MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains a link farm with numerous URLs pointing to other PDF files, suggesting a phishing or malware distribution scheme. The presence of external URIs and link farms indicates an attempt to redirect the user to malicious content hosted elsewhere.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://pistant.ru/uplcv?utm_term=example+of+arm+muscle PDF link annotation
- https://itscebu.com/upload/file/20210905070432.pdfIn PDF document text
- http://nissanotogovap.com/uploads/images/files/bibavinadozig.pdfIn PDF document text
- https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147407ed7ad5---44886115855.pdfIn PDF document text
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614c5852eb2e7---85110705123.pdfIn PDF document text
- http://hingliltd.com/userfiles/posaxoxamojifazig.pdfIn PDF document text
- http://alicekhenrylawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/guzedotuwugabeb.pdfIn PDF document text
- http://kepco-group.com/uploaded_files/userfiles/files/53901233332.pdfIn PDF document text
- http://duoctruongxuan.vn/userfiles/image/file/31545083366.pdfIn PDF document text
- https://pindimana.in/uploads/file/gaxogito.pdfIn PDF document text
- https://bda.ch/ckfinder/userfiles/files/kobatuxobiduwad.pdfIn PDF document text
- https://ambient-interier.cz/files/files/90963470274.pdfIn PDF document text
- https://vongtaytramhuong.vn/upload/files/45134120570.pdfIn PDF document text
- http://dayuntang.com/assets/uploads/ckedit/files/20210905110736.pdfIn PDF document text
- http://www.atccs3.it/atccs3/fckeditor/editor/ckfinder/userfiles/files/lobusotajuxuwidofupep.pdfIn PDF document text
- https://clinicaabrahaoosta.com.br/ckfinder/userfiles/files/xasasazefukoseviromugo.pdfIn PDF document text
- http://abwcrainhwy.com/uploads/files/dolemaloxajorodaboli.pdfIn PDF document text
- http://kondicionery-ivanteevka.ru/upload_picture/file/15715690065.pdfIn PDF document text
- https://vandolderskb.com/images/usr/72815881779.pdfIn PDF document text
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1614a237d2a98d---lotimujiwifer.pdfIn PDF document text
- https://tidurmalam.com/contents/files/57224114262.pdfIn PDF document text
- https://bor-diing.com/upload/files/64578221614.pdfIn PDF document text
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/60suu5l2l3gqqes030b7h743o6/34491623404.pdfIn PDF document text
- http://cartopack.be/Images/file/vulenisusiki.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_off0000b0e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0E9 | 16144 bytes |
SHA-256: e66ca3e1fa876fa632c1d40e49e724317c76d4bdfd9e1ac211124c06b3775ece |
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font_01_sfnt_off0000d8e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8E5 | 10532 bytes |
SHA-256: 6db02e91a5a9103d6fd1c2994a096ba80b95e790e4696b2d18e1aeabb5c7d1f8 |
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font_02_sfnt_off0000f0f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0F1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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