MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many pointing to compromised or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery. The heuristics indicate the PDF is structured as a link farm, with multiple distinct hosts and a high number of links, some using UTM parameters for tracking, further supporting a malicious redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://infiniti.e-library.tw/uploads/files/putugibuzuxebewev.pdf
- http://blesk-stroy.ru/userfiles/files/85903392687.pdf
- http://jshtextile.com/UserFiles/file///fuwomijet.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a977034195f.pdf
- http://wooshin.kr/uploaded/file/16200083846102e93493d38.pdf
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098c84e071c2---4101132291.pdf
- https://smartstone.ca/userfiles/files/23170690925.pdf
- http://utuin.net/files/fckeditor/file/vakegawupogebepajom.pdf
- https://eternalbliss.net/file/derov.pdf
- https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/715ab397f23bc2ee6ce4cd86c2d15c6b/77005216563.pdf
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609984918602f---74989195448.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606f2d490cbbb---27660107919.pdf
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/160993da9e04ed---53830317620.pdf
- https://pilotcenter.gr/wp-content/plugins/super-forms/uploads/php/files/aq33183apa9hnlfu82fsjf9gi8/pulukadutuvasixegex.pdf
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a210bba435a---fedeleviruf.pdf
- https://powerliteaac.com/userfiles/file/jexodepitujubupodijitev.pdf
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082d3ace63ec---badupipediweke.pdf
- https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/85834b609f822eda833640e3b5a4706d/30718219209.pdf
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af400e3afc0---40661635416.pdf
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/160e922c56daa6---gorevadu.pdf
- http://www.sphotobooth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071f9f983c84---13190931456.pdf
- https://havanic.com/cache/fck_files/file/natawed.pdf
- http://aygroupmuh.com/image/files/gaporavumeras.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=hamza+tzortzis+the+divine+reality+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_off0000dbf9.bin3edfd4ed7fa0750e735fc1a6caf695e032b3ce61e62df4b84c054b3a5c6a23f5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBF9 | 10996 bytes |
font_01_sfnt_off0000f553.bina105c14aa79a1d5d32c573264500999736c62efd48535b0dd3295e61f59ab1b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF553 | 18888 bytes |
font_02_sfnt_off0001269e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1269E | 16792 bytes |
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