MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The primary attack pattern involves luring users through a seemingly innocuous document to external, untrusted sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://anabakorea.jp/userfiles/file/10104216788.pdf In PDF document text
- http://autosoftware.company/autoresponders_images/files/lalotudura.pdfIn PDF document text
- http://gradn.ru/uploades/fckeditorfile/56612459241.pdfIn PDF document text
- http://diamantina-joaillerie.com/ckfinder/userfiles/files/33646119121.pdfIn PDF document text
- https://medsplus.us/admin/images/file/92786293413.pdfIn PDF document text
- http://chemonova.com/FCKeditor/file/36053388794.pdfIn PDF document text
- http://www.agot.pl/upload/file/17878695814.pdfIn PDF document text
- http://mylodge-naoshima.com/77171604405.pdfIn PDF document text
- http://daiichilogistics.com/uploads/news_file/vabulagigatowipu.pdfIn PDF document text
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614566dd4dd55---19871191983.pdfIn PDF document text
- http://haokunchem.cn/upload/files/depodiropulibozutefufesu.pdfIn PDF document text
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161341f1de19bb---27640849928.pdfIn PDF document text
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/f624c496373d5407e518203a9cc78395/mamuxekuwudisi.pdfIn PDF document text
- http://tomaszfilipczak.pl/userfiles/file/52605004929.pdfIn PDF document text
- https://ladangmimpi.com/contents/files/40922518479.pdfIn PDF document text
- https://anninhsieuthi.online/upload/files/xowuriguladugifid.pdfIn PDF document text
- http://studiogallerani.it/userfiles/files/10425944460.pdfIn PDF document text
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd45b012dd---26201769699.pdfIn PDF document text
- https://mimpishio1bet.com/contents/files/tokutubemuxilevatifaveka.pdfIn PDF document text
- https://economiadecomunion.net/ckfinder/userfiles/files/45953462297.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139132b9b368---bipix.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=unturned+kitchen+knife+idPDF link annotation
- 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_off0000f720.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF720 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010f37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F37 | 10276 bytes |
SHA-256: 0f2cdb2fea552eddcd86b87a6fc3b6ca9d3c91402da90df2b4feb7cb95f60beb |
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font_02_sfnt_off0001263b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1263B | 17924 bytes |
SHA-256: f831ba7ca0ce284744ee8a2787ce6c3205285205750f5121c1c411ce8f311bdb |
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