MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://gespk.com/userfiles/file/gunere.pdf In PDF document text
- https://takarasushimn.com/userfiles/files/zurikilebokumilid.pdfIn PDF document text
- http://olgapolyakova.de/files/files/lesidozuserurub.pdfIn PDF document text
- https://cualuoihoanmy.com/uploads/userfiles/file/98459996997.pdfIn PDF document text
- https://spcinternational.in/ckfinder/userfiles/files/90905746563.pdfIn PDF document text
- http://hzzxtl.com/UploadFile/file/20210922195845138.pdfIn PDF document text
- http://maurovalleferroarchitetto.eu/userfiles/files/muladotagupov.pdfIn PDF document text
- https://maximatrimony.com/ckfinder/userfiles/files/94222649879.pdfIn PDF document text
- http://alexandersorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/8788686356.pdfIn PDF document text
- http://rsti.biz/files/fck/file/molukowub.pdfIn PDF document text
- http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/83d279499b1bf127b2675a6e41899296/xebisosijadejakimalak.pdfIn PDF document text
- http://otevrel.eu/ckfinder/userfiles/files/110486712.pdfIn PDF document text
- http://emeat.ru/var/files/furekiwonovewasa.pdfIn PDF document text
- http://fantalife.nl/userfiles/file/97031979889.pdfIn PDF document text
- http://standartbio.com/fckfiles/file/tisusodowilinanewas.pdfIn PDF document text
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/89e37592f08bfa13d6cba3400d23ca2d/61881103040.pdfIn PDF document text
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142ab7dd82bd---wutonojuralisokuzi.pdfIn PDF document text
- https://truckforceone.com/upload/editor/file/36508409664.pdfIn PDF document text
- https://sunriseinnjasper.com/nbloom/fckuploads/file/65410555210.pdfIn PDF document text
- http://garageanything.com/js/upload/files/96233986116.pdfIn PDF document text
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/161302e1019b23---zobokijikafebow.pdfIn PDF document text
- https://rent-1.es/ckfinder/userfiles/files/78582563479.pdfIn PDF document text
- http://chemtron-vostok.ru/media/file/jibenegeluparu.pdfIn PDF document text
- http://parvazyab.net/basefile/api203/files/36431522878.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=omega+ruby+emulator+downloadPDF 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_off0000b450.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB450 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cc62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC62 | 16192 bytes |
SHA-256: 3489582205f8ca8f663275b50c45177293e874088ad992f98a02947f5b87cac5 |
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font_02_sfnt_off0000f538.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF538 | 10796 bytes |
SHA-256: 746616e88528e5da2627b5c86d90518b7ea14d304cfa1dd4bd7c2235bf338dd8 |
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