MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users to malicious content. Heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this phishing-related activity. The ML classifier and ClamAV detection further support the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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 http://xenangheli.vn/public/files/54472718734.pdf In PDF document text
- http://greenbiotech.vn/uploads/userfiles/file/rosajoge.pdfIn PDF document text
- http://coumert.com/images/file/fuwadawisaburawu.pdfIn PDF document text
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/babf959599a9748aaa7eeda81ba995d1/fowujisodejitexaso.pdfIn PDF document text
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612eeae3c9df8---59627895392.pdfIn PDF document text
- http://faurerom.com/userfiles/file/dejokuvunus.pdfIn PDF document text
- http://faceconnects.com/ci/userfiles/files/jikogakubakuwusaxagup.pdfIn PDF document text
- http://chayka-svg.ru/files/83733238166.pdfIn PDF document text
- https://speedwayinfo.hu/uploads/file/23807460606.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/161410d5e17603---92247671397.pdfIn PDF document text
- https://mariapolis.es/ckfinder/userfiles/files/dowepiwe.pdfIn PDF document text
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b36fdc4cbc---47553874897.pdfIn PDF document text
- http://myphamhelios.vn/luutru/files/zunodegu.pdfIn PDF document text
- http://airmon.hu/images/files/vumopoxogekovemote.pdfIn PDF document text
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/161410f624e07b---jobob.pdfIn PDF document text
- http://chugguwang.com/files/fckeditor/file/55100626476.pdfIn PDF document text
- http://geoplan.su/userfiles/file/4299611128.pdfIn PDF document text
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/4a03p50hb8olcdfstler01b6ng/mapen.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16140ed47cf782---sejepovoranitewelepumovad.pdfIn PDF document text
- http://lpkgoodframeupvc.com/userfiles/files/31454563372.pdfIn PDF document text
- http://lsneotek.com/ckupload/files/dekexofalil.pdfIn PDF document text
- http://fitviewer.info/files/file/tifezikejedupoxuka.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=esl+reading+passages+intermediate+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_off0000da4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA4B | 18736 bytes |
SHA-256: 1431cacc9703425d82af2039a7ef99f31e9c1c5eae03ec9f3f110783fa584b53 |
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font_01_sfnt_off00010afb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AFB | 10704 bytes |
SHA-256: ea661e6ef44dca80d30c4a5bcfddf7855b5e4e86e48c344db689b1af5e7cc8b4 |
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font_02_sfnt_off00012343.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12343 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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