MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of links, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely serving as a lure for phishing or to exploit vulnerabilities. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://eurogeographyjournal.eu/admin/fckfiles/file/jurevepamalejamerajojo.pdf
- http://www.cpiequipos.com/assets/images/user_files/files/41608137691.pdf
- http://dzbnf.com/upload/file///36591718099.pdf
- http://ahchala.com/img/file/tuwotibunezinarizomi.pdf
- https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/24605ddd9663f2e317265273ede2b7fb/43042233400.pdf
- http://grapes4u.ca/sites/all/sites/grapes4u.ca/files/60966512907.pdf
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/b1d8bbf3a060262a58df0198e4ca3c8c/18528023602.pdf
- http://szentistvanpatika.hu/upload/file/nuwavafawixoxogo.pdf
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/dbc2753125241006f2fb53670df761b4/51693096910.pdf
- https://weeb.nu/userfiles/file/34570610943.pdf
- https://ourcampuswindow.com/ckfinder/userfiles/files/mukuraxolowuri.pdf
- http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613eccbd05c83---18266242724.pdf
- https://maria-galland.ru/files/file/sisovavumagumipinaxoralu.pdf
- http://andrenickels.de/ckfinder/userfiles/files/59453387379.pdf
- https://lordoptika.hu/files/files/77546359615.pdf
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/lsuqi9fbmkmla881o98hv3349r/tovowovami.pdf
- https://iphonerepairservice.nl/app/webroot/files/userfiles/files/zafozikupubefafimab.pdf
- http://ds-dq.com/uploadfile/1632143407.pdf
- http://www.alliance-bio.com/user_data/editor/ckfinder/core/connector/php/upload/files/girodiwoperagerisuvi.pdf
- https://brs.jo/userfiles/files/25708626517.pdf
- https://inprovitecuador.com/ckfinder/userfiles/files/fijawupo.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=fortnite+chapter+2+season+6+free+skins
- 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_off00010b9a.bin1cdb30bfcd6b13ed417599557814922b408c98ae8748ea3797e538a67566261e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B9A | 17308 bytes |
font_01_sfnt_off00013830.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13830 | 16792 bytes |
font_02_sfnt_off00015047.bin85097fef6a60ecde6f71951d829868d1694ae87b7f38b39ca28bc1acc54e5761 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15047 | 10888 bytes |
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