MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple links pointing to compromised WordPress sites, identified as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The document body is unreadable, but the heuristics and URLs suggest a tactic of using compromised infrastructure to host malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/b4f07a0d410aefcdffdd51153c636662/xosaxelugufadijonisokavol.pdf
- http://msamericapageant.com/clients/873634/File/jufuvo.pdf
- https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/f1e5403b675538cf681b5992f4bfa136/69560123113.pdf
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/30ea78e5607fce99090ded425593e0cd/gomogoxuxoworizivemumu.pdf
- http://marinapogon.pl/upload/file/fomusefezub.pdf
- https://avela.md/userfiles/file/79673820306.pdf
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8b9b35f5ac---76520903018.pdf
- https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/28d91370d1493190dab8779d9a56108c/27165508855.pdf
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/d24a45cc012e46aef704ea74287c558b/69469836934.pdf
- http://yuli-china.ru/d/files/51385830969.pdf
- http://fishtech.org/uploads/userfiles/file/file/seputo.pdf
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606dff376c9ac---90514526848.pdf
- https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/7247b69cb669a856957c5e249628e328/wipavusemitafujakuse.pdf
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d9f77cc565c---31951644056.pdf
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/160a2ee4c9162a---kaselejitexenageroketa.pdf
- https://elnativocoffee.com/silver/upload/files/50297869438.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160897b769d00f---66744525303.pdf
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16094b8d452f1f---34808827406.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=what+months+are+quarterly
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fa37.bin8a3e16a393278940b554e344a28662bacb6dae861f0fd5de86581fa6dfb297b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA37 | 10636 bytes |
font_01_sfnt_off00011275.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11275 | 16792 bytes |
font_02_sfnt_off00012a87.binc72fed2b8ae33e96e6a01cadb2e0287beb6f869afb0156cbd4251913833ad846 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A87 | 17116 bytes |
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