MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised WordPress sites and disposable hosting, indicating a link farm designed to redirect users. ClamAV and an ML classifier flagged this file as malicious, specifically as a phishing trojan. The presence of multiple external URIs and the nature of the links suggest an attempt to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://www.latentoac.com/portal/wp-content/plugins/super-forms/uploads/php/files/r5b0ik4ti4msof7tj69jar20se/73975844739.pdf
- https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/59cfff4b71ee23e7e403b2989ff9f929/suwasevekile.pdf
- http://hhs63.org/clients/8/88/88ec95b665b56da82b1de85f097fba10/File/60681051113.pdf
- http://tubietelbar.hu/uploadfile/jolew.pdf
- http://parentini.it/userfiles/files/wakuzolew.pdf
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/oasa7fmk7jo89l6prf8c85b7n0/tilomuvutivub.pdf
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/um9mjegikme6co86jksinsihg9/putedexifaxivuresokazebim.pdf
- http://rittenhousereunion.com/clients/a/ad/ad7d26974070b67854a29702aed78614/File/nitigoxepepa.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a97dea9d250---12531273200.pdf
- https://lea-inc.com/wp-content/plugins/super-forms/uploads/php/files/4b4c98cef60cc52fbbd6e09d282c735e/wiferemujusagijesewagediw.pdf
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607aaeec820e3---pubejizuwidufizadatomaz.pdf
- http://vanharteyoga.nl/uploads/files/juzagixujebabazuz.pdf
- http://mikailang.net/userfiles/file/20210702111351_1028268258.pdf
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/d36e4974c49bf9b6fcda13e68443851d/3020100439.pdf
- http://quaint-house.com/images/blog//file/gixixuvodagisagojopovuwa.pdf
- http://straub-online.ch/userfiles/files/37412305289.pdf
- http://aivieksteslaivas.lv/userfiles/file/15223847136.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083db045ba34---minitejigexadikoje.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608befd3b8316---tuzezuvi.pdf
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160ca72e808270---vupasogosemeda.pdf
- http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16084d99de51ac---56130529189.pdf
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afdaf9d642c---76216170925.pdf
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ab07809fbe1---nexesekagojekefisamawe.pdf
- http://ibconsulting.it/userfiles/files/kupon.pdf
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1609a4505911db---14258468679.pdf
- http://a1-automotivegroup.com/upload/files/febubelati.pdf
- http://dienmattroigiasi.com/uploads/files/vobupodas.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=cookie+butter+cheesecake
- 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_off0000f0ec.binff3f04ba95766f4f4866be825257b91dedb8b885faff156c528025be3538fc70 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0EC | 17024 bytes |
font_01_sfnt_off00011d69.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D69 | 16792 bytes |
font_02_sfnt_off00013580.bin86f24d502c32ee193d644b6054e7c93e6119e8f2a3b36b5cd5aadffcea11208b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13580 | 10540 bytes |
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