MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous links pointing to compromised CMS upload directories and disposable hosting, suggesting a link farm or SEO poisoning attack. The primary purpose appears to be redirecting users to potentially malicious websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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 http://softwarefactory.nl/images/file/32948374226.pdf
- https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/a98a5b4bed79203f0568c00076f7c6bd/26453006825.pdf
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/q17hgshhtci3r6oo3tuv4dmv1e/41440435053.pdf
- https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/b3857b70e92b18e4917f2abf3ac695c2/47025351795.pdf
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160aca2265541f---refotajufeba.pdf
- http://yossy.biz/userfiles/file/bitirizibirotuxamimowani.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160918fdc75950---ligedonivubujinamaguwij.pdf
- http://forter.vn/hinhanh/file/musemujilufebibaxep.pdf
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/3b7b19c88270cfabf8edd30216da3a6d/bijofuv.pdf
- http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1608469300eecb---felumumokar.pdf
- https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/a5f5f94eb336e304d23f1369834b55e2/46580571223.pdf
- https://bamfieldrental.com/userfiles/file/72760166782.pdf
- http://project-st.ru/userfiles/file/ruxinugiwarotinivexo.pdf
- http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160af0880bb5c6---29690082377.pdf
- http://taeguektour.com/FileData/ckfinder/files/20210529_DA7EB64C7EBDDAE0.pdf
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16073d239f3b87---91418295819.pdf
- https://regeneracion-capilar.com/wp-content/plugins/super-forms/uploads/php/files/e5fdc6ea41a2a07623c0abc425623c4a/85417688596.pdf
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a2915f2a6c6---xutopabesofaluvez.pdf
- http://anpo.vn/upload/files/10960444383.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0f8b3ce39e---34872473651.pdf
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160ba063d50f30---37122286165.pdf
- http://thunderstar.cn/userfiles/file/20210507073817426585077.pdf
- http://www.urbanwaterways.info/files/romamubeti.pdf
- https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/hqpk9ouj4proeem77ud7pgfqmc/bazimunefinafimibuxivod.pdf
- https://movesforfree.com/wp-content/plugins/super-forms/uploads/php/files/b35dfeqbjba46qafnkqvhddpt5/lowigu.pdf
- http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/f351d18a2ce72a3cebfabbd0494c61b0/nipodo.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=database+project+proposal+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_off0000f33e.binfbbc416861fce23da61552480ba0527e2872892e27bfe8dafc95d476e382eefb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF33E | 10688 bytes |
font_01_sfnt_off00010bc1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BC1 | 16792 bytes |
font_02_sfnt_off000123d3.bin9fe91f3555151ea97c6f89a0a88d07d756fc39aa7264a0ef883378a7de062a00 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123D3 | 17992 bytes |
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