MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for executing malicious code. The heuristic firings indicate the PDF acts as a link farm, pointing to numerous URLs hosted on potentially compromised websites, likely to obscure the true destination of a payload. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://montagnobozzone.it/userfiles/files/31811158180.pdf
- http://forter.vn/hinhanh/file/96572389043.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/bde5dc4a73e6e7e44040175653564b5b/vasudawefu.pdf
- http://rowsontw.com/shopadmin/upload/files/mifig.pdf
- http://esistore.lu/userfiles/file/wutetilubikezexamezibamaf.pdf
- https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/1fk5iebkj4t9gts0r8o8qnt3hm/wivebafibezitabe.pdf
- http://fitviewer.biz/files/file/41439420385.pdf
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/4db9123a15b48bde94efb2e55a1b9c8e/51426723114.pdf
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be5025a64c0---51850669182.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c78f2297823302dac65296cdefc9b73f/suxuvunomuruvurevareva.pdf
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abd7921d07b---javalikolavi.pdf
- http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/uh65ct0p8dmo17ls3ivkc7t6s0/68360482836.pdf
- https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/094c33f2a0eac7a1899a088defd90a86/5334629639.pdf
- http://signaturecruise.com/js/ckfinder/userfiles/files/98558079729.pdf
- https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/626a0b0132b1dadbeb97c02dfa92614e/21596921092.pdf
- https://hotellemaritime.com/hotel/upload/files/sojotulamibanozolavum.pdf
- http://centrumbiznesurawicz.pl/userfiles/file/37748058324.pdf
- https://ivanamihic.com//files/96646754380.pdf
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/3fee17f29e0f5a1b010ae4ae90472937/40842130712.pdf
- http://jagodkaprzedszkole.pl/userfiles/file/nubezavux.pdf
- http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/daxeri.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=simple+future+tense+will+exercises+pdf
- 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_007_off0001b096.bin1880adef8900f0e5b914ce4461ec994dfe479a6c3f5042dd27f5282d0c39eba7 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x1B096 | 22004 bytes |
font_00_sfnt_off000147ba.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x147BA | 16792 bytes |
font_01_sfnt_off00015fd1.bin1fb7e5d407f3d84ff952f272aa3dbd85914f7c69d9d47f653979b9304d07c41e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15FD1 | 10864 bytes |
font_02_sfnt_off000178e6.bin1b2335cae68fbfa49f562985148e5a06fc9b1b9f76f8918fa05983da3a54baa6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x178E6 | 22872 bytes |
font_04_sfnt_off0001da3d.bin23dc89cf7e20befbb372e80fd2e6640c0c9a393416ab871bb67f95211ade5e81 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1DA3D | 3552 bytes |
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