MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a large number of external links, many hosted on compromised CMS uploads or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of UTM parameters in some URLs indicates an attempt to track user engagement with the phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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=red+hotstar+app+download+apk PDF link annotation
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141fd507716f---49032930566.pdfIn PDF document text
- http://sjzhtchem.com/upload/files/lavunonarikubano.pdfIn PDF document text
- http://smolninskayahotel.com/userfiles/file/32224950276.pdfIn PDF document text
- https://pmrmhss.com/userfiles/file/28406844759.pdfIn PDF document text
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614090954fd0e---25521880261.pdfIn PDF document text
- https://maggies-handmade.com/UserFiles/files/73132223077.pdfIn PDF document text
- https://laplacedesstores.com/upload/file/rimanarelami.pdfIn PDF document text
- https://hotelcorona.ro/files/fokedipomutekumewaxuwene.pdfIn PDF document text
- https://lrsdev.com/userfiles/file/vokaradarunanigozakabidu.pdfIn PDF document text
- http://merwepizza.com/upload/file/30366618210.pdfIn PDF document text
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613668a096c37---5726466274.pdfIn PDF document text
- http://www.golfusa.be/userfiles/files/44809450912.pdfIn PDF document text
- http://kompassztuki.pl/Image/files/36377372808.pdfIn PDF document text
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/kf2ktc8ngilvtpqijlja20qkle/75965795558.pdfIn PDF document text
- http://yuanjiangchem.com/upload/files/95121601746.pdfIn PDF document text
- http://vino-charlie.cz/userfiles/file/bozufugule.pdfIn PDF document text
- http://grafichesirio.com/userfiles/files/52597709561.pdfIn PDF document text
- http://alatasfilms.gr/ILC/img/file/sofumotexum.pdfIn PDF document text
- http://shijijiaming.net/filespath/files/20210908122534.pdfIn PDF document text
- https://verandapattaya.com/userfiles/files/89286962005.pdfIn PDF document text
- https://gadd-asso.org/userfiles/file/nowagazagewi.pdfIn PDF document text
- https://www.mnogotrop.com/ckfinder/userfiles/files/44066463730.pdfIn PDF document text
- https://anakaygame.net/calisma2/files/uploads/15416143233.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_off0000d91a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD91A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f12c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF12C | 17240 bytes |
SHA-256: 7b045faf40c8c7fb20843ab43084eed4345392ab34bf86e8cbc0840da242a4d4 |
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font_02_sfnt_off00011d8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D8F | 10620 bytes |
SHA-256: db7d8622ea018ace37132a4cc109a579123c0d0949cf24523e22a5f2a40c3277 |
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