MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs that point to compromised WordPress sites, likely serving as a distribution point for phishing or malware. The presence of external URIs and link farm heuristics strongly suggests an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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 https://oniceh.ru/uplcv?utm_term=how+long+does+it+take+to+ovulate+after+d%26c
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c97189a5eff---346433563.pdf
- https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/d00ef7fd9547e556b54948b4b1a32f0b/nuzevazum.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/0g90h8qc46e0igig7ppc4v0d9v/19614055550.pdf
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/30527f89d55804ece97ffb95b608c3f5/71758479993.pdf
- http://www.nowsingapore.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/1609fd61a81912---42138573277.pdf
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/160775d0042687---tiforixijip.pdf
- http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160cfebc8dc649---vowosatipidib.pdf
- http://bensonlandscape.com/editorData/file/83768408361.pdf
- http://gramercygrand.ru/files/file/49470820096.pdf
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609dec6457d9e---12731741422.pdf
- https://global-product.org/CKEdit/upload/files/99302154047.pdf
- http://smartvoicecom.com/userfiles/93126274992.pdf
- http://ibb-online.ru/f/file/xigekur.pdf
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e00368a17e---38303186518.pdf
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/bdcbe2db4d82b611936ccd8399250cc3/sazojepenedowadifinaze.pdf
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609422e434510---toxuxadenurofij.pdf
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/c3n3ib53hmpdmgadp6qq9i354u/51217144336.pdf
- http://thebrownbag.vn/upload/files/sutupajovufota.pdf
- http://www.apsetedavisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607746749a9bf---suvolononux.pdf
- https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/fa41547134cc84c257ef3dff62411af2/fowefozuk.pdf
- https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/10c914b0bb84c7b6eaa262de79861b04/48924502561.pdf
- https://fzclicks.com/demo/files/editor/file/71278037150.pdf
- 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_off0000e978.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE978 | 16792 bytes |
font_01_sfnt_off0001018f.bin727a36940d9083ff05fa265ecef5fc298ef5c611443f29b5e19444596ca0f726 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1018F | 10864 bytes |
font_02_sfnt_off00011a9f.binfe775d423ec3b9a2b71a44fc44b931cd1aaeb263f65eb8f4af948c1c66149174 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A9F | 17040 bytes |
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