MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded URLs, many of which point to compromised WordPress sites. This behavior is characteristic of a link farm used to distribute malicious content or conduct phishing attacks. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/e2f9ae7199bfc72b2ae9d3ec9f0bce5c/27125772678.pdf
- http://howsonfamilyreunion.com/clients/5/57/57b8fe7d350e782a16e6afc8bdcd6467/File/76456647420.pdf
- https://cr2tek.com/userfiles/Proj_Name//files/lekebibej.pdf
- http://bagumul.com/file_upload/spaw_upload/file/20210629074621.pdf
- https://audit-advisers.com/userfiles/file/fumiv.pdf
- http://praconsulgroup.ru/pict/file/50570975808.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bc0be20568b---23022202247.pdf
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/e60e4aobree0s63ehj8e46l9hf/zoniziv.pdf
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/014cae639e4bb90e6a0410323be0cffe/51678243207.pdf
- http://atthaya.com/file_media/file_image/file/21786343784.pdf
- https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/1c2845389a9626ad5121b909465561ad/80236871934.pdf
- http://unsersohn.ch/images/file/37063751880.pdf
- http://newfieldclassof1982.com/clients/6/69/69e49ffade321d977af769e13f9f004b/File/voxaxedok.pdf
- https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/bf7d1a985591d7c7a57992dde8481a45/74744376826.pdf
- http://workprohealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/160857646ae4e6---tedevuguridijuweni.pdf
- http://wabasnb.com/files/fckeditor/file/88978306760e63068d49ed.pdf
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6e70037606---wujakesorubuzexif.pdf
- http://brandiassociati.it/userfiles/file/pevadujikuropawu.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/79e790428ffb364e5aab6a245444aad1/firened.pdf
- http://www.celso.org/download/likobiki.pdf
- https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/8ebdcfa3fd59ab4bd9a92615868193fd/vejufilexewobolof.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ada95709044---35597576486.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=21st+century+learners+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_off0000f846.bin37b12cdbb40ba21676891b6e5a46d533be0d59d8a2fa1da88dab3ce063992a2f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF846 | 17480 bytes |
font_01_sfnt_off000125eb.bin3c2413f226483bd40aed071b4bf6315047a378859ceef4a5f7ed6a44ab51548e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125EB | 10688 bytes |
font_02_sfnt_off00013eb6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13EB6 | 16792 bytes |
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