MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a malicious PDF by ClamAV and an ML classifier. It contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of external URI heuristics and link farm indicators strongly supports a phishing or scamming attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://pistant.ru/uplcv?utm_term=disappointment+with+god+pdf+free+download PDF link annotation
- https://hotelreviewreserve.com/basefile/hotelreviewreservecom/files/87626451200.pdfIn PDF document text
- http://studioingegneriavaragnolo.com/userfiles/files/kogilekutasubowevago.pdfIn PDF document text
- https://appvid.eus/userfiles/files/82065738840.pdfIn PDF document text
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fedd8e1df2---23221261034.pdfIn PDF document text
- http://hferrynetworks.com/FileData/ckfinder/files/20210904_DC442BE7464DD5EB.pdfIn PDF document text
- http://elverum-revmatiker.no/images/file/nuwudegolukovivuf.pdfIn PDF document text
- http://shengnabei.com/uploadfile/file///2021090901460954.pdfIn PDF document text
- https://g55net.com/webpagebuilder/ckfinder/userfiles/files/vanoboveweluxudobimejipa.pdfIn PDF document text
- https://olterus.info/contents/files/3494871591.pdfIn PDF document text
- http://anapharmata.hu/ckfinder/core/connector/php/files/jedalitazuxevitovedago.pdfIn PDF document text
- http://escuelasfutbol8.com/docs/files/15306772755.pdfIn PDF document text
- http://mutitar.com/user_img/files/mifupu.pdfIn PDF document text
- http://96stone.ru/userfiles/file/31711069311.pdfIn PDF document text
- https://msvadba.ru/files/file/lobawuveluzopo.pdfIn PDF document text
- https://itandem.net/ckfinder/userfiles/files/kivivujewatadi.pdfIn PDF document text
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/de3u9585uajj1cb04qhhp4r68d/wamof.pdfIn PDF document text
- http://ct-tci.com/cttax/userfiles/files/90265400847.pdfIn PDF document text
- https://sklepbonus.pl/userfiles/file/wegebefixizejesexuvu.pdfIn PDF document text
- http://bassbasement.org/userfiles/file/52007652096.pdfIn PDF document text
- http://radio-salsa.com/php/rs/filesupload/file/72387103059.pdfIn PDF document text
- https://webmenuplus.com/images/file/25988325272.pdfIn PDF document text
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136819b06071---56349416547.pdfIn PDF document text
- http://www.ville-dammarie.com/ckfinder/userfiles/files/1471251642.pdfIn PDF document text
- https://www.la-providence-ehpad.fr/ckfinder/userfiles/files/43489298369.pdfIn PDF document text
- http://sten.kr/club/data/userfiles/file/20210909200017.pdfIn PDF document text
- https://birudongker.com/contents/files/87751949754.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_off0000cbac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBAC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e3c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3C3 | 11032 bytes |
SHA-256: 4d33a7a9099321e6d8a66141826cae89312996e1a838d5c9c2be503ffddeb7ac |
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font_02_sfnt_off0000fd0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD0D | 18036 bytes |
SHA-256: 61eeb097c69046919fbdff703dd671dac7ed6d0b0bae46b9e0256ee214b48f39 |
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