MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised or disposable hosting domains, indicating a link farm designed to redirect users. Heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this malicious intent. The ML classifier and ClamAV detection further confirm the malicious nature of the file, likely as a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
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://garglob.ru/uplcv?utm_term=tipos+de+palabras+seg%C3%BAn+su+formaci%C3%B3n+ejercicios+resueltos PDF link annotation
- http://soepcentrale-dekeyser.be/userfiles/file/vodojabadovane.pdfIn PDF document text
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/4f298572a02b41470f94a74a966c942f/tusonebox.pdfIn PDF document text
- http://web-news.eu/www/pkpar/userfiles/file/33971858126.pdfIn PDF document text
- https://tempatpasang.com/contents//files/49273636279.pdfIn PDF document text
- http://winso.tw/userfiles/file/mopadi.pdfIn PDF document text
- http://project-lovcen.me/userfiles/file/xovexitifemufuxif.pdfIn PDF document text
- http://eurogeographyjournal.eu/admin/fckfiles/file/diwareviz.pdfIn PDF document text
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160bfb3ff85d23---vijekurajojepazuw.pdfIn PDF document text
- http://fobosgrunt.ru/files/ckfinder/files/1228340437.pdfIn PDF document text
- https://daaeportrett.no/upload/file/kuzadinanid.pdfIn PDF document text
- http://uhy-th.com/image/upload/files/rejajuwagomudexud.pdfIn PDF document text
- http://rdasesores.gestconcursal.com/editor/ckfinder/userfiles/files/lagumijuxifefofofuzir.pdfIn PDF document text
- http://jar-ted.pl/file/37090836854.pdfIn PDF document text
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/09589aac78234a503f294e3080c9b4c0/rakiteken.pdfIn PDF document text
- https://detectiveoffice.net/userfiles/file/vosajefa.pdfIn PDF document text
- https://susta.vn/userfiles/file/wadawazimeri.pdfIn PDF document text
- http://jevades.com/aircraft/fckimages/file/93239254618.pdfIn PDF document text
- http://tcihk.com/userfiles/karusumojepuxilobogopuk.pdfIn PDF document text
- http://agiusfuneraldirectors.com/files/file/17772173043.pdfIn PDF document text
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/9c7cfa0b9148435af4c63c76b6afcf29/88924239598.pdfIn PDF document text
- https://kaowei.tw/image/files/20210630_153606.pdfIn PDF document text
- http://globaltruthmediagroup.com/clients/a/aa/aa8380eac451876ae6ab993bf3a720d6/File/31355787653.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_off0000ffb1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFB1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000117c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117C8 | 11548 bytes |
SHA-256: 2160e124ebf99d5b21921bdbf16d6accdbb643a87cedb08dee336d996e419e3e |
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font_02_sfnt_off00013239.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13239 | 18944 bytes |
SHA-256: 5f711d27d00fdda3772e761bbe0d69ab80e20db6f03c298659a66b7f076af155 |
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