pdfIn PDF document text
- http://mail.me.ntou.edu.tw/ckfinder/userfiles/files/20210907_223115.pdfIn PDF document text
- http://healthywithhart.com/res/file/58920566714.pdfIn PDF document text
- http://chemonova.com/FCKeditor/file/83463198316.pdfIn PDF document text
- https://euroialinsol.ro/userfiles/file/zasodewuvumi.pdfIn PDF document text
- http://aiaato.com/FileData/ckfinder/files/20210907_26A711FB80987A70.pdfIn PDF document text
- https://ateliersmq.com/pevron/www/img/file/33200874100.pdfIn PDF document text
- http://lagunaapartman.hu/images/user/file/24274778479.pdfIn PDF document text
- http://iscelenie.info/files/file/xadukafidamepidi.pdfIn PDF document text
- https://helices-evra.com/userfiles/file/josefaporikusasuvoviw.pdfIn PDF document text
- http://jolanyee.com/upload/files/202109041603225342.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_off0000d30c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD30C | 10764 bytes |
SHA-256: a9c6f80ad180ef9171e7e07639a53c2290148093c9691cdb8a709e18c4f6b48e |
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font_01_sfnt_off0000eb93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB93 | 18504 bytes |
SHA-256: 629ac0439125ad04654cc0eb39be23d57b3812a778b6ffbf0ca9e39705ec2e6f |
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font_02_sfnt_off00011a80.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A80 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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