MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating high maliciousness. The PDF acts as a link farm, containing numerous embedded URLs pointing to potentially malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic suggests an attempt to obscure the true destination or distribute a payload through a network of disposable domains. No scripts were extracted, but the structure and heuristics strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 5
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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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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://hanyangsteel.com/files/fckeditor/file/18769993446131783b778eb.pdf In PDF document text
- http://doks-films.com/pcms/content/file/63352824030.pdfIn PDF document text
- https://www.lsv-wittlage.de/ckfinder/userfiles/files/61989660592.pdfIn PDF document text
- http://ebrinteractive.com/userfiles/file/65227782940.pdfIn PDF document text
- http://onsijsselstein.nl/userfiles/files/57413055163.pdfIn PDF document text
- http://surausa.com/uploads/files/binixubofariwagunavisu.pdfIn PDF document text
- http://vanhacollection.com/images/files/11875672211.pdfIn PDF document text
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/fb52a527d12d281035f64bb12436396e/22373675392.pdfIn PDF document text
- http://kemenyseprosiklos.hu/upload/file/92718464498.pdfIn PDF document text
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613cbe0019348---34447546779.pdfIn PDF document text
- https://ywint.com/ckfinder/userfiles/files/1632217905.pdfIn PDF document text
- http://dtyxbpzx.com/filespath/files/20210906083054.pdfIn PDF document text
- https://infotechsystemsonline.com/ital/www/img/file/87675379421.pdfIn PDF document text
- https://webmakler.org/userfiles/file/8231104783.pdfIn PDF document text
- https://foulardfotografando.it/file/nisokekuveduxirerobozapi.pdfIn PDF document text
- http://denki-shonan.com/uploadsfile/lugodomizuxu.pdfIn PDF document text
- http://rpsbchamber.org/editorData/file/zumamemajeretanopogemo.pdfIn PDF document text
- http://lamelove-zakryti.cz/userfiles/file/bodikunijijozuxekedubawu.pdfIn PDF document text
- http://abwnickersonplaza.com/uploads/files/fimufejogiwapalujukemagow.pdfIn PDF document text
- https://hgqq.hk/tony/churchofgod/ckfinder/userfiles/files/97783614233.pdfIn PDF document text
- http://worldsocialistpartyindia.org/ckfinder/userfiles/files/62000395309.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=zip+android+installPDF 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_off0000bf50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF50 | 10216 bytes |
SHA-256: ad66f631c4e8c00bd92d62e8228a2738f74e8e6b3308de72f09317132cc5adc6 |
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font_01_sfnt_off0000d650.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD650 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ee62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE62 | 17040 bytes |
SHA-256: 34b6066187cf714be7f5d4788c77b63188cc888a4d128f40060a024af0c3e3de |
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