MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous URLs pointing to various domains, many of which appear to be compromised WordPress sites or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest the document's purpose is to act as a link farm, likely for malicious SEO or to host phishing content. The ML classifier and ClamAV detection further confirm its malicious nature, indicating it's a phishing or trojanized PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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://inwebjor.ru/uplcv?utm_term=how+to+see+someone%27s+instagram+pictures+on+private PDF link annotation
- http://kimdaiphatsteel.com/Images_upload/files/27393294033.pdfIn PDF document text
- http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1613c501784392---9723652145.pdfIn PDF document text
- http://juncheng.tw/upload/files/luduzurofifomelavijoma.pdfIn PDF document text
- http://rooptex.com/uploads/dojurulirikud.pdfIn PDF document text
- http://www.tecnobor.com/ckfinder/userfiles/files/sitajijenogosodusefo.pdfIn PDF document text
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613052510a09f---96843302236.pdfIn PDF document text
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/161396c4b91f95---vimir.pdfIn PDF document text
- http://hotel-gerard-dalsace.com/upload/document/93826386974.pdfIn PDF document text
- https://tahubunting1.com/contents/files/kigelo.pdfIn PDF document text
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb11253270---jetewema.pdfIn PDF document text
- http://rowadhr.com/app/webroot/upload/files/46474209093.pdfIn PDF document text
- https://klcmekatronik.com/ckfinder/userfiles/files/lenokojamevadafe.pdfIn PDF document text
- https://parquesanalbertohurtado.cl/ckfinder/userfiles/files/78472245763.pdfIn PDF document text
- https://birudongker.com/contents/files/48762029998.pdfIn PDF document text
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614111a16739e---73113641294.pdfIn PDF document text
- https://henseltech.cz/userfiles/file/82838202334.pdfIn PDF document text
- http://mskabel.cz/UserFiles/File/4739420671.pdfIn PDF document text
- https://satbietthu.com/luutru/files/78610092069.pdfIn PDF document text
- http://lecieldesandes.fr/ckfinder/userfiles/files/47408596674.pdfIn PDF document text
- http://superfishinglewood.com/uploads/files/simakaxowedam.pdfIn PDF document text
- https://rossbeede.com/userfiles/file/reladagomod.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_off0000fe02.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE02 | 18624 bytes |
SHA-256: f6b94e15959d5eb0813ce98373e23be390346e4c3e6515b206fa15e02cb38482 |
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font_01_sfnt_off00012dbb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DBB | 10948 bytes |
SHA-256: 6d288e05238a8f7885368d76ab0f890f4bc1639c120286a8568377a5dca25157 |
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font_02_sfnt_off00014733.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14733 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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