MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous URLs pointing to compromised CMS uploads and disposable hosting, suggesting it functions as a link farm to distribute malicious content or phish users. The PDF structure and embedded URLs align with common tactics for luring victims to external malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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 https://irlanc.ru/uplcv?utm_term=what%27s+the+square+root+of+288+in+radical+form
- http://seoulgreeter.com/userData/board/file/wovuwexukisetinivupifowaj.pdf
- https://mrmobilewebsite.agency/wp-content/plugins/super-forms/uploads/php/files/fc1bf1eb2988fa9f57dfd97ec747c2df/79316865890.pdf
- http://easternsheep.by/app/upload/file/26386810742.pdf
- http://meandnetworking.com/ckfinder/userfiles/files/kawitupa.pdf
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6327cf3141---gafakajawubebokosife.pdf
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f13401c4ee---7619556034.pdf
- http://www.logomarcanet.com/userfiles/file/14418010167.pdf
- http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16078e71db75e8---zojimudojowuras.pdf
- http://abovomedia.hu/_user/file/fipedotudoxiromowetopa.pdf
- https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/45ba80f1b683b8990570b99ed4668149/jexewokigug.pdf
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/a75df5f0ee5416ef64e5aadf4d02ae28/joforatokupokusejupu.pdf
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/efaf93641d019750e08540f50ca0cd3f/xumaran.pdf
- https://immo-cjeanpaul.lu/userfiles/files/nerenunud.pdf
- http://secretinvitation.net/images/files/zapelogijok.pdf
- http://alexandraharris.com/clients/36054/File/80281073388.pdf
- https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/842afe6619d4a4caff433e3460e67fd6/65160933083.pdf
- http://nanumed.ro/uploads/files/sewul.pdf
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160ddf09d0f75b---daxepaxeremuzixetinozagug.pdf
- http://kameleonhastanc.hu/files/file/lalosixa.pdf
- https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/ib40m63bmqv5t4p7ibhes4kue7/810807675.pdf
- https://zoorichi.com/temp/fckeditor/file/84375000136.pdf
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b95ec7c3727---87478658578.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_off0000f8cf.bina76e6ac98578fee5621a34de231b8ab9e9daf856a7cf1c5a11bfa7fadacf6d33 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8CF | 11344 bytes |
font_01_sfnt_off0001133a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1133A | 16792 bytes |
font_02_sfnt_off00012b4c.bin724ffce58e2cf6e82a0fd4ecd5860b81764a67e7567cbbb288a00a133b262e3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B4C | 18512 bytes |
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