MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous external links, many pointing to compromised WordPress uploads or disposable domains, as indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery through these links. No scripts were extracted, and the document body was unreadable.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
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://krisoc.ru/uplcv?utm_term=android+8.0+emulator+for+pc PDF link annotation
- http://naturallabs.de/userfiles/file/fuzedemopo.pdfIn PDF document text
- http://testplanet.nl/uploads/files/gipegojufijoz.pdfIn PDF document text
- https://limsurempat.com/contents/files/xizimefiwefobonekavala.pdfIn PDF document text
- http://ciaomamma.hu/editor_up/gakuboketilezerivujami.pdfIn PDF document text
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/89852d8a7808096dd712e11cdd62fab2/20147358970.pdfIn PDF document text
- http://asorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/1039416121.pdfIn PDF document text
- http://batistar.fr/userfiles/file/xudofe.pdfIn PDF document text
- http://www.szphotar.com/admin/img/files/48365953708.pdfIn PDF document text
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/161375c09b2a2c---8612077521.pdfIn PDF document text
- http://www.la-rocca.pl/app/webroot/files/files/37912746218.pdfIn PDF document text
- http://amy-tsai.com/images_express/userfiles/files/79920529546.pdfIn PDF document text
- http://galluccifaibano.it/userfiles/file/16293368646.pdfIn PDF document text
- http://musthighschool.mn/ckfinder/userfiles/files/ganirosovejevu.pdfIn PDF document text
- http://synerfreight.com/syner_upload/images/files/17279630498.pdfIn PDF document text
- http://ngor2-3.com/file_media/file_image/file/juvabifibiruw.pdfIn PDF document text
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/645ee3613bc5b9e64422898d342dab70/dipixodokemizovubununapo.pdfIn PDF document text
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fc76d60bb5---66357155158.pdfIn PDF document text
- http://pngroup.pl/ckfinder/userfiles/files/wejamupap.pdfIn PDF document text
- http://www.bongbansaigon.com/uploads/files/fazosozu.pdfIn PDF document text
- http://sdds.be/userfiles/file/wubusedudakij.pdfIn PDF document text
- http://www.cda.org.hk/ckfinder/userfiles/files/58622662938.pdfIn PDF document text
- https://icoachyou.biz/images/ckeditor/files/tituzutijuzagibobepe.pdfIn PDF document text
- https://shen-su.eu/gfx/userfiles/files/povutitogegabefoworagureg.pdfIn PDF document text
- https://lolakarimova.uz/ckfinder/userfiles/files/73466183023.pdfIn PDF document text
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614d685b497a2---91454136898.pdfIn PDF document text
- 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_off0000b052.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB052 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c869.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC869 | 11092 bytes |
SHA-256: c5a61b9e860112c60f8fd8bfbaa6564eb2c4bb65837d9ee157712c45d5f9b3e2 |
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font_02_sfnt_off0000e241.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE241 | 14756 bytes |
SHA-256: 5989b984a7d4893fe1d36a87ac9d08b915712d46367c8f546e8364a20d13a71e |
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