MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Numerous heuristics indicate the PDF is part of a link farm, with many URLs pointing to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs, such as 'https://huntic.ru/uplcv?utm_term=o365+security+portal', are likely used to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9902
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://huntic.ru/uplcv?utm_term=o365+security+portal PDF link annotation
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161442d259f37c---gibuwaguparanujozarupomi.pdfIn PDF document text
- https://movimientofamiliadejesus.com/images/uploaded/file/xunixo.pdfIn PDF document text
- http://www.deewanalarab.com/up_imgs/janukitazu.pdfIn PDF document text
- http://tnslib.su/userfiles/files/luwagavi.pdfIn PDF document text
- https://xehowo24h.com/images/ckeditor/files/20329621456.pdfIn PDF document text
- http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16132fc4b98153---pijaketukomilofifikozaz.pdfIn PDF document text
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16139d05113354---felobamulatate.pdfIn PDF document text
- http://nomorecpapmachine.com/userfiles/files/4821124133.pdfIn PDF document text
- http://etalentlink.com/uploadfile/file///2021092103041333.pdfIn PDF document text
- http://kanizsakran.hu/userfiles/file/3836797957.pdfIn PDF document text
- http://meetburgerusa.com/uploads/files/30509590880.pdfIn PDF document text
- https://sowlindia.com/userfiles/file/51482971335.pdfIn PDF document text
- http://hongdacable.com/d/files/xotutewumera.pdfIn PDF document text
- http://geoass.eu/userfiles/files/dinaseluruxewi.pdfIn PDF document text
- http://btfa.tw/upload/files/63832327566.pdfIn PDF document text
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c0de1a840b---25539899055.pdfIn PDF document text
- http://yuanhebiotech.com/upload/files/tofijelaxu.pdfIn PDF document text
- http://cnwt.mgo.cool/upfile/files/2021/09/05/xagunesilunasekobatu.pdfIn PDF document text
- https://mr-alian.com/upload/ckfinder/files/petixotawowogewejora.pdfIn PDF document text
- http://gtlitalia.com/userfiles/files/kixogipalub.pdfIn PDF document text
- https://shinaltd.ru/images/file/61368718757.pdfIn PDF document text
- http://suarezbeltran.com/aym_images/files/21057750201.pdfIn PDF document text
- http://stluciachamber.org/uploadedImages/contentImg/file/joxonuvixusetawopejasu.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dcbb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCBB | 24764 bytes |
SHA-256: 9b40149296aaa8b20b5a6ae23a967c821fcd2451c98ee3d74750383e035aef3b |
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font_01_sfnt_off00011be2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BE2 | 10976 bytes |
SHA-256: f603f1f550fd00a16f8e59a570d56375feed6fbd3c5c682ff83ecf11916ba185 |
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font_02_sfnt_off0001359d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1359D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_03_sfnt_off00014daa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14DAA | 2128 bytes |
SHA-256: 442305b4f54fcca11131d7265c8084a350277580795f89700139d3a221274d69 |
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font_04_sfnt_off00015742.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15742 | 16336 bytes |
SHA-256: 12e538d63ed9eb3e828aba85be27d26ebde7ae4f2d040eda243abb2990f537ef |
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