MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to distribute malicious content or phish users. The presence of numerous external URIs and link farms indicates a clear intent to redirect the user to potentially harmful external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 6
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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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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 http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/a4f2836850e54648a8576bd0f437dfd3/54775482624.pdf In PDF document text
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/vlligcb9u9uvrbhvldh9n0qatc/subukef.pdfIn PDF document text
- http://chromavials.com/d/files/wunezafekudejusonip.pdfIn PDF document text
- http://placc.info/up_image/gerafavubuvujizowup.pdfIn PDF document text
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160ba233109493---nejanujikowatadanum.pdfIn PDF document text
- http://tuzvedo.hu/elemek/file/timam.pdfIn PDF document text
- http://didocrosby.com/imagenes/file/1623159809.pdfIn PDF document text
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160764423b13ff---javuxugusevadakexes.pdfIn PDF document text
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b80443e8dee---jikilesovobisufiresog.pdfIn PDF document text
- http://montaze.org/democms/userfiles/file/posegupamodigemamejor.pdfIn PDF document text
- http://meta-min.com/files/16869256242.pdfIn PDF document text
- http://oticonshop.net/ckfinder/userfiles/files/kumekipinipibabokew.pdfIn PDF document text
- http://archimax.ch/dynamic-images/cms/file/guvetu.pdfIn PDF document text
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/3a3a5903f91bbead764f51fc253bb252/41277045303.pdfIn PDF document text
- http://sanarina.de/ckfinder/userfiles/files/nulaxojakomakajade.pdfIn PDF document text
- http://drivingschool-brno.eu/files/28104803594.pdfIn PDF document text
- https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/7c370c14a49625c436360b69c9a52a4c/71836981550.pdfIn PDF document text
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608083f7b5644---mulenazuxedeba.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/10c330a32563ff5ae43e900ebd8903ad/gikuxuj.pdfIn PDF document text
- http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/160a9783e86cc5---86764313811.pdfIn PDF document text
- https://arrayamed.com/userfiles/file/niterixanokuzusemekeri.pdfIn PDF document text
- https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/7f708bc6ce41cef039df7fbf3083138f/61192626642.pdfIn PDF document text
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dfb3e867965---58788733434.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=limits+and+derivatives+problems+and+solutionsPDF link annotation
- 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_off0000dafe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAFE | 17040 bytes |
SHA-256: d0a068120aa549dfe346f0d3288516fcae754a847272ac5356df26547ba30b0b |
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font_01_sfnt_off00010802.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10802 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012019.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12019 | 10816 bytes |
SHA-256: 223a9ef645b8275e94646635d54e58a95dcfe5f5e010000621251e5b20ef3de5 |
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