MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this document is designed to host a collection of links to malicious sites. The embedded JavaScript likely facilitates the redirection or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://csa.china-led.net/static/editor/ckeditor/ckfinder/upfile/files/suziveva.pdf
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b761bf82660---12240228181.pdf
- http://etabetasurvey.com/userfiles/files/73624503358.pdf
- http://beulahcooleycollection.com/clients/870349/File/govexesatama.pdf
- http://parkhighclassof60.com/clients/871169/File/19131144049.pdf
- https://3drm.bg/uploads/pictures/files/wozasigugafuzuli.pdf
- http://challendor.com/fckeditor/upload/file/12449640701.pdf
- https://promise-land.com/upload/file/gurufazebun.pdf
- https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/45fd91966fc834d2aaf991ee4d06a680/tagojamomuxenakegeza.pdf
- http://blow-w124.com/js/upload/files/xiboxemolerivavedavu.pdf
- http://mdfgiare.com/upload/files/77886135943.pdf
- http://dienlanhtruongson.com/upload/files/32909889076.pdf
- https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/1325e82fdf10b9ade164809e0e93753e/xodeperokum.pdf
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c2c0680ac58---36068092497.pdf
- https://iohrp.org/f_files/files/64724527565.pdf
- http://vicorsupply.com/uploads/images//files/bixewene.pdf
- http://belst.by/upload/file/rekemumakuf.pdf
- https://eqonetech.com/upload/userfiles/files/89313415366.pdf
- http://mkngsp.ru/upload/files/63514970446.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/r0t6sqphnttvf06rk540kvbt8b/89053677660.pdf
- http://ksnjl.com/userfiles/files/81818072530.pdf
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/fc757321ffc12d51906cd030b7bc0d87/72363101352.pdf
- https://giriconsultancy.com/content_files/files/92723941348.pdf
- http://ghibms.com/userfiles/files/11602844927.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=past+form+of+put+verb
- 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 |
|---|---|---|---|
font_00_sfnt_off0000f69b.bin3058e574178e89031eada0feeb7d9fb1ff062d1575194ab08f3154d6a7c26e00 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF69B | 2936 bytes |
font_01_sfnt_off000102b2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102B2 | 16792 bytes |
font_02_sfnt_off00011ac9.bin126d8cf28917dbc69b50cd9e1eba590b1a28eea36925fd990d06bed5ed5c5e53 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AC9 | 10584 bytes |
font_03_sfnt_off000132dc.binb5acec70a91e11a51883a0901957d4d282677df3967838d11bba751ddf916db5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132DC | 16492 bytes |
font_04_sfnt_off000149e0.bin39e4aea39f66f804d834876b482938b86f414f2af39c97765c08a4d049d5aac6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x149E0 | 21800 bytes |
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