MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, pointing to numerous compromised websites, many of which are WordPress installations. The presence of 'utm_term' parameters suggests a phishing or SEO-based lure to drive traffic to these compromised sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://chcial.ru/uplcv?utm_term=compleanno+meghan+markle PDF link annotation
- https://kolbandibileklik.com/resimler/files/83463860333.pdfIn PDF document text
- https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/3sk2tsptpceoumd13sqtosa9c3/bizemakimoli.pdfIn PDF document text
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e0e584c8b7a---55719453591.pdfIn PDF document text
- http://vitalenzyme.com/uploads/fckupload/file/368459661.pdfIn PDF document text
- https://numberonerevolution.it/file/78169461141.pdfIn PDF document text
- https://smartcirclegroup.com/userfiles/file/merefowalutumev.pdfIn PDF document text
- https://thechoose.it/file/jakewugudisimuzup.pdfIn PDF document text
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606f8b898de25---74233764845.pdfIn PDF document text
- https://dpmceramiche.it/file/genedubikalezolakoravi.pdfIn PDF document text
- http://webelievedin1984.com/clients/6/67/676624d6593aa512bfa6e10e765af00e/File/93790222368.pdfIn PDF document text
- http://fiscalonline.eu/app/webroot/files/userfiles/files/8042974037.pdfIn PDF document text
- http://busankid.com/webfiles/board/file///23578066244.pdfIn PDF document text
- http://alnoorcity.com/userfiles/file/8166952398.pdfIn PDF document text
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609eda987078f---dopebopezakufewetimonidi.pdfIn PDF document text
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/c8b1b01987e98b48a361c3e4c508f4f1/jipadi.pdfIn PDF document text
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/akvvpe01r9bv14ah9j13m9qns4/76340439031.pdfIn PDF document text
- http://lab4050.com/upload/editor/file/pasufozitiwaruvusi.pdfIn PDF document text
- https://www.visitrwanda.com/wp-content/plugins/super-forms/uploads/php/files/a82bbaa7ba12cfc8bec4e47ed93c8c8a/41680349401.pdfIn PDF document text
- http://mariamozharova.ru/uploads/files/8867868099.pdfIn PDF document text
- http://generaltubi.com/container/ckfiles/files/vizorewipebonedotexur.pdfIn PDF document text
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9fa05b5d5---46530336278.pdfIn PDF document text
- https://kozhikodedeaf.org/admin/my_files/file/jidisoperufatonobiluwopa.pdfIn PDF document text
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/e0b30b1e8329bd5d73709eca38183307/sexoxazevazopowogotiveku.pdfIn PDF document text
- http://burfel.ru/upfiles/files/29676219314.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_off0000f319.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF319 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010b30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B30 | 10464 bytes |
SHA-256: 4d431ff203b3a46798309595a65956499fa559b787e6d5ccbd6439631edbabf0 |
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font_02_sfnt_off000122b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122B7 | 18740 bytes |
SHA-256: 2b0d8c25811296407872e15a9010182621a3694ab9049f18882a2631dda08fb8 |
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