MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to external sites, many hosted on compromised WordPress installations, suggesting it functions as a lure to download further malicious content. The document body, though heavily obfuscated, appears to be a fabricated application letter, a common pretext for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://coretry.ru/uplcv?utm_term=application+letter+for+civil+engineer+fresh+graduate PDF link annotation
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160780a9ae1652---wafuwuzezufunemeguvuk.pdfIn PDF document text
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa370b99e5---xerifulerokamelikur.pdfIn PDF document text
- https://ludifrance.fr/userfiles/file/disagogepibusadu.pdfIn PDF document text
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc73f1ae894---88716242965.pdfIn PDF document text
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/4vos3uqf93s419rle40i5q19aa/24090931578.pdfIn PDF document text
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160947f16e9dc0---fadapeti.pdfIn PDF document text
- http://albino-pitti.com/pub_img/file/luxutuvefazuwotiwew.pdfIn PDF document text
- http://lohsclassof70.com/clients/3/31/31ca850ff086a58b81c8700e10a01852/File/16326756827.pdfIn PDF document text
- http://dochoiotovn.com/uploads/userfiles/file/befunobadolamubatilix.pdfIn PDF document text
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608035615f67e---32219980291.pdfIn PDF document text
- https://ambientltg.com/wp-content/plugins/super-forms/uploads/php/files/691df7e74b31da9772ee99d036338457/97613387793.pdfIn PDF document text
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4d7a6a1e93---pewilefuwu.pdfIn PDF document text
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/mibo8sfj93e79fg6jj73a4i4vk/76270644312.pdfIn PDF document text
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/u6c1i2oeiv40hm6sluitkkbm20/rotekevuwetojawibijevi.pdfIn PDF document text
- http://vytvarnyobchod.cz/UserFiles/File/nivofudatojexef.pdfIn PDF document text
- http://casier-a-bouteilles.com/file/32387320124.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ec07.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC07 | 5464 bytes |
SHA-256: aefd7bf8727b413df7f9331ecd0e3b41b3dea0f7d8924b18a421549627b40cfb |
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font_01_sfnt_off0000fe9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE9E | 11316 bytes |
SHA-256: 608419c52176fd04606c25008c62cebb0f9a576dc804578e94766aaf172518f4 |
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