MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://volgogradexpo.ru/ckfinder/userfiles/files/tetudesavutorodasinawijej.pdf In PDF document text
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc6c8d52f38---fuwarub.pdfIn PDF document text
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608f7cedd022a---42267205285.pdfIn PDF document text
- http://drairtools.com/ckfinder/userfiles/files/pilararobesam.pdfIn PDF document text
- http://vorne-sitzen.eu/pcms/content/file/kovuv.pdfIn PDF document text
- https://weilaimachinery.com/userfiles/files/15860424212.pdfIn PDF document text
- http://canevinclassof70.com/clients/6/6b/6b8b8ee0d314e59372afbcb75100d768/File/56885445196.pdfIn PDF document text
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/16087f67a16e7a---nigilugegeme.pdfIn PDF document text
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca23dbc3af---19041822513.pdfIn PDF document text
- http://qytbearing.com/upfile/file/lixadabutoteguji.pdfIn PDF document text
- https://syntellect.ru/Repository/file/mawufixawerizugepemanupe.pdfIn PDF document text
- http://victoryelectricalsupply.com/ckfinder/userfiles/files/48347337693.pdfIn PDF document text
- http://www.annaleehuber.com/content_files/file/lunoxabutebewolubut.pdfIn PDF document text
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160886ce364748---nokofuwut.pdfIn PDF document text
- http://hillandbrownfamily.com/clients/76964/File/jenofababome.pdfIn PDF document text
- https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/efr492pnbht42u9eris5k52j7i/29349805460.pdfIn PDF document text
- http://noxsun.com/jingkelun/userfiles/files/20210714044453.pdfIn PDF document text
- http://bamila.vn/luutru/files/22533397187.pdfIn PDF document text
- https://minutesnap.com/wp-content/plugins/super-forms/uploads/php/files/5885e9d24e48589b31d3dbcea8f358c5/603076896.pdfIn PDF document text
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f64f00e89d6---11272228721.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/859aea9485f27bc515051d320529d0ad/malumajoluzitukuf.pdfIn PDF document text
- https://medtek.vn/storage/file/63575017652.pdfIn PDF document text
- http://menloathertonhigh1980.com/clients/6/6f/6f83464fe0b13873896cace574d4baa5/File/vurusijazopefupuxanoret.pdfIn PDF document text
- http://4998horo.gmmwireless.com/contents/files/82137812465.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=tamilrockers+2018+telugu+movies+free+downloadPDF 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_off0000fff3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFF3 | 11628 bytes |
SHA-256: 624ec47bae24973868ac87959fa9179971eac7112eac111729a224dd0022e69b |
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font_01_sfnt_off00011b93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B93 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000133a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133A5 | 17196 bytes |
SHA-256: 86dcb2c070540fd2876e83dc5c5969704b32b4009428573215e67dec7f39167a |
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