MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to disposable hosting or compromised CMS upload storage, suggesting a link farm used for phishing or malware distribution. The presence of 'teacher's guide' in a URL parameter further supports a lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://zenkenmoshi.info/images/files/file/nepodofajevedebuzufev.pdf In PDF document text
- http://alfavs.eu/userfiles/file/sorirekodajisi.pdfIn PDF document text
- http://ibiforstarlight.org/clients/3/3c/3cfcca4e360ca8807b7dd7d6e7cbeae0/File/kewulasupisezezubiwazomoz.pdfIn PDF document text
- https://ovalpolycoats.com/media/67157335227.pdfIn PDF document text
- http://slsnn.ru/content/file/21076395382.pdfIn PDF document text
- http://mariekevanvlierden.nl/survey/userfiles/files/minoxikajavokemuvere.pdfIn PDF document text
- http://issaproject.com/app/views/panel/ckfinder/userfiles/files/97433545370.pdfIn PDF document text
- https://felix-schulze.biz/wp-content/plugins/super-forms/uploads/php/files/oqdft4h181dr10qv3l8ijfclvk/62466840703.pdfIn PDF document text
- https://arichaindia.com/userfiles/file/48136111483.pdfIn PDF document text
- https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/f176eff8948e11ad07331199cb84dcdc/30930043438.pdfIn PDF document text
- https://fotokeramika.bg/userfiles/file/32817329095.pdfIn PDF document text
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/418c746509baf8f8566670fc848ba793/31232222346.pdfIn PDF document text
- http://aptchasers.com/FCKeditor/userfiles/file/60801498877.pdfIn PDF document text
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/6dddad7572816d7af38498d269360d93/golum.pdfIn PDF document text
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d9a85b3161---judefebo.pdfIn PDF document text
- http://accessprecision.com/userfiles/file/wumobutujumame.pdfIn PDF document text
- https://alsultantrading.ae/userfiles/files/65329793462.pdfIn PDF document text
- https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/1612d4ef628d62---mujubapebutefafi.pdfIn PDF document text
- https://xyoaa.org/sites/default/files/files/22687577466.pdfIn PDF document text
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/3krb4gfifb5ipoi9nl0rqqrn3b/vufipojebogotapobugum.pdfIn PDF document text
- http://xn----ftbkdcamitb5h.xn--p1acf/files/fck/file/51456364175.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607b63558c6e3---wevugepisugowosipazax.pdfIn PDF document text
- http://zetrade.cz/userfiles/file/miralowogufalovozo.pdfIn PDF document text
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/9614abef445628eba610af71aa485307/nanix.pdfIn PDF document text
- http://king-pro.com/userfiles/files/47959854350.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=teacher%27s+guide+in+english+grade+9+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_off0000d1da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1DA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e9f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9F1 | 10944 bytes |
SHA-256: 17cef3b255e8f66ca18447894bfad0ccfb8ec5bc1d02b8e4c8ff0281c26aafaf |
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font_02_sfnt_off00010309.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10309 | 17820 bytes |
SHA-256: 5a01d30edc6870476c963006ac2cec37ef5f0c659d8669e10ffde03d7a1fedb6 |
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