MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm or phishing attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The document body is heavily obfuscated and unreadable, preventing a deeper analysis of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9820
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://aplus.to/userfiles/file/jirope.pdf
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092efa03e291---81555497550.pdf
- http://eotp.info/sites/default/files/fck/file/xapekiliwejerazexam.pdf
- http://staractivecollection.com/resimler/site/files/dejinuxefa.pdf
- https://anjingliar.com/contents//files/dozogaliwejepejenomu.pdf
- http://railwaysrailroads.com/upload_files/files/pijuwaludusavakusulazi.pdf
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16070ede588dfd---gidisab.pdf
- http://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/lsaqoiema14mn513nkp1b80mu2/fegemarosovot.pdf
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/7eba4c2b219c1adeddb17a9bbc942124/55687951470.pdf
- http://abpaluso.com/upload/file/lirowowazowedurage.pdf
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e095fef2fd6---guxamosoxubejowegefi.pdf
- http://pomodorolennep.de/gfx/userfiles/files/lakaju.pdf
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/f3pi91lb72qtqof8emsg7kt938/79438208991.pdf
- https://vidaleve.net/ckfinder/userfiles/files/vifuxo.pdf
- http://www.maderas-navarro.com/ckfinder/userfiles/files/5823065102.pdf
- http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2414b5527f---22853552593.pdf
- https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/ao0c01pi4cqsc3l82bv9d3m13g/92420948146.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160969c5dbd03f.pdf
- https://kozhikodedeaf.org/admin/my_files/file/repedosaxutujabumuru.pdf
- https://amitadevnani.com/userfiles/file/dafaragudokewok.pdf
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b788909e75---tavuvifasurowaresugagog.pdf
- http://lhjmfamily.com/clients/5/5d/5d8645f74963a96e1aea25f3b610eff6/File/3212914759.pdf
- http://nbnjl.com/userfiles/files/23861213950.pdf
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/79bc7776b79891730e61f6dbfed334c2/newixixewinagiwez.pdf
- https://discovery99.com/userfiles/file/poruxuled.pdf
- https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/c3fc798d0541deb9fdafa96786d07cff/patejofefeguxumebokipuzil.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=hermann+hesse+journey+to+the+east+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_off00011602.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11602 | 16792 bytes |
font_01_sfnt_off00012e14.binf08d938a546804d491eeec8af1967481967534a28d21950994caa2dca31fc194 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E14 | 17028 bytes |
font_02_sfnt_off000159c1.binb2c26c99d0b1a87bc820c5007658e5436dd0338c6cfc3d1b4cae6b8beab02776 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x159C1 | 10960 bytes |
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