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 websites or disposable hosting, forming a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. The presence of multiple compromised CMS upload links suggests a tactic to host malicious files on seemingly legitimate but compromised infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://darangyi.com/userData/board/file/6587557871.pdf In PDF document text
- http://tao-oita.com/admin/upload_filesfile/62433478108.pdfIn PDF document text
- https://getadoc.in/ckfinder/userfiles/files/raxejemaworogabaw.pdfIn PDF document text
- http://nwatchonline.info/userfiles/file/xipukowas.pdfIn PDF document text
- http://ckattorneys.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/dimij.pdfIn PDF document text
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/161311da74009d---revasanadetedug.pdfIn PDF document text
- https://krzczonowice.pl/gfx/file/86815184743.pdfIn PDF document text
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1612ee483825c2---95718534338.pdfIn PDF document text
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613ff142ee8f0---renefu.pdfIn PDF document text
- http://spreewaldatelier.de/img/editor/file/51849417980.pdfIn PDF document text
- http://fence-alarm.com/userfiles/files/pegor.pdfIn PDF document text
- http://yibetter.com/data/files/45937504275.pdfIn PDF document text
- http://aprt1day.ru/file/vajulitomamor.pdfIn PDF document text
- https://resttour.com/images/userfiles/files/lezakoferovawaj.pdfIn PDF document text
- http://www.cenlajobinator.com/siteuploads/editorimg/file/8969678543.pdfIn PDF document text
- https://spcinternational.in/ckfinder/userfiles/files/jajibarejofosuxuvavewezag.pdfIn PDF document text
- http://supair-lux.hu/ckfinder/userfiles/files/rigegi.pdfIn PDF document text
- https://showdetango.com/bafa/userfiles/file/41043671188.pdfIn PDF document text
- http://kingtonkatsu.com/uploads/files/rolanasoxonipan.pdfIn PDF document text
- http://tuhocxuatnhapkhau.com/uploads/ckfinder/files/4609427929.pdfIn PDF document text
- http://radyoislam.com/resimler/files/zurimak.pdfIn PDF document text
- http://www.maderas-navarro.com/ckfinder/userfiles/files/10263629775.pdfIn PDF document text
- http://duoctruongxuan.vn/userfiles/image/file/86293218570.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=information+report+template+pdfPDF 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_off0000d6bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6BF | 10440 bytes |
SHA-256: b27f7a8751993a242ec00a9c4abaf27299bbbfba181d54ded2722575ad002fd3 |
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font_01_sfnt_off0000ee54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE54 | 16672 bytes |
SHA-256: 0e39fdb299e018a2946509a92e835f0f2ee7ea74f89568a85bc26e73d37c1186 |
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font_02_sfnt_off0001193e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1193E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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