MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous links, many of which point to compromised WordPress upload directories, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The file's structure as a link farm on disposable hosting further supports its use in malicious campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9765
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=anime+characters+born+in+august+28 PDF link annotation
- http://imbirimbir.ru/files/43760218924.pdfIn PDF document text
- http://imailbox.nl/images/uploadedimages/file/fodawafidexetoguzoxal.pdfIn PDF document text
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160860b79e3390---wibegavitebimuwuloxeza.pdfIn PDF document text
- https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c25b0cf88f---baxamawelipanuvokifomibu.pdfIn PDF document text
- http://riggi.ru/userfiles/file/10495719216.pdfIn PDF document text
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b4bf1ed7c97---xilininoxovetamadufodoso.pdfIn PDF document text
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/042f7e2b830a6c73b8301d4735868f29/39330213636.pdfIn PDF document text
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160b4b5e986bf8---14538173247.pdfIn PDF document text
- http://slp72.com/clients/7/7b/7b902bee17765b19ebdde6030f24742d/File/45542240450.pdfIn PDF document text
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c4ff530543---14289490090.pdfIn PDF document text
- https://fullhousetourism.com/UploadFiles/file/20210608000954111.pdfIn PDF document text
- http://rauvuonsach.com/images/uploads/files/9766758783.pdfIn PDF document text
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/f8033526374b03128ebdf01aeaaaf7dc/10700607336.pdfIn PDF document text
- http://bright-mineral.com/uploadfile/file/2021052500471719.pdfIn PDF document text
- http://tuzvedo.hu/elemek/file/60584141078.pdfIn PDF document text
- https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/6n0b1s8j1lt2mrtoe2jqk6f5kl/visutumorepeleruposuxipef.pdfIn PDF document text
- http://etcad.net/np/upfile/file/37490258670.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/dbddd3aa3df473151d2058a14679bdf6/54995597230.pdfIn PDF document text
- https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/8c8fce19bbdb07ec0d166980eca24607/57234291823.pdfIn PDF document text
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609c63d68c800---perotovomepuginakifuju.pdfIn PDF document text
- https://amenajarisiconstructii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16082943a9f599---jelibiwijapejuze.pdfIn PDF document text
- https://pilotcenter.gr/wp-content/plugins/super-forms/uploads/php/files/t6vrigt7hrn4c0cbq362d3bmfq/49935867292.pdfIn PDF document text
- http://pmmagic.vn/userfiles/file/vuvitegizelave.pdfIn PDF document text
- https://artenika.pl/fck/file/zasegikesezan.pdfIn PDF document text
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/0a5c0491376af74f32418fc2ec98745c/98967029810.pdfIn PDF document text
- http://scheiden-maassluis.nl/uploads//file/musama.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f7ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7CA | 17520 bytes |
SHA-256: a33bceae864cde9d5fa44654e9df5de07d0a91f3a4404827ee941e489d2bbe49 |
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font_01_sfnt_off00012526.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12526 | 1740 bytes |
SHA-256: 1210144428f42b454a9f5db8bb408a2a84ad6cbee20689448c5b9ce1604e032b |
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font_02_sfnt_off00012d63.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D63 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_03_sfnt_off0001457a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1457A | 11180 bytes |
SHA-256: b6850edfccde551984b658aa54c937c3666384adb19b76bb954280f19d42cc3c |
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