MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous external links, many pointing to compromised WordPress sites and disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics reinforces this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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=how+to+deactivate+icloud+subscription PDF link annotation
- https://dunaweb.co/bg_image/files/dufisapiposoto.pdfIn PDF document text
- http://cassotech.nl/site/data/ws/files/mazupofulefagejijilufas.pdfIn PDF document text
- http://lynhuagiasi.com/Images_upload/files/81349712361.pdfIn PDF document text
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/161525735212d9---kuzakoxafojotewibisu.pdfIn PDF document text
- https://markapin.com/calisma2/files/uploads/dukawujegidojejiv.pdfIn PDF document text
- https://nhomphuongnam.com/upload/files/jidixan.pdfIn PDF document text
- http://mrcookie.tw/upload/editor/file/031258013398.pdfIn PDF document text
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/161468a67a0ee1---rinifolakadosewigopanu.pdfIn PDF document text
- http://www.mab-solutions.fr/upload/file/67476903021.pdfIn PDF document text
- https://probidjp.com/ckfinder/userfiles/files/20210917_003108.pdfIn PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16142571102a6a---junaj.pdfIn PDF document text
- https://hotel-la-licorne.fr/userfiles/file/91291894247.pdfIn PDF document text
- http://nct-vn.com/userfiles/file/limiguvora.pdfIn PDF document text
- http://logtech.cz/foto/Image/file/8773298100.pdfIn PDF document text
- https://kamwalibais.com/userfiles/file/zaxaji.pdfIn PDF document text
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/ktet52f26vh6emvoeo44jsbc6s/61600337652.pdfIn PDF document text
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/161413810cb11c---juguboguvezitonog.pdfIn PDF document text
- http://abwvictory.com/uploads/files/jalage.pdfIn PDF document text
- http://globalnetworks.de/www.galabau-poscher.de/main/preview/ckfinder/userfiles/files/tukizusunomusugeponen.pdfIn PDF document text
- http://medicare-darmstadt.de/bilder/UserImages/file/durirovanorawal.pdfIn PDF document text
- https://irisapp.cn/uploadfiles/fckeditor/20210903/file/16306104301671.pdfIn PDF document text
- http://aescantabria.es/upload/fckeditor/file///9041523321.pdfIn PDF document text
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16147575fb6f31---lataride.pdfIn PDF document text
- http://biblioteka-belzec.pl/upload/files/lekevopepizunekelogopa.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_off0000dd12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD12 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f524.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF524 | 18888 bytes |
SHA-256: ab9b5dd8fdbb91263e987b56f322a08bceaac5d8c57bb4d300d22b263b4360a6 |
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font_02_sfnt_off000125d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125D3 | 10888 bytes |
SHA-256: 8ab5a328de5a6c75cf01b6e747ac7442f71fa50ee03ab67d0a3ce6b27dbc7443 |
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