MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was identified as malicious by ClamAV and an ML classifier, with heuristics indicating it's a link farm on compromised CMS uploads. The embedded URLs, such as 'https://philabc.ru/uplcv?utm_term=backward+diodes+pdf' and 'http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/59510596d447bb785ef298ad23732658/19167158234.pdf', are likely used to redirect users to phishing pages or download further malicious content. The document body appears to be malformed or obfuscated, preventing a detailed analysis of its direct content.
Machine Learning
- Nyx PDF Classifier malicious score 0.8497
Heuristics 5
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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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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://philabc.ru/uplcv?utm_term=backward+diodes+pdf PDF link annotation
- https://hondamienbac.vn/userfiles/file/97607355221.pdfIn PDF document text
- https://psychologgia.pl/Upload/file/55636185882.pdfIn PDF document text
- https://bataretak.com/img/files/file/zamiken.pdfIn PDF document text
- http://ckrestaurantgroup.com/ckfinder/userfiles/files/4949961457.pdfIn PDF document text
- http://csc0731.com/userfiles/file/20210630234354_oyiex3.pdfIn PDF document text
- https://thingstodobahrain.net/ckfinder/userfiles/files/98854665622.pdfIn PDF document text
- http://dbjhockeytournament.com/clients/f/f9/f9ff496842c877cbb4522510b668f2a2/File/lujegigozaju.pdfIn PDF document text
- http://izdo.org/img/userfiles/files/lakif.pdfIn PDF document text
- http://yoron.net/up/files/67903819333.pdfIn PDF document text
- https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/09ea16539c4b31e83abf7c1fd5325364/dixajat.pdfIn PDF document text
- http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/59510596d447bb785ef298ad23732658/19167158234.pdfIn PDF document text
- https://thic.muki001.com/plugin/ce1/ckfinder/userfiles/files/kosisivanup.pdfIn PDF document text
- https://aduanaldelvalle.com/userfiles/file/mekenonodu.pdfIn PDF document text
- http://chinazzjx.com/d/files/19317352190.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f600c3aa0e---jodotok.pdfIn PDF document text
- http://tjsyjdq.com/v15/Upload/file/2021922253536824.pdfIn PDF document text
- http://ji-tien.com/userfiles/file/46195177853.pdfIn PDF document text
- https://roofmed.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607807b7e082e---98991220408.pdfIn PDF document text
- http://outspokenholland.com/userfiles/fckFile/20210608081716.pdfIn PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/7b02aockdviv3dcd9mp4ojnga2/18033789145.pdfIn PDF document text
- http://chinoboxingclub.com/clients/36032/File/34279590342.pdfIn PDF document text
- http://poetische-malerei.de/web/editor/files/1531283877.pdfIn PDF document text
- http://proreferee.ru/uploads/ckfinder/files/gisuzaxusopi.pdfIn PDF document text
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/31967de8fd496f337a448d5d09714d72/2654148384.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b121.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB121 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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