MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains numerous links pointing to compromised websites and disposable hosting, suggesting a phishing or malware distribution campaign. The presence of external URI links and a link farm on compromised CMS uploads indicates an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
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://philabc.ru/uplcv?utm_term=why+do+living+organisms+reproduce
- http://www.asslar.de/downloads/fokakisibekapegigel.pdf
- http://lbhs1965.com/clients/6/6b/6bdd8f708684a1f547efbf97e1630fe5/File/ruwixela.pdf
- https://www.duffylighting.com/wp-content/plugins/super-forms/uploads/php/files/d8dbcb0ffb24d5fa70eeaaf97437c7c8/kixepuxezubijerak.pdf
- http://duda-tech.pl/dudatech/upload/file/37411428304.pdf
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160849379d088d---2374755528.pdf
- https://binarbaidservices.com/public_html/userfiles/file/diparotax.pdf
- https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160858bd742a22---dosisufovi.pdf
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/160c8dc5787e2d---71745091333.pdf
- https://bluebeakbranding.com/wp-content/plugins/super-forms/uploads/php/files/4f06787a6a8201949d02909dbff77163/xerixidunefisuwetoku.pdf
- https://cald-lighting.com/wp-content/plugins/super-forms/uploads/php/files/e5c53a3d1c6a522376162499bb461037/7708501058.pdf
- https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/2c8585964bab5545d0534e07e6ba188b/gopebaza.pdf
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16073d8485d0d9---fawomakifawuxutemukuxob.pdf
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/380f503582392bf5c31ea029dffc53b7/rolifiraga.pdf
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16096b9134d4aa---77826063011.pdf
- https://micsys.in/userfiles/file/kuruwejurafaxidewadupev.pdf
- http://primaria-ciocirlia.ro/media/file/kunebavexepix.pdf
- https://angkortaxiservice.com/userfiles/file/lajevafesawarifozubagu.pdf
- https://bititechnika.com/uploads/file/julabanopa.pdf
- http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085c92cc1e61---ranibog.pdf
- http://adria-ex.com/images/blog//file/6444067291.pdf
- http://meble-tk.pl/userfiles/file/38037624529.pdf
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b4b25b50255---16713218052.pdf
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1609f78f89718a---64392125597.pdf
- http://ncdesign.it/userfiles/files/6960011744.pdf
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a8b1b263695---64492169421.pdf
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b37fc635ce7---nozupaxuseloriri.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f27e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF27E | 16792 bytes |
font_01_sfnt_off00010a95.bin4aca099483c9d2bbf7e4601c7fb94a8c13af7632ccd4688312169330cd332137 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A95 | 11136 bytes |
font_02_sfnt_off0001242b.bindd142ad0a7a548e11f34ba5ddf701733f245dda9013140879d7f1fce150bf458 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1242B | 16060 bytes |
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