MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous links, many pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users. The document body is heavily obfuscated and unreadable, providing no direct clues to its specific intent beyond the link farm behavior.
Machine Learning
- Nyx PDF Classifier malicious score 0.9249
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://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/3cc9a87b7b9bfb499e656b8f932ef85f/17737599832.pdf
- https://1877painters.com/FCKeditor/file/86144590480.pdf
- https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/v9nesobqqmadeennh58s8dm2or/10028040229.pdf
- https://zivotzaokny.eu/res/file/nositakagefeduwefurufej.pdf
- http://93564497.com/userfiles/73650782280.pdf
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076c18a65eb3---wumojijatalilapabefexu.pdf
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/4g3uspet54tadref5b57slg648/83263442046.pdf
- https://autoroman-service.ro/imagini_ws/zujuzurenota.pdf
- http://turnyras.lt/Files/file/85426700237.pdf
- http://adhdesign.de/userContent/files/20210619182020-mirara.pdf
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c939ff498b7---5202849419.pdf
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a064709b60b---4005997786.pdf
- http://fipjp.com/userfiles/file/23469554674.pdf
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a15d3fa84d3---paruvodotolirar.pdf
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc24d10e99---jujabavegokexajan.pdf
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073d936b16e3---dumigoluname.pdf
- https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/a238abd13f83246a5653cee2c2fb2110/42757934488.pdf
- http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/fc31cf1ad163b5074ad64b55a831732e/kirabisuwatekimobebub.pdf
- http://mariamozharova.ru/uploads/files/sebubisugoza.pdf
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160cd9ef0608ac---kututorajeruwowemulefaza.pdf
- http://sportgalaktik.sk/userfiles/file/vinelaza.pdf
- http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b9a8fd7299f---xawujazazefidukat.pdf
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8c78b59654---xemuwaji.pdf
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/bb458867a3b87d84a2a6175c3a86db72/91982892456.pdf
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/2378b1bd3be49effa9de4b9b82e60f2b/94730690829.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=the+lord+of+the+rings+full+movie+in+tamil
- 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_003_off00016321.bineb5922c724965b46055bb01d8fff1e13bdab83dd00cdd88133b218a62f327efb |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x16321 | 21144 bytes |
font_00_sfnt_off000142f6.bin8e4e79dde70d2469506d5078aa060f0cfdc7f1157f8579bca6a76e64570551f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x142F6 | 10512 bytes |
font_02_sfnt_off000189a6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x189A6 | 16792 bytes |
font_03_sfnt_off0001a1bd.binba4adae8b48dd9a5c2df77d2f18bee16a775912911adebd58dc4b259cf18e5e6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A1BD | 10928 bytes |
font_04_sfnt_off0001bab5.bin5a6f3d81f5e6e1e674b4e9b7f71f08c86658c69da74c1cca9710880a383b0136 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1BAB5 | 44348 bytes |
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