MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users. The ML classifier also strongly indicated maliciousness. The primary attack pattern appears to be luring users to external, potentially malicious, URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://mnogonomerov.ru/uploads/file/78374289777.pdf
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/c8736643842a3f51750ff0867a6e2658/52881935623.pdf
- http://wtmongolia.com/materials/file/vutotubumonibirurerabaf.pdf
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1608ab9e249427---xaxarivomudufikofuf.pdf
- https://ayurvedaemart.com/uploads/file/wolenarodudotagut.pdf
- http://ibtaker.ps/userfiles/file/61282388268.pdf
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/4c376cc6feb8b6352e21f2a6bb6ed496/kiwudopaxen.pdf
- https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/00775b26bbb762f94165d689431fa2ff/tonigedavadef.pdf
- https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/1028414e7888aa97adc5ea8f79125d8b/lupezup.pdf
- http://ajivikafinance.com/userfiles/file/13425556214.pdf
- http://mevlanaasm.com/resimler/files/81263144676.pdf
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5ec44867eb---zonobalupeg.pdf
- http://cedule-plachty.cz/files/file/50135375657.pdf
- http://challendor.com/fckeditor/upload/file/76350809906.pdf
- https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/82abef1ace58d7068d5ed2595d8dcc57/milox.pdf
- http://azizolace.cz/images/file/54095653333.pdf
- http://wingprocess.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wonovuruw.pdf
- http://alacarte-grafik.de/userfiles/file/45980995524.pdf
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/q7ub73qko9fg8ng8gi0scscet8/vipunuwomibememotarapegu.pdf
- http://www.clc-engineering.com/siteuploads/editorimg/file/38835574632.pdf
- https://autopratichesas.it/file/44013685552.pdf
- http://xn----gtbercbfedtm3b.xn--p1ai/admin/ckfinder/userfiles/files/92004677257.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=absent+seizures+may+last+for+a+few+minutes
- http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/1c1b93f4c7f804c30ab99a1ef0088b0b/kurujubalaxaduxenowav.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_off0000f226.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF226 | 16792 bytes |
font_01_sfnt_off00010a38.bin17842107b78e3f4185a0a289af28180cdadd2eda2e7e1725a203bdae8d9b26af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A38 | 17000 bytes |
font_02_sfnt_off000136e7.bin83db6c23b6f35a547eae7983b2693083e180d95b03b83e6f301f2a9fc526cd7a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136E7 | 10856 bytes |
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