MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed for malicious redirection. ClamAV and ML classifiers strongly indicate malicious content, likely a phishing or malware distribution lure. The presence of multiple external URIs and link farms suggests an attempt to direct users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://prestopc.it/upload/file/jolijebepunekuvegesoz.pdf
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087fb390a2c1---nobapep.pdf
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607fccd7279a0---muwezedamomodoletuvoro.pdf
- https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/49ac81a88bd6519f7b2a1ffb85ea259b/kaluranizekelozesuxadinuj.pdf
- https://dimensionshoppe.com/alpha/ckfinder/userfiles/files/88052066179.pdf
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16092c4350de87---narakuwubokidibu.pdf
- https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086f878d891f---77406430125.pdf
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/ee69106a52047558296faa0ec450bcd9/91511491203.pdf
- http://livelyway.com/ckfinder/userfiles/files/284306176.pdf
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/b6908e35b86faa200b52a2c5aba53724/nikexumelowakixaxegunu.pdf
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/160913ddd69aa3---67478543530.pdf
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/c1ae44f5184e486fa03c40de6cb52a3b/pifeba.pdf
- http://sendedianqi.com/upload_fck/file/2021-6-23/20210623040805721463.pdf
- https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/55050145909.pdf
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4ee64363b2---nazomamizerotoxiwi.pdf
- http://sahamit.net/userfiles/file/dutoloruxexoz.pdf
- http://polymer-optix.de/userfiles/file/8252445894.pdf
- http://weymouthhighschoolclassof62.com/clients/5/50/50fe23896e84432c97ff20d680692bb9/File/13292542725.pdf
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607a3965516c5---78294534356.pdf
- https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/58eqbfu226liph70nf6qk4lb01/pedaxikabefalalo.pdf
- http://aiswaryamatrimonials.com/fck_uploads/file/botezamerizosuwunubulujo.pdf
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c6d2fd7b28---11647231507.pdf
- https://agermag.ro/mm/file/2789961580.pdf
- http://pizzeria-millemiglia.de/app/webroot/img/editor/file/79684082641.pdf
- https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/997cd62ccf3fde8a8637a4dc25781608/40554776287.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=eric%27s+building+supply
- 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_off0000c636.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC636 | 16792 bytes |
font_01_sfnt_off0000de4d.binb8ddd0ce1658d1fd5b6127c3b8fdd9b215603ebc9cb56ad7d0729085df32fc11 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE4D | 10548 bytes |
font_02_sfnt_off0000f5f6.binac65d5c28e9bac755b3ec741bd043ebfb024f7606f5bb9c6775692b528fab6a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5F6 | 16156 bytes |
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