MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to distribute traffic. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://worldwidestationeryholdings.com/files/file/50621308457.pdf In PDF document text
- http://totoquynhhuong.com/upload/files/72333448454.pdfIn PDF document text
- https://gesema.com/UserFiles/file/64117040143.pdfIn PDF document text
- https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/672016c9e53ee735449d30cf24151005/xowarogewumokegifigu.pdfIn PDF document text
- https://777mto.org/contents/files/97274457218.pdfIn PDF document text
- http://bikaji.zohukum.com/ckfinder/userfiles/files/52471211305.pdfIn PDF document text
- http://pkpneu.cz/userfiles/file/57416725993.pdfIn PDF document text
- http://pk.mo/userfiles/file/sofevedatuzopotametomudip.pdfIn PDF document text
- http://all-premium.com/user_file/files/rewuditugisudimulapiv.pdfIn PDF document text
- https://naveenent.com/administrator/imagetemp/file/nevukewunomexu.pdfIn PDF document text
- http://el-master.ru/userfiles/file/rebujudude.pdfIn PDF document text
- http://alltechsro.cz/files/16418671455.pdfIn PDF document text
- https://intersat.lv/files/file/kevuba.pdfIn PDF document text
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b2bf8e896c---lujesukafiwokobefofese.pdfIn PDF document text
- https://ce-mi.pl/uploads/userfiles/files/33015016245.pdfIn PDF document text
- http://musorcentrum.around.hu/files/article/file/90952568920.pdfIn PDF document text
- http://csc-0898.com/userfiles/file/20210909100028_iuhmg6.pdfIn PDF document text
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141d5f5871db---gipax.pdfIn PDF document text
- http://fusheng-vietnam.vn/admin/webroot/upload/image/files/80776334523.pdfIn PDF document text
- http://fijiembajak.com/uploads/ck_uploads/files/wunilapaduxanuvuti.pdfIn PDF document text
- http://bellina.pl/userfiles/file/65556457559.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=grey%27s+anatomy+season+1+episode+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_off0000ac6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC6D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c484.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC484 | 10744 bytes |
SHA-256: ad241118f2a4a63b3afff3cc7649ef09b7876ea3db8368b2b03bea0da0151e73 |
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font_02_sfnt_off0000dd5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD5B | 15872 bytes |
SHA-256: fd9e346d9445d052f886cac7c749101adbb2f4fe0b7962e702b266b6f46feb17 |
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