MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users to potentially malicious sites. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. The presence of external URIs and link farm characteristics strongly suggests an attempt to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://francoisdaulte.com/ckfinder/userfiles/files/49511091330.pdf
- http://hong-tour.com/FileData/ckfinder/files/20210705_045BF5913073C8FA.pdf
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160862712426e9---46748895192.pdf
- https://accesoriosalmayor.com/images/userfiles/file/libobofez.pdf
- http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d310d8cb256---dutovovoj.pdf
- https://anmoul.com/userfiles/file/76150002385.pdf
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609c13af7feb1---73375920568.pdf
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160f2f33ccf572---kekiloko.pdf
- http://teraval.cz/res/file/zinoluwizemopemekurumiso.pdf
- http://amuseonline.com/absite/userfiles/file/52515397080.pdf
- http://appletechsolutions.com/userfiles/file/xuvip.pdf
- https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160785babceb09---86795413007.pdf
- http://allycatering.com/userfiles/subupoxeguvopilusokokovas.pdf
- http://kleinschaden.expert/userfiles/file/ferorasux.pdf
- http://legalinet.eu/userfiles/files/62955079602.pdf
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d001653256---67281247981.pdf
- https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/33096e143fe555564f46fee71bc51fde/2408045682.pdf
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16087228a75e8d---99178014171.pdf
- http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/05c3802b6081a9759a48e171c8458850/78928406614.pdf
- http://belovosushi.ru/files/bejixi.pdf
- http://plncse.hu/php_data/file/64108416666.pdf
- http://samtle.net/ckupload/files/6139711946.pdf
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de0cf3ac858---2690757488.pdf
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/50fc96b0267af5040d29be65ba0006b0/553805122.pdf
- https://anfauglir.com/images/file/rekotubagasixevi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=16th+century+english+dramatist+and+poet
- 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_off0000f540.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF540 | 16792 bytes |
font_01_sfnt_off00010d57.bin5a36c4da777ca4b194b7fbb03cdd4addc6971effc3024435f64564e90424050e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D57 | 11296 bytes |
font_02_sfnt_off00012788.bin3ff3019627d78260dcfe3286f18a9fe7d1c4999e9b6dccc3fec9a654a985c307 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12788 | 17096 bytes |
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