MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document contains numerous embedded URLs that point to compromised WordPress sites and disposable domains, indicating a link farm or redirection scheme. The ML classifier strongly flagged this PDF as malicious, and heuristics identified it as a link farm on disposable hosting. The primary purpose appears to be directing users to external, potentially malicious, content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 5
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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://philabc.ru/uplcv?utm_term=email+writing+skills+in+english+pdf PDF link annotation
- http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/dpf1k3fi02lm8qjo69gaj6lu36/27267155999.pdfIn PDF document text
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/272ef3ce7d9d73251da8b9863071dd7e/66679035111.pdfIn PDF document text
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160768f6eca59a---84819078376.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160afb00123747---devibarenexamof.pdfIn PDF document text
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/e7dfe86f7970c6e8c2847cfe6ab91d4b/jodonosifokusir.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160891a50e56d4---weven.pdfIn PDF document text
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d130fb1b6d---13539043694.pdfIn PDF document text
- http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607022c4240b8---gozepize.pdfIn PDF document text
- http://www.blueoak.fr/image/file/lodekupikowox.pdfIn PDF document text
- http://www.chatanakonci.cz/userfiles/file/59787765653.pdfIn PDF document text
- http://www.heksan.com.pl/file/putewudobodilisenugawoj.pdfIn PDF document text
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0d89ac65359e5d237df7b5e8c4384db2/nabarakol.pdfIn PDF document text
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160784b6fda6c4---89107945623.pdfIn PDF document text
- https://vansuloi.com/uploads/userfiles/file/56066597795.pdfIn PDF document text
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/601750fbfca501f267fc30cc8c207043/majoxafok.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fc64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC64 | 5568 bytes |
SHA-256: 459f2daae301603095bb63974613f17fa146c6edfda27dd22be724b95a990d32 |
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font_01_sfnt_off00010f3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F3A | 10476 bytes |
SHA-256: 15d310b8971a2c59e022c2f637997996d1c43d89344fdab5481843d8727d5665 |
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