MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised CMS upload directories, suggesting a link farm designed to host or redirect to malicious content. While no scripts were explicitly extracted, the presence of numerous external links and the nature of the heuristics point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://www.treehousecare.org/wp-content/plugins/formcraft/file-upload/server/content/files/16078925f39e90---75440789144.pdf
- http://zbraneklapka.cz/ckfinder/userfiles/files/vagakixadepenitox.pdf
- http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16089998b6b91e---92814623133.pdf
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/ua1hmelptne6u4a3h5s2bd2ga0/noxiporolaw.pdf
- https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/98311449170.pdf
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160b5ada3ab965---gewewalevofozorikalol.pdf
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a867d089e44---70724623273.pdf
- https://agenciaboom.com/wp-content/plugins/super-forms/uploads/php/files/fqt0c3pjbd1o4mqh0qqi6du7a3/fusivoxi.pdf
- https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/f03a60d983b0a776372d0fdd07d75347/razorelexavapogarexu.pdf
- http://minipit.com/data/files/74162051070.pdf
- http://vodnik48.ru/content/file/7202971243.pdf
- https://engineeredrepinc.com/wp-content/plugins/super-forms/uploads/php/files/153ded78f1f179f91bdf779b7a8c2e69/76653057553.pdf
- https://locoffice.ru/userfiles/file/47398873744.pdf
- http://nicenpos.com/userData/board/file/95516090734.pdf
- https://gbagencement.fr/uploads/file/zupakezelemureguva.pdf
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1609a981b07eac---wumarinuxesimubozoluw.pdf
- http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/160c0ac36123f6---busawujawenagef.pdf
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071d2ee2b302---lolevatiriraxi.pdf
- https://cdmsig2.com/ckfinder/userfiles/files/tetefovazufo.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/b2f72f9d43508545c4a6c2ed0e667f92/72231930083.pdf
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8c98a39c58---wemosifidiw.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ba9b3e586bd---22028529848.pdf
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/439e709ff5cf8f705f8525fa8553b222/57085575566.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=inside+out+and+back+again+quotes
- 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_off0000c0e1.bin2cd6c54bfd649a620acc44c5206fe58d68e51275c88cf13ea074ce17e165b92b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0E1 | 10828 bytes |
font_01_sfnt_off0000d97b.binb5b522aa2cea1adc1029d1133afff4b7d11c7052be6ca26ce3cd16bf647e39bf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD97B | 17024 bytes |
font_02_sfnt_off000104e1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104E1 | 16792 bytes |
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