MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to various domains, many of which are associated with compromised CMS uploads or disposable hosting, indicating a link farm designed to distribute malicious content. ClamAV and ML classifiers also flagged this PDF as malicious, suggesting it is a phishing or trojan delivery mechanism. No scripts were extracted, and the document body was unreadable, so the primary attack vector appears to be the embedded URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://kangmeideyiliao.com/uploadfile/file///2021090111184544.pdf In PDF document text
- http://classicalgardenstatues.com/uplds/file/24397045760.pdfIn PDF document text
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/575c43920ad21bc12129df4264c7fc46/bazonalofenugakaxu.pdfIn PDF document text
- http://jvcc.cn/ckfinder/userfiles/files/210909182507808846jw325.pdfIn PDF document text
- http://yhbinternational.com/userfiles/file/nupupidusog.pdfIn PDF document text
- http://globomax.eu/userfiles/file/92421064535.pdfIn PDF document text
- https://www.esicm-old.org/admin/lib/ckfinder/userfiles/files/womozononabixoroj.pdfIn PDF document text
- http://cwpni.com/userData/ebizro_board/file/869993592.pdfIn PDF document text
- http://eco-versute.com/app/webroot/ckfinder/userfiles/files/bizoxovamonikepenal.pdfIn PDF document text
- http://billsky.ee/files/file/1506463188.pdfIn PDF document text
- https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/161351fa1188e4---84087686595.pdfIn PDF document text
- http://clinicaveterinariasangiacomo.it/userfiles/files/ketatiratovobowefulem.pdfIn PDF document text
- http://hitecds.com/userfiles/file/zipugik.pdfIn PDF document text
- http://qualityspices.in/ckuploads/files/79230439351.pdfIn PDF document text
- https://rolcsi-bau.hu/userfiles/files/visalobifu.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137559498a37---bitumefuped.pdfIn PDF document text
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/u7ss9kb5o4vp995ofenqanivb0/27633189140.pdfIn PDF document text
- https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/42b2658260836f8f1d55f52b70b3fe78/sigipemaxejeto.pdfIn PDF document text
- https://junona.manyel.website/images/uploads/medium/gaxurigidoj.pdfIn PDF document text
- http://remproekt-m.ru/admin/ckfinder/userfiles/files/12071324866.pdfIn PDF document text
- https://thucphamtruongxanh.com/Upload/files/vigitufirewederu.pdfIn PDF document text
- http://appextskihjthj.handysociality.com/upload/files/36993785300.pdfIn PDF document text
- https://komunalno.vrgorac.hr/files/dasorubanoniniwerotol.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=sinhala+song+mp4+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_off0000c4d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4D1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dce8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCE8 | 10748 bytes |
SHA-256: 2e9f7edd63c72262269f66adff8d6edff7d4aca8f3cd5769bfaeb166cf69794d |
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font_02_sfnt_off0000f532.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF532 | 17660 bytes |
SHA-256: ffa86408d835cca5610ffc379a2e0b6b76d123f90a0b6fd6e97adb8c4308a161 |
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