MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, pointing to numerous compromised WordPress sites hosting further PDF files. This suggests a phishing or malware distribution campaign leveraging these compromised hosts.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608480a1eb955---4812251190.pdf
- https://youstore21.com/wp-content/plugins/super-forms/uploads/php/files/183b9bce276209cd1c60d5c62b9dd26f/pobafelefuloxiroxaliwa.pdf
- http://faradbox.pl/files/file/71790046016.pdf
- http://tanphatinst.com/vietkiendo/upload/file/mifamalazuwi.pdf
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ba4e6245815---wufitebimekimowozoki.pdf
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160f3e845057e9---2023987857.pdf
- https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/c3c42e67d474a4eef0aa925e8032216d/92594348775.pdf
- http://zamokugrofa.sk/admin/fckeditor/file/gimarele.pdf
- http://akkoryazilim.com/userfiles/file/kopemefum.pdf
- https://creativenursery.net/home/creative/public_html/ckfinder/userfiles/files/wusubimijuxuloso.pdf
- http://veitali.com/upload/files/febarerir.pdf
- http://ailizia.com/userfiles/65348096463.pdf
- http://yogo110.com/userfiles/file/zofemonilitubifalegamoxog.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160751e63eca82---95905017833.pdf
- https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/6e41e9f2c5bfac10ff50e8a22b32edc4/74026806788.pdf
- https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/da9b9fe37d8195abfe6582421d4273bf/wejodovigufimiwel.pdf
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa8447dfec---44894723391.pdf
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/42c417f52dc10fa8700a96747d860e2b/sejeworibo.pdf
- http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075f6db70553---dipemowarureri.pdf
- https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/424efef4b4e408b4e9d58c1ba94bc868/sasuzagilujepejavo.pdf
- http://iqlacpro.vn/emotive/upload/files/wodonironamali.pdf
- https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607dd1176a82d---54008452473.pdf
- http://valaptop.com/ImagesVA/file/jitakuxeporesuwufawuvor.pdf
- http://wamer.org/userfiles/file/juxojijetawimadevijupa.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=applause+for+you
- 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_off0000d7d5.bin8f9ea729ff0a58d52b785913e72bbc5f38a8aac7987d3edbafee5b1cc4b6e951 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7D5 | 10252 bytes |
font_01_sfnt_off0000ef1c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF1C | 16792 bytes |
font_02_sfnt_off0001072e.bind4bd5aee1ee248aaf258ad6f15d29ef407472c70fefeaad0994245cbb5b174b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1072E | 17172 bytes |
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