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 pointing to various websites, many of which appear to be hosted on compromised or disposable domains. This behavior is characteristic of a link farm used to distribute phishing content or malware. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://parzenica-bialka.pl/userfiles/files/gakatirur.pdf
- http://srividyaastrology.com/userfiles/file/34028477176.pdf
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606e32c4b9d0d---71162335158.pdf
- http://vytvarnyobchod.cz/UserFiles/File/97515476419.pdf
- http://kahounova.cz/userfiles/file/62712759421.pdf
- http://peaceinsrilanka.lk/ckfinder/userfiles/files/56025928706.pdf
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/ir397bcc0cl5bboiueug6v9c1t/26866903526.pdf
- https://signika.pl/Upload/file/65187691480.pdf
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/40d6a235ed5799f4f0203e15e6e778b9/82313299326.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/b8b911f94d6025ffaab98f480e4fe0da/tugisawejovekopanaxoku.pdf
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f8e10dc3d7---tawotagomagivotumosa.pdf
- https://accuratesearch.com/userfiles/file/32119462970.pdf
- http://rld-carbon.ru/file/toborifunilusipomaneta.pdf
- http://brickchamber.com/ckfinder/userfiles/files/7266075036.pdf
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e8b9666d1b3---61832728787.pdf
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/dotonoxelu.pdf
- https://autoprofi.ua/userfiles/file/66825055671.pdf
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/160aa4dde4234b---95760460846.pdf
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160a3508cd1d1c---jefavotujegaburisore.pdf
- http://mcutech.net/upload/2021/06/file/16244937251201110201.pdf
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/d0614bdb68725ad3356b3d7f9d9ff2e8/60268067141.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16083fe58cab7e---33556104224.pdf
- http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160987f85f1615---dofizep.pdf
- https://businessservicesuk.com/userfiles/file/zodipu.pdf
- http://dothi.info/images/files/73467271175.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=the+up+and+coming
- 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_off0000ece5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECE5 | 16792 bytes |
font_01_sfnt_off000104fc.bin4da53772cea36f719bbe0f5f46896c543895de194560e41d2b78a211a92adc56 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104FC | 10612 bytes |
font_02_sfnt_off00011cbb.binfd4141d075067153b126e1a2b15e30a06cb366d4a6cbaad005124c3504e2ee3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CBB | 17128 bytes |
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