MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains a link farm pointing to multiple distinct hosts, many of which appear to be compromised CMS upload directories. The primary purpose seems to be redirecting users through these links, potentially to a phishing or malware distribution site. No scripts were extracted, and the document body was unreadable, limiting further analysis of the exact lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9769
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://zulassung4you.de/bilder/file/tewidijelafakefasisuwe.pdf In PDF document text
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/af3e7dc25c9b3937e3a215628330972e/34327575815.pdfIn PDF document text
- http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e22fedcf2---52206085436.pdfIn PDF document text
- http://dbhsreunion.com/clients/21010/File/xunemebojoparaxim.pdfIn PDF document text
- https://carea2plus.com/wp-content/plugins/super-forms/uploads/php/files/db69459b13ad05cadf61b0d9fbb717e8/13568901931.pdfIn PDF document text
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160810fee26663---zigukiwopu.pdfIn PDF document text
- http://eprdel.cz/userfiles/file/tosazosafox.pdfIn PDF document text
- http://jevades.com/aircraft/fckimages/file/28173121414.pdfIn PDF document text
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606f349b4344d---92211528904.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16076559062e4d---vepadifixipow.pdfIn PDF document text
- http://wtmongolia.com/materials/file/gadujadisifigaferaj.pdfIn PDF document text
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160941f2f5ea33---22317593198.pdfIn PDF document text
- http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c14216e6426---24538660495.pdfIn PDF document text
- https://heykidsletscook.info/wp-content/plugins/super-forms/uploads/php/files/3d10f2b0e3d09dfa71b15bbaa7f64acf/zoxinekugeze.pdfIn PDF document text
- https://www.hamburgeriaagricola.com/wp-content/plugins/super-forms/uploads/php/files/fogt32bia7e3l0oo73gl1i5tkc/35774058401.pdfIn PDF document text
- http://pttaccounting.com/userfiles/files/34786095525.pdfIn PDF document text
- http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/160919b3a67589---tifodigedulixolerapet.pdfIn PDF document text
- http://chokmanee.com/userfiles/file/feteresodobasa.pdfIn PDF document text
- https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/rt1tbib7e1jdjkq1u3gkjj7lmj/zuwigewebitofafewutebij.pdfIn PDF document text
- http://mamnonlittlesun.com/upload/files/40069626904.pdfIn PDF document text
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/1f6f5df40aed0a2ccfd8cb80911e2b8b/gowox.pdfIn PDF document text
- https://addsfly.com/userfiles/file/68570447352.pdfIn PDF document text
- https://biomedchita.ru/imeg_master/file/26913705438.pdfIn PDF document text
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/l281hrk9fmo2reh9j7cf9i0qc2/47590405244.pdfIn PDF document text
- http://bfr-bialapodlaska.pl/userfiles/file/53184991780.pdfIn PDF document text
- https://minlinart.com/archive/upload/files/wipadapoxuwosapaju.pdfIn PDF document text
- https://floridainvestment.cz/files/file/vosarekurazogizili.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=andrew+henry+parker+bowlesPDF 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f85e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF85E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011070.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11070 | 19364 bytes |
SHA-256: 6e32ed1e64b159bd651af6b7b7c19ae21b289472e5a36f03cda9af9f840dd929 |
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font_02_sfnt_off000140db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x140DB | 10712 bytes |
SHA-256: 1232dbd895f99caa1bd40b8dbaa5b7239124cface4655c1ffd4166329810a757 |
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font_03_sfnt_off00015939.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15939 | 16144 bytes |
SHA-256: 0c4985d965f2e55b15ea1fa3cb7d6f8fceb75cf058753215875aa2d860fcbbc8 |
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