MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many embedded URLs pointing to various websites, including those hosted on compromised WordPress installations. The `utm_term` parameter in one URL suggests a potential phishing lure related to file transfer instructions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://crysiq.ru/uplcv?utm_term=cara+memindahkan+file+dari+android+ke+iphone PDF link annotation
- http://becucci.it/userfiles/files/9562573246.pdfIn PDF document text
- http://immobiliareborghi.com/userfiles/files/52308834726.pdfIn PDF document text
- http://www.pattyn360.com/upload/forum/files/91784233989.pdfIn PDF document text
- https://riondene.ch/img/uploads/file/93117793262.pdfIn PDF document text
- http://gpp300.fr/userfiles/file/80267335407.pdfIn PDF document text
- http://cesarrodarte.com/userfiles/file/lefituboguxewegom.pdfIn PDF document text
- http://etnorom.hu/pictures/6314699677.pdfIn PDF document text
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613e077b79b59---1749311096.pdfIn PDF document text
- http://bulongvungtau.com/media/ftp/file/jadulariw.pdfIn PDF document text
- http://come2menorca.com/images/file/jimugatarelofijava.pdfIn PDF document text
- http://trlgpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/59240164872.pdfIn PDF document text
- https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/161320b15b6c86---tasepi.pdfIn PDF document text
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b251fab4c2---90541264405.pdfIn PDF document text
- http://xn--3e0b556bhrbowi6undva.com/ckupload/files/sibukidukomabiriberumod.pdfIn PDF document text
- https://stdtekstil.com/upload/ckfinder/files/retusasopiruke.pdfIn PDF document text
- https://nayyaralidada.net/alpha/ckfinder/userfiles/files/43991870223.pdfIn PDF document text
- https://0286869143.com/editor_images/files/29099179166.pdfIn PDF document text
- http://madmojo.com/fckupload/file/kimazutizajebaba.pdfIn PDF document text
- http://xn--h49al71atridzo.com/userData/board/file/nexokom.pdfIn PDF document text
- http://cokhihoaiduc.com/uploads/files/53285508447.pdfIn PDF document text
- https://valubil.com/public/uploads/cms_file/cms_files/pulonuvusobuvogilojovawep.pdfIn PDF document text
- https://my-natural-style.net/upload/files/kirabamegupejavadifa.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_off0000e369.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE369 | 16672 bytes |
SHA-256: 9196f1be05b430fd59a01c15213388dbbe5cd979de86f0fcdbef1f3b25e7ddc8 |
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font_01_sfnt_off00010e9f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E9F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000126b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126B6 | 10620 bytes |
SHA-256: bfe1f654facfe8898ff023479bc7bfbcf947df26ab1fb72b0382c6cc12612434 |
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