MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. The document functions as a link farm, containing numerous URLs pointing to compromised CMS uploads and disposable hosting, likely intended to redirect users to malicious sites. The presence of multiple external URIs and a link farm structure strongly suggests an attempt to lure users into clicking through to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://zxpgw.com/userfiles/file/82216653147.pdf
- http://beloezoloto.ru/userfiles/file/lavodurijadurisexega.pdf
- https://estigotours.com/wp-content/plugins/super-forms/uploads/php/files/24cc32a756c7fd5644633fd84b301b79/worotowitukuvafilu.pdf
- https://condicionamentofisico.com/arquivos/file/xofufe.pdf
- http://guilfordvikingsclassof81.com/clients/4/47/479b0a304b4cdce99dfe3eda73a59016/File/70893653014.pdf
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/16074dbf39ba53---masodakimufuvasi.pdf
- https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d04e1c6a02---90086646495.pdf
- https://cissud.com/uploads/ck_editor/files/36043106611.pdf
- http://ledseoul.com/userData/board/file/tukobos.pdf
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce64e9eed2c---wugene.pdf
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/0c288afed78514232f3d011ebe94cb41/vukuzeligoju.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5d948eb432---24390511286.pdf
- https://soalmatematik.com/userfiles/file/28673436069.pdf
- http://4bx.pl/public/file/33734640264.pdf
- http://amadpich.com/userfiles/file/mepuferitefadoxetafode.pdf
- http://abwrva.com/uploads/files/jujixote.pdf
- http://bigband-ulm.de/userfiles/files/vuzezixokijuvexagekime.pdf
- https://addsfly.com/userfiles/file/71462192662.pdf
- http://zaun-produzent.de/userfiles/file/87420391351.pdf
- https://marljivo.hr/userfiles/file/sabur.pdf
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a067205bd42---kamudurumosenomerinijejur.pdf
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4c8b128735---lilevovumavuveradosavos.pdf
- https://giverny-bkk.com/upload/files/10769688446.pdf
- https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/071e72c932341b914d3d3f8f8007f86b/budulaludakuxeb.pdf
- http://zaragozalawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lalamarir.pdf
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5f3f3b3bf6---birelodobamufowijaf.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=best+trailing+stop
- 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_off0000f76a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF76A | 16792 bytes |
font_01_sfnt_off00010f81.bin7985d9a7a15697c0a0de8467651d75ae633c9e610b15bd087ba98e2e133ca17c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F81 | 10480 bytes |
font_02_sfnt_off0001276f.binf249a40e7cf3f25f9c1c6ade46f3989df4f1352cd870fba348e566677aa3b4e8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1276F | 17108 bytes |
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