MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links pointing to compromised websites and disposable hosting, characteristic of a link farm used for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically identified as a phishing trojan. The document body is unreadable, but the heuristic firings and URLs confirm the attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
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://catamma.ru/uplcv?utm_term=go+keyboard+themes PDF link annotation
- https://prtl.pl/userfiles/file/82052163829.pdfIn PDF document text
- https://staging-info.sharkovinkom.com/sharkovinkom.com/ckfinder/userfiles/files/bolosuzemuzotapo.pdfIn PDF document text
- http://to-tuong.com/media/ckfinder/files/35466169467.pdfIn PDF document text
- https://lederstuhlshop.de/ckfinder/userfiles/files/xubekud.pdfIn PDF document text
- http://pinturasoltra.com/images/slider/files/vorimuv.pdfIn PDF document text
- http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16148b4b139c11---3829640279.pdfIn PDF document text
- https://kfk-dekoration.dk/images/uploadedimages/file/jobupojoxarapedetu.pdfIn PDF document text
- http://rracc.com/file_media/file_image/file/46462507310.pdfIn PDF document text
- http://tt-ural.su/admin/ckfinder/userfiles/files/vodulepefibufawo.pdfIn PDF document text
- http://xn--80aafjbaeihgganggf9ajkncugh2a.xn--p1ai/pict/file/nozamifom.pdfIn PDF document text
- http://everestlodgelukla.com/userfiles/file/xejozubalobuf.pdfIn PDF document text
- https://magnanerie-cazilhac.com/userfiles/file/nafitox.pdfIn PDF document text
- https://marikakozmetika.hu/editor_up/bagipixumiketivasot.pdfIn PDF document text
- http://zaun-produzent.de/userfiles/file/85777282878.pdfIn PDF document text
- http://ansonseatery.com/uploads/files/49414273145.pdfIn PDF document text
- http://cabinet-blin.fr/ressource/site-image/files/nuzoz.pdfIn PDF document text
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613617cf87eaf---ziledaju.pdfIn PDF document text
- https://2ruoteexpo.it/ckfinder/userfiles/files/soduzepemomaji.pdfIn PDF document text
- http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147d52f5a8f6---66807688728.pdfIn PDF document text
- http://xycrusher.com/d/files/97899861800.pdfIn PDF document text
- http://itkaufmann.com/images/fckimages/file/dimokijabozipunesut.pdfIn PDF document text
- http://sanitaerprofi.ch/fckeditor/editor/images/file/nivivuvazuzazuvunamudira.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_off0000ee0c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE0C | 10656 bytes |
SHA-256: 10ceff29aa758a88dd8d161f894dfe6a102665ed7b2b0b2de116198b33b2e088 |
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font_01_sfnt_off0001068d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1068D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011e9f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E9F | 17920 bytes |
SHA-256: 2acf7a06b3416e62973db7569988f612c84990127f89b35ae95d3bc41abd9e2b |
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