MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous URLs pointing to various websites, many of which appear to be compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and link farm heuristics strongly indicates a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://oniceh.ru/uplcv?utm_term=fall+coloring+worksheets+for+kindergarten PDF link annotation
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a5694081e2b---82079216069.pdfIn PDF document text
- https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/08a290c6dc7a1c74d4e7eedf44cd6735/gawesijuvifan.pdfIn PDF document text
- http://royalwedding.jp/images/blog//file/naramofonubudare.pdfIn PDF document text
- http://yunnanyingxiang.com/ckfinder/userfiles/files/56796666010.pdfIn PDF document text
- http://srividyaastrology.com/userfiles/file/1007738281.pdfIn PDF document text
- http://vagtteam.dk/userfiles/Files/kudijobi.pdfIn PDF document text
- http://www.physedu.in/newsite/userfiles/files/56205540499.pdfIn PDF document text
- https://greenvalleykerala.com/ckfinder/userfiles/files/savudasewolexipatemog.pdfIn PDF document text
- https://emilline.dk/ckfinder/userfiles/files/befetejurojavorefimexezu.pdfIn PDF document text
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/seip15v5k212brt6u5ba4ngnqm/luminixoneninekepeda.pdfIn PDF document text
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9cc1cb4383---dagotesoxupunibepizivabi.pdfIn PDF document text
- https://chungcungoaigiao.net/uploads/files/29551752592.pdfIn PDF document text
- https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/mthit2u032rt5k8qr04kcrrd24/dobibalepususukisuvinuzoz.pdfIn PDF document text
- https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/7db2d3237e77ac251b199eecc426266e/doterob.pdfIn PDF document text
- http://rudolphi.nu/userfiles/file/luveto.pdfIn PDF document text
- https://taipeitccia.org/CKEdit/upload/files/bajikibosumewepi.pdfIn PDF document text
- https://aspit.ro/imagini_ws/mewuvasamepenisaboxonesos.pdfIn PDF document text
- https://hoanghaie.com/Images_upload/files/75313906495.pdfIn PDF document text
- http://ypdtools.com/ckfinder/images_store/files/25441428979.pdfIn PDF document text
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/1611d7f24df5ee---kekugofopaduwuvadadu.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_off0000b911.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB911 | 16396 bytes |
SHA-256: c1d064f0388dcf5c5fff4d6cb971c73ee186554fc88532e11f10ca6edeb20677 |
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font_01_sfnt_off0000e2d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2D5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000faec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAEC | 10908 bytes |
SHA-256: 227fe0c89d75819e5d4b62daf9df14e7a11a0d297de245ac59b2cfefdbd4cce0 |
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