MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of creating link farms on such sites. ClamAV detection and the ML classifier strongly suggest malicious intent, likely phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9920
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://smidgel.ru/uplcv?utm_term=flounder+with+bread+crumbs
- http://sistersaviopublicschool.com/userfiles/file/pakosuruxewifimebexenebo.pdf
- http://allnatureint.com/userfiles/file/gafewese.pdf
- https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a511321a835---nimetagoweso.pdf
- http://lamekatus.ee/uploads/ckeditor/files/winirikedejubofekagas.pdf
- http://bmsorganica.com/userfiles/file/dujotubaga.pdf
- http://capmar.eu/userfiles/file/zurosefuperimoxi.pdf
- http://xn--aknmedikal-yub.com/uploads/file/29749976114.pdf
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/080399cabdae5ecf38dfcdf067e8cb5c/dodonenivufewa.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a3ca99df36f---puluxa.pdf
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160779b411d126---muwukuretuzutogidifazemu.pdf
- http://hi-reid-solutions.com/wp-content/plugins/super-forms/uploads/php/files/d614fc2735927d4407c339b85676ea57/92847860639.pdf
- http://cariboohose.com/userfiles/file/7131464860.pdf
- http://www.introspekta.si/ckfinder/ckeditor_uploaded_files/files/baponawupadu.pdf
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b169d97f8a5---91668676506.pdf
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608098c37f809---37548931557.pdf
- https://pousadamarazul.tur.br/wp-content/plugins/formcraft/file-upload/server/content/files/160911cb6655fd---jedupovodofozagonobi.pdf
- http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5be1f36595---dixifeburato.pdf
- http://jrmhandling.nl/upload/file/31654165516.pdf
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607c45fdd9401---nasupa.pdf
- http://market-oborudovanie.ru/upload/file/67064153775.pdf
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606d27ba6fc10---xuzixenanasefimadoto.pdf
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/q48oikl4globb8m4nk8p8jrb5t/tamijezego.pdf
- http://sam-global.info/files/file/mevonedafepeduxonuzodudog.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fac8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAC8 | 16792 bytes |
font_01_sfnt_off000112da.bin5792d4bef495f365723cdedd5ba7bb4ca3f6fa4213eaee1839128b50250a4fc0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112DA | 18492 bytes |
font_02_sfnt_off0001439f.binc3d5025b6f6325ba019e44cc5325488a1ec6262b6c68ebcee70e4c4bc8f34a2d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1439F | 10936 bytes |
font_03_sfnt_off00015ccb.bin7d15b2d6d265aaca51dda18faee70a1b8fa9d95ed54cb111fb0895789092f9ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15CCB | 16312 bytes |
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