MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains a high number of links pointing to compromised WordPress upload directories, indicating it functions as a link farm. These links likely lead to further malicious content or phishing attempts. The ML classifier and ClamAV detection strongly suggest malicious intent, with the latter identifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/ptb6k783155s67jc7bttoiq60r/40275381593.pdf
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6f920ec788---pavela.pdf
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccfd2d711b---maresetagep.pdf
- https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/52d69b540fe72da7e4303b9b96e569eb/wupefutupejodalofigenudu.pdf
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/1b8808475b34e2a53e9abccdb5adf1a3/25739901106.pdf
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/dgu6jvtov3d994h30sq8pmf0kt/64980627221.pdf
- https://hogies.com/includes/template/uploads/file/zijajinedajasudepex.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/575e43b4ef2808c289be1978cfe1d220/82361484900.pdf
- https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/du1mk2su1o6q6mltq44p4apjeq/zasaziwefiguxo.pdf
- http://bocghebinhduong.com/media/ftp/file/xevifurugibutatawali.pdf
- http://www.assignproject.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072321eb5cac---66626490279.pdf
- http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/fcce62d316e02265e3b98c34b18aa2ca/pafiw.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606d578b2155a---tipus.pdf
- https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/594a0f9ad3c4f5d05ae81cd61ccd5488/fufeb.pdf
- http://twxcd.com/img-aim/files/xogeledi.pdf
- http://whkmradio.com/userfiles/file/87176531837.pdf
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/9fb2cc45c0ad5a265084ef4af8ad6d36/sokikonogafemukikumuko.pdf
- https://mrmobilewebsite.agency/wp-content/plugins/super-forms/uploads/php/files/85ac52d9499161388a2240b36739e169/21150382708.pdf
- http://hollandunitedreunion.com/clients/5/52/52f3fdf721cdccceb566e47094f1d9de/File/wikinosoro.pdf
- http://teraval.cz/res/file/rajawurepuvenarigomej.pdf
- http://matras-devison.com/upload/file/nuroxevokoj.pdf
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/cacebe52c4b8ce60df36d930cc3fd3d2/sufulawapolukubivugix.pdf
- http://shreejians.com/userfiles/file/sosazilojevidotekepobi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=b+words+to+describe+someone+you+love
- 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_off0000ee18.bin83407b21d3d9ae40c39b0bd71aa7c428bd9db0a18311c50d32437d58cbf79e99 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE18 | 16936 bytes |
font_01_sfnt_off00011a17.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A17 | 16792 bytes |
font_02_sfnt_off0001322e.bin0761dab15a0874fe987b4fdd8e8520228491f7e8c241ed592e6e6a0fa0a2aa3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1322E | 10928 bytes |
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