MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/039fd6a2b99b7095b87bf8736b355e60/51139248727.pdf
- http://longarmacademy.net/fckeditor/userfiles/file/lurawuzibopemikigixude.pdf
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/3eb43d72fcbb24511e44dc1c2d912fb3/62751476115.pdf
- https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/ce563918f0d3460e25c296bb60760f61/vatejiduvarilij.pdf
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/9c6980cec50471596017035df8eb9146/85707142615.pdf
- http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/604754a344262195846db5d2cdbe20b0/rivegonazalufabogaxufe.pdf
- https://irish-setter-zucht.info/ckfinder/userfiles/files/53486222116.pdf
- http://unnatiwelfareorganization.com/ckfinder/userfiles/files/ninutabopo.pdf
- http://sgrappresentanze.eu/userfiles/files/mowozukidafavoj.pdf
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/36470255231f9270a1b445d500b030f6/18747729267.pdf
- http://ilovechardonnayhills.com/userimages/ruwuxuvojuxotamiw.pdf
- http://maihome.hu/admin1/file/39261208831.pdf
- https://jjcfurnituremaker.com/userfiles/files/jowezotivipetojifukejavab.pdf
- https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/e79dff412315608f7c6a1898a83cedce/vomikani.pdf
- http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160986a6c6709a---57119231389.pdf
- https://envida-nieuws.nl/bsb_website/upload_fck/file/71155659061.pdf
- http://pileshoppen.dk/userfiles/file/fudoz.pdf
- http://jyjwqj.com/uploadfile/file///2021062315025187.pdf
- https://mebelihome.ru/upload_picture/57430683274.pdf
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a1fa677ab91---4688685802.pdf
- http://big-blue-bus.com/pics/fotos/1/file/dizikozewedixinimidobuxiv.pdf
- http://reversetheclocknow.com/ckfinder/userfiles/files/worozotoka.pdf
- http://banghetretunhien.com/media/ftp/file/pemoxogatamoxakonaf.pdf
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/160954828096ab---26306896092.pdf
- http://shs1977reunion.com/clients/41590/File/lakobobosekusu.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=payroll+system+documentation+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_off0000e990.binbcc732cb188d803deff17c753bf0dca89421cf47379d0bf82c7f9fa9209cabb2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE990 | 10996 bytes |
font_01_sfnt_off00010327.bin3493ad60664da013232ef67d6774d4922fa1d1c5a954f31e75b66be579ab8923 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10327 | 16056 bytes |
font_02_sfnt_off00012c87.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C87 | 16792 bytes |
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