MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains numerous external URIs and links to compromised WordPress upload storage, suggesting it functions as a link farm or phishing lure. While no scripts were explicitly extracted, the presence of PDF-specific heuristics and the nature of the URLs indicate a malicious intent to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9924
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://laborke.ru/uplcv?utm_term=form+a+polynomial+with+given+zeros+and+degree+with+imaginary+numbers
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608459a6c612e---59116175889.pdf
- https://quaint-house.com/vasovonazo.pdf
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/1608b6d352261a---56902628977.pdf
- https://bamfieldrental.com/userfiles/file/mebeza.pdf
- https://garyjetcenter.com/wp-content/plugins/super-forms/uploads/php/files/63d406cd713ca3050be6cb14040dc982/jivif.pdf
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/23cd09b0c39808d1b83664754468df10/fenuv.pdf
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/mslanmcac7mu68nnqtkm7a34vd/zuwisejefezasarevif.pdf
- http://nitexprofi.cz/userfiles/file/91430042615.pdf
- https://caribemed.com/userfiles/file/36001910213.pdf
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/56bdbeb5abc6943774dc25d8c0a3430a/14821986321.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa95840ece1---rolebifuzafiron.pdf
- https://roweryelectra.pl/app/webroot/uploads/file/16221975844952.pdf
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/bapemavixewirajebupom.pdf
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ad34597e84a---54745055740.pdf
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/a925fcad850d63e02c76ed5be105413a/41983396778.pdf
- http://rolmech-strzelno.pl/Upload/file/zakafomaluxik.pdf
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160788afe71bf4---47070911464.pdf
- http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/5fb9dff1de0e556417fb943137052e92/1179687011.pdf
- https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/a30c121546920fd05c80a0b850ae4f66/volofamajixinojilalebafol.pdf
- http://obasekiestates.com/UserFiles/file/fejulopuremeb.pdf
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/45c19fe9cd16142fabbc9f35b5e6c657/9840379153.pdf
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d10f2ad592---fabat.pdf
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c55a3a5793f---jogumajevexof.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160b7a20a29518---61493142982.pdf
- http://yoron.net/up/files/donexugumewufawenekov.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e5ec.bin325c5f5cda05429ae92d15c23118ca1b8712e485108c584e1e30b0ff615913b7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5EC | 16084 bytes |
font_01_sfnt_off0000fb19.bin1dbd191a7fa8a3531e6fcb8acac2b2ba1d12e7d5433e42325161704e30135415 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB19 | 11380 bytes |
font_02_sfnt_off00011561.bin7ffdee2c1c46cd3ac5193c43e3c4af337af08b17dc06de986a11ea5f78fd00fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11561 | 19104 bytes |
font_03_sfnt_off0001488a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1488A | 16792 bytes |
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