MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It functions as a link farm, directing users to various compromised websites and disposable hosting, likely to facilitate the download of further malicious content. The presence of numerous external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly suggest a campaign to distribute malware or phishing pages through deceptive search engine results.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://wastran.ru/uplcv?utm_term=randamoozham+malayalam+pdf+free+download
- http://micronforgacsolo.hu/UserFiles/file/tubibozitasu.pdf
- http://chekeeh.ir/basefile/chekeehir/files/87955441391.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/rk1lemtcc21g1nd2kjl0bh48dl/3403509024.pdf
- http://giasudaihocsupham.com/Images_upload/files/96196473055.pdf
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/cudjd16jg0kotk2ur0mb2s2n55/34883680505.pdf
- https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/5strep2h41jhrg6g760d8efu85/labevoxemumujizeliwaxotaz.pdf
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/vofqc5p7um1ftsrqnh9ak2pbf0/87814743648.pdf
- http://guides2alpes.fr/uploads/file/tepokowidexagizabuli.pdf
- https://jungleflightchiangmai.com/Uploads/files/sukotuw.pdf
- http://anoh.net/pds/userfiles/files/16829747511.pdf
- http://townsendrogersfamilyreunion.com/clients/9/91/912616e09393d205379ff76530a10a1f/File/34574397555.pdf
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/gvvgkcuk3190u56cg7vq8ms3sc/37665430395.pdf
- https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/b7d7e4897bb448bf965885c365406a9f/bupusu.pdf
- http://eastendmediation.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/54603903157.pdf
- http://kokalietudarbnica.lv/files/files/vanefigonanosikuteni.pdf
- http://famillespourstarlight.ca/clients/a/a9/a9b42c05011d3bb27e7f7ec2ed30324f/File/32646784902.pdf
- http://www.ecvbrass.ch/user/web/file/niwetejevodiponok.pdf
- http://ankaser.com/userfiles/file/98319531660.pdf
- https://alarrabnews.com/images/content/content/file/17490820373.pdf
- http://novosib-sport.ru/ckfinder/userfiles/files/lejagadivemaxovafuj.pdf
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076399393287---bipubitozafi.pdf
- https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/bba70b5de76cc264fed534f3dce5406f/tinejesitadigi.pdf
- https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/c9ab6c22521ec8d8da15ac7176bae5b6/zazelupajudalajadatepi.pdf
- https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/8c3547fdfbdbbc321cd0dbc3c966ad5d/tunevijonirexef.pdf
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/2b29e97321635ccaee74765df76cf8b1/14893108222.pdf
- http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/37267153466.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_off0000e2dd.binbea1c6b2d967a904979d7e078094b84156a7c7a5d4f49c1babd1fe289bf732dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2DD | 10708 bytes |
font_01_sfnt_off0000fb50.bin2634e34fc27a5e36da394b96ab7f6e8a3e5a8b554529e4220dc7bbc1dc6679b9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB50 | 17404 bytes |
font_02_sfnt_off000128f0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128F0 | 16792 bytes |
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