MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised WordPress installations, suggesting it functions as a link farm for phishing or malware distribution. The document body is heavily obfuscated and unreadable, but the heuristic firings point to a phishing or malware delivery scheme disguised as a utility.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/06c21c28d829a07a9bee3b5e64a3822c/35758173679.pdf
- https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/27e3acbb83090fff2e7dae10d8ffd23f/85271336427.pdf
- http://aaaexpressac.com/userfiles/file/zeluvisuk.pdf
- http://somersetcountybar.org/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/85272894871.pdf
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607421eab37d8---70422665699.pdf
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608e0f5b686f2---mejatosadaluwunekade.pdf
- http://luatsubienhoa.com/upload/ck/files/japijubamofovej.pdf
- http://micronforgacsolo.hu/UserFiles/file/93005164046.pdf
- http://haus-st-otmar.ch/userfiles/files/gibiti.pdf
- http://emons-verlag.net/testarea/cwsCMSlight/media/files/32288535862.pdf
- http://lezeckastenakosice.sk/upload/files/dexamevomewod.pdf
- https://questyme.ca/userfiles/file/43251168510.pdf
- http://china-hold.com/UploadFile/file/20210517210127634.pdf
- http://gloria-eurex.com/images/blog/file/pilefodatusabe.pdf
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/n9e4au0ld06tv0n1k9tvgjheeu/57717922091.pdf
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090feb04deef---14704828828.pdf
- http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16080fabbeba85---dibejipupufuwinaberafago.pdf
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c13ad14cad4---gakopisekobos.pdf
- http://www.umadai.com/ckfinder/userfiles/files/nevotuxafekojetijumejovob.pdf
- http://koslita.eu/ckfinder/userfiles/files/lemoxokilivek.pdf
- https://www.movingwithmagna.com/wp-content/plugins/super-forms/uploads/php/files/ca8b95571c8b507df531b03522f7fcc6/folusuxipujekepubipeku.pdf
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9ad6b40f79---98990584470.pdf
- http://www.rpv-drachten.nl/files/file/8979399596.pdf
- http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c690fb16e33---49480625510.pdf
- http://langeline.com/ckeditor/upload/files/mobarigaxezilaze.pdf
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1611e568be0155---zibavetenafixowon.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=split+pdf+pages+free+download
- 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_off0000e4e3.bin5cf6c24972ae2a458047268c1b0a84a65e86eaeb64bacbbcc4ef13dda6a01016 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4E3 | 17212 bytes |
font_01_sfnt_off000111a7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111A7 | 16792 bytes |
font_02_sfnt_off000129be.bin40e9cc4717809d8410b2e2fadcb11dc9027b85ecb4932b6a36d58619c20fddfd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129BE | 10832 bytes |
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