MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains a large number of embedded URLs, many of which are part of link farms hosted on potentially compromised or disposable domains, indicating a phishing or malware distribution attempt. The PDF structure and numerous external links suggest it's designed to lure users to malicious websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://krisoc.ru/uplcv?utm_term=your+friend+the+rat+watch+online PDF link annotation
- http://connect-senior.ch/uploades/userfiles/file/42767178138.pdfIn PDF document text
- https://artistaone.co/userfiles/files/99241468334.pdfIn PDF document text
- http://xn--989ap7r0xbd5x.com/upload/fckeditor/file/54576718331.pdfIn PDF document text
- https://horizontire.com/userfiles/file/jojadasu.pdfIn PDF document text
- https://ustunbilgisayar.com/userfiles/files/37345144431.pdfIn PDF document text
- http://tbeaindia.com/userfiles/file/xetilazimo.pdfIn PDF document text
- https://olamare.com/img/uploaded/file/kigubisigeder.pdfIn PDF document text
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/161304903e45f3---55652112484.pdfIn PDF document text
- http://chemtron-vostok.ru/media/file/1066993098.pdfIn PDF document text
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/c3cf6331f6948b1e36e7ab559212e24e/zajetitasakes.pdfIn PDF document text
- https://parklanehotel.asia/userfiles/file/sawajisunavafilolu.pdfIn PDF document text
- https://karpzbeldowa.pl/uploads/userfiles/files/50483428446.pdfIn PDF document text
- http://www.ddu-hk.cz/ckfinder/userfiles/files/20279201598.pdfIn PDF document text
- http://levakov132.ru/userfiles/file/punuzepogirirolaran.pdfIn PDF document text
- http://tagsu.com/attachments/fckattachments/file/tegopasod.pdfIn PDF document text
- https://pharma-tools.eu/galeria/file/bewiradigalesakirukodigi.pdfIn PDF document text
- http://tinhdauvietnam.vn/upload/files/7670611329.pdfIn PDF document text
- https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/61925b48606d721a54a166e5bb1cfc88/83021023899.pdfIn PDF document text
- https://emotionalgift.youngzonejewelry.com/ckfinder/userfiles/files/56113220149.pdfIn PDF document text
- http://sunrui-ti.com/d/files/bimudobifubejetuvagetetuv.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_off0000c869.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC869 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e080.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE080 | 10572 bytes |
SHA-256: 35d9f105ab78c93b5196af711896217375edb98a9fcbcfb307dd8c1d5445bfe0 |
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font_02_sfnt_off0000f893.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF893 | 18328 bytes |
SHA-256: 5228e9aae7d933f4344f7457ce13920864af1822ef7d5f662daa046b4df1244b |
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