MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a specific ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous embedded URLs pointing to various domains, many of which appear to be compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI indicators and the ML classifier output strongly support a phishing or malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://synerhu.ru/uplcv?utm_term=honors+chemistry+10th+grade
- http://aircond.md/upload_fck/file/xolomiwimudinavaba.pdf
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/cd7f9aee1553973e5844f588079aace8/60623112659.pdf
- http://bulk-supplies.com/userfiles/file/16364402683.pdf
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/a5f6019a66d2ca996be2a20c1c76b58f/xizagojoloxanusakof.pdf
- https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/de8ad9f1538981d27ff99c0e5c9debbf/puziviratofik.pdf
- http://rafaelokazakov.com/file/xakilo.pdf
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608f091b99eaa---45976287926.pdf
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/g7tjncrrr002mr5ta8ilfmn8i6/tenilevobawixamekop.pdf
- http://gentlemensquartersbarbershop.com/wp-content/plugins/super-forms/uploads/php/files/6c96fed0b63bb5a5b866ad743749f4c0/16795751667.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16083e36fe7262---gokizutobut.pdf
- http://harasim.cz/uploaded/files/mukekenupamirugukesoz.pdf
- https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/ed61ab5a7d11a8c53306ab68193dd8ff/xewoduluge.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160820e497956c---86069251844.pdf
- http://www.alexgis.com/siteuploads/editorimg/file/komupoko.pdf
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/16098442fe9eae---dekadunikovigaxofadipaw.pdf
- https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/eb6b268280111026837623d035b5c654/86320848406.pdf
- http://sunrui-ti.com/d/files/pibagidawukomifu.pdf
- http://victoryelectricalsupply.com/ckfinder/userfiles/files/22663160934.pdf
- http://jamessham.com/admin/usercontent/file/bonujokixopajuwovobafuluf.pdf
- http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082b83ee6fd8---67011061943.pdf
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e95c222b6f---25541902834.pdf
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/6ii3k23bndc1moltcgovnrt751/webukag.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_off0000e3e9.binf31f28c74b7cac93ebd21fa0bef99e0b6d795376d66ef269e79a90009991509c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3E9 | 17988 bytes |
font_01_sfnt_off0001128d.bin31b2bfd917d243e26ea3d457a5da8a0cb3126204fff5be1340fa06eb6a1c4553 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1128D | 11048 bytes |
font_02_sfnt_off00012bf4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BF4 | 16792 bytes |
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