MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing or trojan. Heuristics indicate it functions as a link farm, with numerous external URIs pointing to compromised CMS uploads and disposable hosting. The embedded URLs suggest a phishing or malware distribution scheme, likely intended to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9958
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://synerhu.ru/uplcv?utm_term=club+penguin+rewritten+secrets PDF link annotation
- http://capri.lt/userfiles/files/jixedarawanina.pdfIn PDF document text
- http://www.ondebiz.com/userfiles/file/95856857548.pdfIn PDF document text
- http://ossokahve.com/upload/file/nadifinolujakazeduvadazej.pdfIn PDF document text
- http://skisun.it/userfiles/files/vusodujuxegorut.pdfIn PDF document text
- http://salonmysliwskirys.pl/userfiles/file/gilanegovejiwufegikipek.pdfIn PDF document text
- http://hitecds.com/userfiles/file/57999989346.pdfIn PDF document text
- http://gintaras.cz/userfiles/file/27066090863.pdfIn PDF document text
- http://hsi-international.com/ckfinder/userfiles/files/73476659318.pdfIn PDF document text
- http://parbatsamajjapan.com/img/files/files/gukotabujupakuxuzoj.pdfIn PDF document text
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16139d5df75206---96383285901.pdfIn PDF document text
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/161442dbc47f23---56442815516.pdfIn PDF document text
- https://zoomkish.com/basefile/zoomkishcom/files/85911615883.pdfIn PDF document text
- https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/635f3588e0b8ae20b1ba2a324a6a3d29/76506404628.pdfIn PDF document text
- https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/01a952d0db14db9e9df387ba58c51a1b/sadojodejukefopekimofeje.pdfIn PDF document text
- https://granitabrasive.com/editor_up/debatibokamamexuri.pdfIn PDF document text
- https://www.icicle-mountaineering.ltd.uk/ckfinder/userfiles/files/28640891779.pdfIn PDF document text
- https://viboot.traigiongthuha.com/ckfinder/userfiles/files/54404151762.pdfIn PDF document text
- http://culbertsonlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/71810729922.pdfIn PDF document text
- https://www.kuwaitpolyurethane.com/ckfinder/userfiles/files/3122891209.pdfIn PDF document text
- https://ecohort.com/userfiles/files/94819534376.pdfIn PDF document text
- http://angarakshaksecurity.com/userfiles/file/piwivubexi.pdfIn PDF document text
- http://ciskmv.com/css/file/37004570999.pdfIn PDF document text
- http://lse.hu/userfiles/file/48395465416.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_off0000cc88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC88 | 18144 bytes |
SHA-256: cd60a9ba3466803f9c6c8f9fffcf5fac3f534aa2b21fdc97a91d35e2d935713d |
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font_01_sfnt_off0000fbe9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBE9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011400.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11400 | 10624 bytes |
SHA-256: f4986f47cf27cbc51a4f9b4ce09b2a226cc5071f8b366b63d4e19af0ceccac16 |
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