MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
Heuristics 7
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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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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 http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f8b32165894---9806004344.pdf In PDF document text
- http://ainut.fi/userfiles/file/90723706118.pdfIn PDF document text
- http://wernitznigg.at/files/51380510188.pdfIn PDF document text
- https://torbay.ru/images/uploads/file/76426175079.pdfIn PDF document text
- https://sitycare.com/FCK-UserFiles/files/zozavujaga.pdfIn PDF document text
- http://csc-021.com/userfiles/file/20210607200908_fvs6so.pdfIn PDF document text
- https://bestcaps99.com/ckfinder/userfiles/files/dirumetefunisunuzasab.pdfIn PDF document text
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a65103c9e4d---22898810282.pdfIn PDF document text
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/c487ff39d280a8794484e100c4628634/relumofuw.pdfIn PDF document text
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/9d9ebdbc3b329d417e00e771b6591bb1/fizijotesitale.pdfIn PDF document text
- https://camping-du-lac-dijon.com/userfiles/fichiers/bapitufobi.pdfIn PDF document text
- https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/160756fae17072---48335305913.pdfIn PDF document text
- http://sun-green.nl/ckfinder/userfiles/files/pobufetagudufegozuvaname.pdfIn PDF document text
- http://pointerboards.com/uploads/admin/files/bugesareb.pdfIn PDF document text
- https://soechi.net/userfiles/file/19553701115.pdfIn PDF document text
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/4qpgba8m9dg7m87f7e1gbpbubn/bapeduwige.pdfIn PDF document text
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/06b5f84d071b6f2f54b7c22d94f00dae/xonodiwa.pdfIn PDF document text
- https://thetitangroup.ca/wp-content/plugins/super-forms/uploads/php/files/d158dfa374d90d7c05f59b543392e68c/kofovekosufuwivox.pdfIn PDF document text
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161246192d172c---1479610101.pdfIn PDF document text
- http://purpledoorchurch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607806056301b---26499116358.pdfIn PDF document text
- https://eletmodguru.hu/files/files/kuvewubuxegatewerapese.pdfIn PDF document text
- https://hbphoto.ca/resimler/files/15198414811.pdfIn PDF document text
- http://samurairamenbar.com/uploads/files/sobuzowapupegimoni.pdfIn PDF document text
- https://humble-brag.com/wp-content/plugins/super-forms/uploads/php/files/43cmp3m40v1c6jmmp18cpqb92r/bazoroxebobav.pdfIn PDF document text
- http://al-bandak.com/userfiles/file/gubivuvita.pdfIn PDF document text
- https://www.blondel-bois.fr/ckfinder/userfiles/files/72417387323.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=time+management+worksheets+for+adults+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b3f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3F7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cc09.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC09 | 14020 bytes |
SHA-256: 8622fedd881e890ebf4067e72fc09e56dea909317c8bd439ae29a213c9e204c3 |
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font_02_sfnt_off0000ee7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE7F | 11184 bytes |
SHA-256: 1bafb2adf9665c577e8669df0af2057034fe34ffa53bdfa69f6dbf8a479c1abb |
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