MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier indicating a high probability of maliciousness. The presence of numerous links to compromised websites and disposable hosting, combined with a 'download button' lure, suggests a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and linked URLs indicate an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
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 https://crewmak.ru/uplcv?utm_term=play+store+downloading+2018
- http://gniortho.com/files/Upload/file/76932549534.pdf
- https://coil.hk/upload/files/47890430975.pdf
- http://webcertain.asia/contentupload/fckeditorUploads/organization_/file/98812027846.pdf
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ef8538cba9---45728618743.pdf
- https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613cbe0318359---93987471890.pdf
- http://melodylavernebettencourt.com/media/file/tupajixapirexefu.pdf
- http://lamarchesainterita.be/lamarchesainterita/imgdb/news/files/78024239125.pdf
- http://emotionpicturesfestival.gr/userfiles/file/68849003979.pdf
- https://calson.garment-pro.com/ckfinder/userfiles/files/dovevozozuluzapixifi.pdf
- http://qdsenfeng.com/data/files/pupebusurekexid.pdf
- http://leprofit.ee/cmsfile/contentfiles/sunezo.pdf
- https://twinslock.com/ckfinder/userfiles/files/803603395.pdf
- http://ubest.ru/images/file/sunagezukatagixag.pdf
- http://tianlanip.com/filespath/files/20210918072841.pdf
- https://novinfasteners.com/userfiles/file/7735412245.pdf
- http://banlinhkienlaptop.com/userfiles/file/dolonavomasuxotekif.pdf
- http://ippon.lv/uploads/File/84652724013.pdf
- http://ozdesignhouse.com/app/webroot/uploads/files/zapezewa.pdf
- https://drisraadentalcenter.com/userfiles/file/61154687524.pdf
- http://electriccityusa.com/images/fck_uploads/file/445247423.pdf
- http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/1583f86f378aaa85b8efe992cd5df9a2/zesazijo.pdf
- http://zjleiou.com/images/upload/File/mareped.pdf
- https://profix.fr/ckfinder/userfiles/files/xupaw.pdf
- https://fond.ru/userfiles/file/wuvisitadeb.pdf
- http://omonetach.pl/foto/ilustracje/file/wumogunugezumuzamiluror.pdf
- https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/c8c6f1677261bf66b11df47574cdfdfa/98937067594.pdf
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1613f4d2d11a09---dujexukubemaxakogok.pdf
- http://gotween.com/userfiles/file///bojumuxowuloponokikazuvof.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d2f6.bin6db6f7dece530c502c1864c401aee563093f21658625facbd9638de28c3ea6f6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2F6 | 11128 bytes |
font_01_sfnt_off0000ed0d.bin0b102a27ccdae81b162f3839f56843f1908f1dd6fa1f9fd0060aec5c7d066092 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED0D | 16412 bytes |
font_02_sfnt_off0001171d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1171D | 16792 bytes |
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