MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URLs, many pointing to compromised CMS upload directories, suggesting a link farm or phishing lure. The PDF structure and embedded URLs are consistent with attempts to redirect users to malicious sites for further exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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://smidgel.ru/uplcv?utm_term=datasheet+arduino+due+pdf PDF link annotation
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a9d75ab022b---rolebovexapada.pdfIn PDF document text
- https://carcable-bg.com/uploads/pictures/files/mebojerutalesenaniguge.pdfIn PDF document text
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/ild22hbpdr2lioom51fsv2eno7/58888200784.pdfIn PDF document text
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/qavjoake1tjqd1st9h222k2133/duwesisofikomujudup.pdfIn PDF document text
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/d15290073725505eb892529deaf756ba/84546612891.pdfIn PDF document text
- https://hsse.cl/files/96575411115.pdfIn PDF document text
- http://akcjonariusz.com/UserFiles/file/liwixitevexegu.pdfIn PDF document text
- http://portalkucharski.pl/app/webroot/media/files/zixopiluzon.pdfIn PDF document text
- http://brandiassociati.it/userfiles/file/91299225413.pdfIn PDF document text
- https://gomaihoa.net/upload/files/rututuxovibexe.pdfIn PDF document text
- http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092449c5be1b---75180861042.pdfIn PDF document text
- http://firewheels.pe/userfiles/file/koburozigujemori.pdfIn PDF document text
- http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160790fa78d118---88193122964.pdfIn PDF document text
- http://heibldr.hu/FCKfeltoltott/file/pijatumos.pdfIn PDF document text
- http://ms-krmelin.cz/app/webroot/files/files/49379620300.pdfIn PDF document text
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c894b85811e---fagotelujopubajus.pdfIn PDF document text
- https://rijst.nu/userfiles/file/74785924826.pdfIn PDF document text
- https://dewalt-naradi.cz/media/upload/editor/file/47260815236.pdfIn PDF document text
- https://ispartaorganizasyon.com/ckfinder/upload/files/zipiwured.pdfIn PDF document text
- http://przedszkolenisko.pl/userfiles/file/72844311037.pdfIn PDF document text
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/6e164a8069dd4ec577d946abcfdccca7/timuvovutikevapa.pdfIn PDF document text
- https://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/7cku2b92hhe0sa3a6vdnmte5a6/gamobavuvusututepurufik.pdfIn PDF document text
- https://vietfun.com.vn/wp-content/plugins/super-forms/uploads/php/files/toj10hj39e7d73chiingtrcuc1/44679609586.pdfIn PDF document text
- http://medtravel.lv/images/hand_uploaded/files/dijomalebizabiru.pdfIn PDF document text
- http://polymer-optix.de/userfiles/file/fulafezowerasalop.pdfIn PDF document text
- https://argentinaproduct.com/ckfinder/userfiles/files/44633954533.pdfIn PDF document text
- 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_off0000df78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF78 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f78f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF78F | 10652 bytes |
SHA-256: 14bf3dedea9510ca229c0ff8ba1eb5533f2e4a90085fcf94f3393f72103066c8 |
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font_02_sfnt_off00010fe0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FE0 | 19228 bytes |
SHA-256: a51bed44de5972c72a1567e94ffeeaa91016798888d376e25ce3503c17fc498b |
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