MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document detected as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting it functions as a link farm to distribute malicious content or conduct phishing. The presence of external URI heuristics and link farm indicators further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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://garglob.ru/uplcv?utm_term=how+to+explain+confidence+intervals
- http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/106796b475154f11106c41369e560b54/nisixebiterusekuz.pdf
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160beb7caef88d---20493488157.pdf
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/63833ded3f2f4192b31dbb42bb09027d/84997675300.pdf
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/7ao9dpq9oooua7svas0avvqeqn/53281113398.pdf
- http://web68s.com/upload/files/28599299236.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607411ead2f9a---kasemepolu.pdf
- https://planet-for-events.de/userfiles/file/rikudise.pdf
- http://arc-en-cielproduce.com/ckfinder/userfiles/files/40846970220.pdf
- http://kangs78.com/clients/66216/File/legigifusenuzefujerudeke.pdf
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa1a42ce6bc---12951365580.pdf
- https://www.servicioscalibrados.com/wp-content/plugins/super-forms/uploads/php/files/18395a194d87518053886657d76c5a2e/vuguzex.pdf
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b20aeeb4d2---paguzexoduxemujetok.pdf
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fade2c63bc---rawesajisoladifitoj.pdf
- https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/n0h106dtfsoh8jh05k7a064227/87615897285.pdf
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16084870f2897d---54262780242.pdf
- http://jorkurojus.com/userfiles/file/14929849532.pdf
- http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/89b250eb6a7275f68a59d3bc0e7dc600/29294266490.pdf
- http://apexhealthnutrition.com/newerac2c/userfiles/file/39084432627.pdf
- https://careersourceokaloosawalton.com/files/public/nolemunefijazowuralupo.pdf
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fe0b2163b3---junavudifuxavikanigagaxul.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_off000160a8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x160A8 | 16792 bytes |
font_01_sfnt_off000178ba.bin2b6c739d7c9a9aa25ed742ff20cf01fa1283c27db18a9e84ed7d49058b94373c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x178BA | 19108 bytes |
font_02_sfnt_off0001abe4.bine8e4c276b77d485912eef3969e200d671f05cb74a01c48542ec551acb3138688 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1ABE4 | 10856 bytes |
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