MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded JavaScript and numerous external links, many pointing to compromised websites or disposable hosting, suggesting a phishing or malware distribution attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a tactic to artificially inflate search engine rankings for malicious content. The embedded JavaScript likely facilitates the redirection to these malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://krisoc.ru/uplcv?utm_term=convert+compiled+html+help+file+.chm+to+pdf PDF link annotation
- https://bloomlight.pl/_bloom/file/zojew.pdfIn PDF document text
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16080a758e0583---12334492429.pdfIn PDF document text
- http://upperdublin1970.com/clients/3/3b/3b2fb281f4756d03d37a29c41a8c1d95/File/gefitamasamomoj.pdfIn PDF document text
- https://total-sport.pl/img/upload/files/xevir.pdfIn PDF document text
- https://tenutaedone.com/filesUploads/file/xuxapolanekowosu.pdfIn PDF document text
- http://princeworldwide.com/multimedia/userfiles/file/81640243962.pdfIn PDF document text
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091b092a1efa---47018821159.pdfIn PDF document text
- http://sun-tes.ru/files/file/lolomojabib.pdfIn PDF document text
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a102ba9fe36---31458952908.pdfIn PDF document text
- http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/u9q923r0ena9mbdm2gcer9ksk7/kumijonarigalurafeduz.pdfIn PDF document text
- http://www.mananthavadynorbertines.org/www/js/ckfinder/userfiles/files/fezis.pdfIn PDF document text
- https://www.hotwaterfactory.com.au/wp-content/plugins/super-forms/uploads/php/files/1018369921ac7c4da1ddec69aec429da/4138317101.pdfIn PDF document text
- http://niestachow.pl/data/aktualnosci_imgs/file/15284723847.pdfIn PDF document text
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe2c741e9b---kewipef.pdfIn PDF document text
- https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/bf87a42ec70586946efbb043e7eb5c66/midobejebotupo.pdfIn PDF document text
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/377n43avktoumbklb12ifirj7b/kozitivuwatak.pdfIn PDF document text
- http://osmed.cz/app/webroot/files/files/nemepeful.pdfIn PDF document text
- https://afmiletisim.com/resimler/files/21657267709.pdfIn PDF document text
- http://tryinvest.eu/userfiles/files/51079130206.pdfIn PDF document text
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c6edd25e644---67543791964.pdfIn PDF document text
- https://mziagroup.com/wp-content/plugins/super-forms/uploads/php/files/dmboms2g355uss1gmtofnge08g/87152085200.pdfIn PDF document text
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160ff942a24ebf---biridatelirovewazexusa.pdfIn PDF document text
- http://bettynblue.com/upload/fck_img/20210526/file/35165186351.pdfIn PDF document text
- http://fundacjahfg.pl/upload/file/sopub.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_off0000ec3b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC3B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010452.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10452 | 10720 bytes |
SHA-256: e26dd69c8688cdb1343919e6abe9ba56673be0b771a8dbd80dc214439ba1cfdf |
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font_02_sfnt_off00011cba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CBA | 17804 bytes |
SHA-256: ce9efbbcd68277ba1cb9d14a255a610efdff3d29dbca36540d4287c48f9ec412 |
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