MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised CMS upload storage or disposable hosting, suggesting it functions as a link farm to distribute malicious content or phish users. The presence of PDF_URI and EMBEDDED_URL heuristics further supports this, indicating the document's primary purpose is to redirect users to external, potentially harmful, sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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 https://wastran.ru/uplcv?utm_term=arithmetic+sequence+with+different+common+difference PDF link annotation
- http://portalcom-b2b.es/img/user///file/_0689551001619951211.pdfIn PDF document text
- http://aqbnb.com/uploadfile/file/62783669234.pdfIn PDF document text
- http://nikacarpet.com/My_Project/Hamishe_bahar/ahar_img/files/28065654527.pdfIn PDF document text
- http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c8af9343f97---1437661958.pdfIn PDF document text
- https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/40c7260d0624e0b6cb6ded23e30ecfeb/86557748754.pdfIn PDF document text
- http://consulcongress.it/uploads/assets/file/fagepedurut.pdfIn PDF document text
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1c8a4a46f7---wisorini.pdfIn PDF document text
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079276512343---gujekufijexama.pdfIn PDF document text
- http://work4shop.cz/userfiles/file/99385977586.pdfIn PDF document text
- http://alpinedelhi.com/userfiles/files/43687235313.pdfIn PDF document text
- https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/abdb4b1799adc5dadac269b23a7dc89e/70774452800.pdfIn PDF document text
- http://hydrem.ru/images/file/71172109216.pdfIn PDF document text
- http://chinazzjx.com/d/files/91644574161.pdfIn PDF document text
- https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/8f855833d2947306edb911a3de7c0ebf/labadudofiboxugulatom.pdfIn PDF document text
- https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/160a194ab03f10---4821164149.pdfIn PDF document text
- https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/bccca257a0d897655759c20856c0adc9/71170109568.pdfIn PDF document text
- https://burgas-remonti.com/userfiles/file/gipulelenivebufujelojig.pdfIn PDF document text
- http://akinmedical.com/uploads/file/92927777246.pdfIn PDF document text
- https://wecafephuket.com/wp-content/plugins/super-forms/uploads/php/files/d2nuqr1p01jknau56fh5rmfma0/9525130689.pdfIn PDF document text
- http://esoftland.com/userfiles/file/matimigemixetutasonibixuk.pdfIn PDF document text
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/160703bc963989---sobuxixelujuvefobixewa.pdfIn PDF document text
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/6afffba0dac594d24374f21cbf990f5a/43776620620.pdfIn PDF document text
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a35501f243b---dinejulexuninexonafeki.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_off0000feee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEEE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011700.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11700 | 17524 bytes |
SHA-256: 1a9726712c5e20b0c6485b6e2426c1a8f22a0df66184b3c7ee6db972077ecba9 |
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font_02_sfnt_off000144c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x144C7 | 10848 bytes |
SHA-256: 46b7d5634e3fe2284ba68c8293905313760504892f977f41e122dcc02a3b3266 |
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