MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external websites, some of which are hosted on compromised CMS uploads or disposable domains. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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 https://biomedchita.ru/imeg_master/file/xujoxi.pdf In PDF document text
- https://butagallery.com/userfiles/files/satotekemupipep.pdfIn PDF document text
- https://kfk-dekoration.dk/images/uploadedimages/file/13287965663.pdfIn PDF document text
- http://mikailang.com/userfiles/file/20210921184946_515469359.pdfIn PDF document text
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130c5d588d2f---50330064456.pdfIn PDF document text
- http://keralastatetailorsassociation.com/userfiles/file/vumemuxebizunezemevab.pdfIn PDF document text
- http://sahamit.net/userfiles/file/1974503988.pdfIn PDF document text
- https://hamayeshniroo.com/shop/file/rogiviputebukas.pdfIn PDF document text
- http://tinhdauvietnam.vn/upload/files/xuvidapetogiwolu.pdfIn PDF document text
- http://nscenter.cn/upload/files/57819223192.pdfIn PDF document text
- https://fundreamz.com/ckfinder/userfiles/files/79029965872.pdfIn PDF document text
- http://azseal.net/uploads/userfiles/file/26759659710.pdfIn PDF document text
- http://jjkxmy.com/upload/files/202109170759327035.pdfIn PDF document text
- http://hanasushi6.com/uploads/files/95680957928.pdfIn PDF document text
- http://vuonlan.vn/data/upload/files/2464541320.pdfIn PDF document text
- http://orgue-chantepie.info/FCKeditor/upload/file/jamomeburefewojumoda.pdfIn PDF document text
- https://moulindelarroque.com/userfiles/file/jinagomipotevefiku.pdfIn PDF document text
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613bada2ef122---fupet.pdfIn PDF document text
- http://drironcat.com/images/file/difeludimit.pdfIn PDF document text
- https://cafemocion.com/userfiles/file/42170975394.pdfIn PDF document text
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/161501e06c87a3---42790999574.pdfIn PDF document text
- https://thuaphatlaihanoi.net/uploads/files/sedaluzewosezuvaxu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=chemistry+unit+7+reaction+equations+worksheet+1PDF 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_off0000bc0e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC0E | 18996 bytes |
SHA-256: 2e08f7b901163d4501e1c17ec0821f7f5a62f4bb85b5df65252ae7525497c2d7 |
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font_01_sfnt_off0000ee25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE25 | 11120 bytes |
SHA-256: cc3289ae99c7ba1f57a4294262b90cb40228ece510f4abf6edc5672e347d70f5 |
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font_02_sfnt_off0001082d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1082D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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