MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as a malicious PDF by ClamAV and an ML classifier. It contains numerous links pointing to compromised WordPress sites and other disposable hosting, suggesting a link farm used for phishing or malware distribution. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a non-clustered link farm on disposable hosting, further supporting this attack pattern. No scripts were extracted, and the document body was unreadable binary data.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091d708cc10b---38259758191.pdf
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608cfeec2a10f---fodetuxagapup.pdf
- https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/o7dsup2kp2a8jro7ppiud71l52/xemiwu.pdf
- http://animalscipublisher.com/files/upfiles/file/kitabimazurefenusaze.pdf
- https://yukkumpulgroup1.com/contents//files/72703132565.pdf
- http://fw-simple.com/uploads/files/dabepe.pdf
- http://madmojo.com/fckupload/file/kukitazafuzebemod.pdf
- http://westernstudioservice.com/admin/userfiles/file/xusukekikegitowekoxifoki.pdf
- https://www.autodepotperformancegroup.ca/wp-content/plugins/super-forms/uploads/php/files/8ub8qeoq0b7b1glh8nnea4mprj/dekeremosozo.pdf
- http://meteosputnik.ru/userfiles/file/xobujegiwul.pdf
- http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16096de9d41695---pelodekanajagafetilu.pdf
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b21f5ce54a---41358515303.pdf
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac9f46ac6c2---55632477577.pdf
- http://libertyquad72.fr/userfiles/file/63540966244.pdf
- https://www.colours-of.com/wp-content/plugins/super-forms/uploads/php/files/c03o54hpmc087613itqhh4khsp/6156311113.pdf
- http://atut-biuro.com/uploaded/file/3924049519.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160bd727a8867b---24775393836.pdf
- https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/a78bb94467ff9990cbe2b88fcd6d296c/28645057118.pdf
- http://geyikkimya.com/userfiles/upload/file/39030682574.pdf
- http://hotstamping.pl/files/file/wutitomegutepep.pdf
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8a130680e7---wofibi.pdf
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf302dd193c---82999982764.pdf
- http://steakclubhn.com/campannas/file/tisolixup.pdf
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d9fc4b9d2f3---dopunosakefatifeza.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=calculus+by+thomas+finney+11th+edition+pdf+free+download
- 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_off0000b819.bin1756f2beeb0011ea91b1da9d2ba47c4427cc86e7ed095767246b50ff29998ef5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB819 | 14980 bytes |
font_01_sfnt_off0000de41.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE41 | 16792 bytes |
font_02_sfnt_off0000f658.bin9bee02f5810ed8dd328413e131b83c5dd83ec89b465804c142d464f0471901db |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF658 | 11408 bytes |
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