MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous URLs that point to compromised WordPress sites. These links are likely intended to lure users to phishing pages or download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 https://synerhu.ru/uplcv?utm_term=the+thalidomide+tragedy
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607f0632ab911---44103314825.pdf
- http://jirehenl.com/userfiles/file/23235613293.pdf
- https://opuntia.eu/wp-content/plugins/super-forms/uploads/php/files/b50a98ca38dc866fad2edd8d9a134020/gikisavike.pdf
- http://shengnabei.com/uploadfile/file///2021060714172592.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607df0ac6dffc---94843096720.pdf
- https://nhachoxebus.com/upload/fck/file/87172518083.pdf
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a6ca12441be---40575591751.pdf
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16075643781a4e---geredutajiwif.pdf
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1609033eb35456---neneligoxo.pdf
- http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/e0fafeb4947a7ee834e2124f5c9b0ee4/setelugutubelutasi.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c944fd2974c---zixijilimoba.pdf
- https://toromecanicorodeo.com/files/pagoponaligakigamor.pdf
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160746b6e47297---kedabuledodofejo.pdf
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/0l6qgvtdu2artnu1giet990uuu/xujepalumosutufakuk.pdf
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/16076ac04816d5---dalaxafunixilep.pdf
- http://hurtmar.pl/Upload/file/rabatizepegemex.pdf
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/5gtcn559536a7ug3puh8fccr67/89156836388.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/1jburrd80rqm8jgbq29klvfrc1/42357568807.pdf
- https://sluganarodu.org/userfiles/files/98876185163.pdf
- https://mangonebike.com/uploads/file/katekerekiranevoworalage.pdf
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/5f4fd91701aec0e4363618c6d4d34034/91453592612.pdf
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/e79f8c8fbb807ee9bebe8903380a083c/43536160216.pdf
- https://humble-brag.com/wp-content/plugins/super-forms/uploads/php/files/l620pdt86h11i4oqp3tdsrs05i/64825349247.pdf
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/dkv023672jbre4b4ncb7imlk60/wusamukudogixopetekip.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_off0000ed62.binacc46e94b30def47f53d9090a3b5445e331ffa67aaff25a7201e9855a8d9cf93 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED62 | 10500 bytes |
font_01_sfnt_off0001050a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1050A | 16792 bytes |
font_02_sfnt_off00011d1c.bin4e9c5c528d184846bbbc2beba639a4fb5e9004213d300dfc5f89672abd9a0acf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D1C | 16952 bytes |
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