MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites, which likely serve as part of a link farm designed to redirect users to malicious content. The presence of these links and the detection as a phishing trojan indicate an attempt to lure users into downloading further malware or visiting malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://www.gasserbush.com/wp-content/plugins/super-forms/uploads/php/files/38789701e8f1b562eff47722afec4d77/56387420993.pdf In PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/e40a2c74r4bc84ts61l8c5p880/405574789.pdfIn PDF document text
- https://bywuf.org/upload/editor/files/pafulijomilusoj.pdfIn PDF document text
- http://wildpflanzen-planung.de/file/refaguvazezululonowo.pdfIn PDF document text
- http://apvn.info/userfiles/file/luxuwaro.pdfIn PDF document text
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8d8d4bc8ab---3560425684.pdfIn PDF document text
- http://bienchidan.org/uploads/files/30917979674.pdfIn PDF document text
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/923634d57dee7c35f9a4fe941cc29acc/zeliwitixesodorirexodi.pdfIn PDF document text
- http://livilgirls.com/files/xofeniferegaletobokafe.pdfIn PDF document text
- http://dalnoboy.org/data/filestorage/upload/files/87473720798.pdfIn PDF document text
- https://htlexpress.com/ckfinder/userfiles/files/lekudapukoxitagezusuti.pdfIn PDF document text
- http://www.companyforte.com/imagenes/editor/file/65960078810.pdfIn PDF document text
- https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/d129e22608ae68adf200f5c3516ddfff/39230187324.pdfIn PDF document text
- http://teaandtiarasmontreal.com/clients/f/f0/f03dfc1790708d0b03c48e9879ef2ea6/File/bogin.pdfIn PDF document text
- http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/79117990d5d2d52b21f2e75e10f12387/76471981417.pdfIn PDF document text
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1609f1f3a3da38---wamizowe.pdfIn PDF document text
- http://poorclarescork.ie/images/zijov.pdfIn PDF document text
- http://eros-arena.com/eros/userfiles/file/tuweku.pdfIn PDF document text
- http://hgbs.de/userfiles/file/802297415.pdfIn PDF document text
- https://bmw-zona.ru/uploads/file/56609553869.pdfIn PDF document text
- http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070b1640b7af---tofilulapaganukeres.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609a5982b914d---natakofofiwe.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610529b68ae89---kozufidatasenodol.pdfIn PDF document text
- http://theonejsc.com/userfiles/file/22890230148.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=sindesmosis+tibioperonea+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e329.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE329 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fb3b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB3B | 18616 bytes |
SHA-256: d5d6c1bb59c8092a4512bc012781c6603cfaca5eba9092bc9ce3d7cd38d7fc10 |
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font_02_sfnt_off00012b8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B8A | 10828 bytes |
SHA-256: 8cb5c1326c9db167cd778d1204babcda49dfb88d2388584cd0fb93388d6f6b5d |
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