MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, specifically identified as a phishing trojan. It contains a link farm pointing to compromised WordPress upload storage and other disposable hosting, designed to lure users into downloading further malicious content. The presence of numerous unknown URLs suggests a phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 http://domingo.hu/ckfinder/userfiles/files/ganabafezuxugijuroxowe.pdf In PDF document text
- http://zezoalza.com/ckupload/files/bewake.pdfIn PDF document text
- http://cukiernia-waltar.pl/qcms/userfiles/file/xagugag.pdfIn PDF document text
- http://jd6618.com/jd6618/file/2021-9/file/LwpCms2021_09_07_06_30_12_1879.pdfIn PDF document text
- http://aaz.sk/editor_uploads/files/32040329783.pdfIn PDF document text
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/0cefff1b57406e56ca9c8693422cb94b/5717196668.pdfIn PDF document text
- http://goldartline.ua/userfiles/file/misapobo.pdfIn PDF document text
- http://kondicionery-krasnogorsk.ru/upload_picture/file/ludejutuzu.pdfIn PDF document text
- https://lederstuehle-shop.de/ckfinder/userfiles/files/kezewuje.pdfIn PDF document text
- http://apothepharma.com/upload/files/lajovozeroj.pdfIn PDF document text
- http://noithattamphuong.com/upload/files/76062208236.pdfIn PDF document text
- http://reklama-kemerovo.ru/files/files/rijafivotojotat.pdfIn PDF document text
- http://hidramaco.com/files/files/tojebiperaxadexefujobod.pdfIn PDF document text
- http://e-sheremet.com/img/falavokususirepafobepinak.pdfIn PDF document text
- https://threadworx.com/thread/admin/uploads/file/fuvoxumoxedotipifif.pdfIn PDF document text
- http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/161324e73c9004---kajexadiv.pdfIn PDF document text
- https://carrieres-pierre.com/userfiles/file/babajerulaxonanejabuv.pdfIn PDF document text
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/9407bc385739d107b4d590a483956ea0/kagoguzire.pdfIn PDF document text
- https://iwanbim.iwan.co/userfiles/files/30769327432.pdfIn PDF document text
- https://sunrise-photon.com/upfiles/editor/files/14824977028.pdfIn PDF document text
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161311f6d98f57---sezavapafupavegixiv.pdfIn PDF document text
- http://spielundlicht.de/content_provider/documents/files/fubamemarakisevunudo.pdfIn PDF document text
- http://thegioixedap.net/upload/files/74983842413.pdfIn PDF document text
- http://tiyuchangdi.com/upload_files/files/20210907_011551.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=gamers+gltool+pro+with+game+turbo+apkPDF 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_off0000e041.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE041 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f853.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF853 | 20408 bytes |
SHA-256: d86ad88c409ee9ba6f5f4ab39f5b7da07629643d567cf3ac72a4bd862698b1ed |
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font_02_sfnt_off00012de1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DE1 | 11052 bytes |
SHA-256: 89a575a377ba77a11abc5e6d7962ebcf2e45a84b5fc0f09ccb815c23099fbee7 |
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