MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The document contains numerous external links, many pointing to compromised CMS upload storage and disposable hosting, suggesting a link farm designed to redirect users to malicious content. Crucially, the document includes an instruction to disable security software, a common tactic to bypass defenses before executing a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 7
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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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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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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=family+farm+seaside+hack+apk
- https://cafesca.mx/ckfinder/userfiles/files/zufuwa.pdf
- http://www.armstrongre.com/files/files/pedoxetanedabogesu.pdf
- http://www.niziointerior.pl/upload/file/26040979036.pdf
- https://luathoanghuy.com/uploads/files/sujasik.pdf
- http://webs123.com/userfiles/file/95395722984.pdf
- http://haciogullari.com/depo/sayfaresim/file/kikej.pdf
- https://muratay.nl/userfiles/file/lunusikifemozedavu.pdf
- http://www.vishalsahni.com/public/ckfinder/userfiles/files/51061502631.pdf
- https://argentinaproduct.com/ckfinder/userfiles/files/25088924397.pdf
- http://metrocars.london/survey/userfiles/files/83014124905.pdf
- http://panova-art.com/files/file/nizumokiv.pdf
- https://groupekineconcept.com/userfiles/file/47800074525.pdf
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16134327ae9013---59686416811.pdf
- http://mkconline.com/landmark/ckfinder/userfiles/files/rozusurevikopibesolevures.pdf
- http://kiuruvedenlukio.fi/tiedostot/file/xagolaxipurosot.pdf
- https://ncltandatbar.com/home/ncltandat/public_html/dowalumniusa/ckfinder/userfiles/files/tavaxipunu.pdf
- http://enovosti.info/ckfinder/userfiles/files/karunu.pdf
- http://tokyo-sanritsu.com/userfiles/file/18155741616.pdf
- http://patriabrno.cz/userfiles/files/52458533686.pdf
- https://letajicikoberce.cz/userfiles/file/65524278792.pdf
- http://styropapex.pl/userfiles/file/nopug.pdf
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/8e0g56v3s5e46c3sfo5ause5d3/notapafe.pdf
- https://norservis.info/files/files/senagidaviwibir.pdf
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613947c6560b8---gatixevenajarunupepiwi.pdf
- https://rt9.rspo.org/ckfinder/userfiles/files/44022423782.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b895.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB895 | 16792 bytes |
font_01_sfnt_off0000d0ac.bin7b22e4fe31edbf94b8209d78ef433d22b031f752205fb8c3c53e0f90a70a3440 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0AC | 10744 bytes |
font_02_sfnt_off0000e94c.bin44aa4416657dbfaa3664dd72b8540e8bcae41fc1e96978d2834196312528aa3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE94C | 18880 bytes |
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