MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains a link farm pointing to multiple compromised WordPress upload directories and disposable hosting, suggesting an attempt to distribute further payloads or phish users. The presence of a 'download button' heuristic reinforces the lure aspect of the attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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 http://crocepadrekolbe.it/userfiles/files/66979699724.pdf In PDF document text
- http://dchs1961.com/clients/871949/File/71039124005.pdfIn PDF document text
- http://m4klynchburg.org/clients/3/34/34420611de4c9c7593cf5e5fe12de6df/File/35402610880.pdfIn PDF document text
- https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/bg1mviq5m36d14tqqet3r9bghd/jitibutimikevu.pdfIn PDF document text
- https://toolsatool.com/userfiles/files/tigukoriju.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a3d3e36214b---39534721937.pdfIn PDF document text
- http://circolosilverblufitnessclub.eu/userfiles/files/punemamaropezofis.pdfIn PDF document text
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160811237bd70d---73085860363.pdfIn PDF document text
- http://minuspk.ru/minuspk.ru/userfiles/file/sumawal.pdfIn PDF document text
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16084de04ab0ad---23916425398.pdfIn PDF document text
- http://fairway.cc/images/blog//file/pubotuwu.pdfIn PDF document text
- http://kristenpell.com/userfiles/files/87245166045.pdfIn PDF document text
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160a0c262d200f---35169379197.pdfIn PDF document text
- http://sns.hu/_user/file/90187616423.pdfIn PDF document text
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/baf9cd2c06aa20776163e83b0b1d4871/kokulosidudupowoxezejuri.pdfIn PDF document text
- http://nhasachconggiao.com/luutru/files/rokunupufosozekomo.pdfIn PDF document text
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf7ed55741d---kolaxuzurozatorunefuvuk.pdfIn PDF document text
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a2277bd3e12---42187180147.pdfIn PDF document text
- http://joelcsimonesq.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/luwipinoxolovunofafage.pdfIn PDF document text
- https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/1525221f03e8c734e020cc9012a29eb0/jexipumufineko.pdfIn PDF document text
- https://alshaabcoop.com/userfiles/file/90921761921.pdfIn PDF document text
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/9dcccd2a8841a9b95ab1e4c1581a6c4c/tanuxunanatudegag.pdfIn PDF document text
- http://aryajob.com/user_upload/file/48759336118.pdfIn PDF document text
- http://toanthinh.vn/webroot/img/files/vinexo.pdfIn PDF document text
- http://adabaskimerkezi.com/upload/file/xuvavufutixakunuwupemob.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=guitar+tabs+and+chords+pdfPDF link annotation
- 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_off0000d1e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1E0 | 10816 bytes |
SHA-256: f3815345761bba42f5096ee43a378c601b226db01957b12ee94c7f931c9f0ead |
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font_01_sfnt_off0000ea86.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA86 | 16640 bytes |
SHA-256: bbd7394b7cc0bac4b4e282f505a539603f72f4b3a053e1d8aea4c735d84504db |
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font_02_sfnt_off000115a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115A1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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