MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites or use UTM parameters, indicating a link farm designed to redirect users. Heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest a phishing or malware distribution attempt. The ML classifier and ClamAV detection further confirm the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
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://ketchas.ru/uplcv?utm_term=vehicle+multimedia+entertainment+app+autolink
- http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161373e814d679---vulutiziz.pdf
- http://webinaris.net/ckfinder/userfiles/publics/files/27501906418.pdf
- http://yjbiotech.cn/upload/files/66385469280.pdf
- http://www.bluewhaleline.com/image/upload/File/40273209147.pdf
- http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/16144aa19392c0---24742334486.pdf
- http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/16135c76200a5b---45980096524.pdf
- http://duz-drustvo.si/uporabnik/file/47488876524.pdf
- http://mudrkanuch.sk/editor_uploads/system/files/76304929476.pdf
- http://stellarvvv.ru/ckfinder/userfiles/files/91266102695.pdf
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614fbac8e04f7---kufuguferam.pdf
- https://o2opr.co/userfiles/files/solifovuginonunikifi.pdf
- http://hingliltd.com/userfiles/gapirodelakimoxigewalava.pdf
- http://hdurmuslar.com/images_upload/files/3652716402.pdf
- http://densayhongngoai.com/uploads/userfiles/file/mixanumodopativakewat.pdf
- http://www.satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/kojapakubaxurunod.pdf
- http://aedelsur.com/contenido/files/vobojitadujesozite.pdf
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/a6d5341666ba9efe6e9e632f8f583b76/zovisudedajiboroz.pdf
- https://client-sms.com/ckfinder/userfiles/files/23495140925.pdf
- https://al-farh-iq.com/upload/userfiles/file/rigeziv.pdf
- http://studiolegalebisantis.it/userfiles/files/69737623340.pdf
- https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135eefb2da91---31539922394.pdf
- http://zsdbiopharm.com/upload/files/40096041493.pdf
- http://ros-audit.com/i/up/file/88318560188.pdf
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136483ab8f20---zedone.pdf
- http://werkkledingverkoop.nl/images/docman/files/linifipofilu.pdf
- https://itandem.net/ckfinder/userfiles/files/fuzepijevotevuvex.pdf
- http://paneldeconso.com/userfiles/file/vipuxe.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_off0000b8bf.bin60167d87b6b2aa71c58b916357686207118739dca5b3ad46eafe2e8ca6265339 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8BF | 10772 bytes |
font_01_sfnt_off0000d158.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD158 | 16792 bytes |
font_02_sfnt_off0000e96a.binb2a99b98e323a8430ef3a08daf13b88164bfb7ca0b76039f5d46c0c5c5b4bb6c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE96A | 16524 bytes |
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