MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier indicating maliciousness. It contains numerous external links, many pointing to compromised WordPress sites, suggesting a link farm or phishing lure. The document body, though heavily obfuscated, contains metadata related to PDF creation and a search term, reinforcing the idea of a lure to external content. No scripts were extracted, but the overall structure and heuristic firings strongly indicate a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://krisoc.ru/uplcv?utm_term=city+of+stars+piano+sheet+music+free+pdf PDF link annotation
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080ff3172ff0---85465704401.pdfIn PDF document text
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/j638lqnosv9ocvidma8qi09fl0/zubema.pdfIn PDF document text
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc400792a9---paposevavizovomikedu.pdfIn PDF document text
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab0c5d29fda---76092220172.pdfIn PDF document text
- http://worldwidefilipinoalliance.com/uploadedFiles/files/79762396587.pdfIn PDF document text
- http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/16099bded4549e---39420645271.pdfIn PDF document text
- https://bawaniint.com/ckfinder/userfiles/files/zofuwifugeropufuxewo.pdfIn PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/90tb5l985vjicd5udo79jr5lc3/43098142037.pdfIn PDF document text
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ace7029529e---sazavolojefug.pdfIn PDF document text
- https://bczenekar.hu/files/file/gasagilejofav.pdfIn PDF document text
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/ee22614a3fe05644518f965bf3f32e6c/34750335920.pdfIn PDF document text
- https://mollis.rs//files/ludovebuwitojex.pdfIn PDF document text
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b9c9e0cab77---78723866037.pdfIn PDF document text
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160aa68ca909df---50762970386.pdfIn PDF document text
- https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/66585db091c576880b8ec0a9b5b7f0df/19803202020.pdfIn PDF document text
- https://festival.bg/fckeditorfiles/file/85960588120.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ef8e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF8E | 5368 bytes |
SHA-256: cc87b696656c3e82f438128fd0091e660698339f1880e7740be115fedcec5eee |
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font_01_sfnt_off000101b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101B0 | 10852 bytes |
SHA-256: 7835cc34cc273aae89814c02acd40dd20c494d139cac88e61e5235735519e56f |
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