MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple compromised CMS upload locations and disposable domains, which is a common tactic for phishing or distributing further malware. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a malicious lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://oniceh.ru/uplcv?utm_term=electromagnetic+methods+in+geophysics
- http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/b898f1d10c3401ba7c84ca676d83b401/tipubipuvapesadawinu.pdf
- http://anaminfo.com/attachfile/file/20544308268.pdf
- https://lawina-radom.pl/files/file/loruv.pdf
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/09cb9a8828a8b478c30ef21cd47dca07/zulenexemobebelej.pdf
- https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd9bf62c71f---savibox.pdf
- http://nordicaluminium.ru/userfiles/file/wafajafog.pdf
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/16078383d0ba3d---94056125688.pdf
- http://srihemkuntschoolint.com/slbdavbatala/userfiles/file/38874730657.pdf
- http://aksaxena.com/bpms/includes/fckeditor_uploads/userfiles/file/18192652536.pdf
- https://hssipm.com/wp-content/plugins/super-forms/uploads/php/files/ab5e4451724891456e4175d135a95d86/ketipamudagoza.pdf
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/5844e80406bd27e01478e74560aaa038/31414124177.pdf
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083e5e043b04---19568189681.pdf
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/9cv744b6snocvv46n9nhhhc8q6/9504346653.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16073e02a85bee---pelozunemubugumebupifej.pdf
- https://rts-wm.com/ckfinder/userfiles/files/99889196578.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c94df42f1e3---47671015003.pdf
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/8fc595fccec5e07f96cfcbcd6a94659d/36000847932.pdf
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/kd98qol04regderc7akh3m1svh/10494492151.pdf
- http://alphabodysupplements.com/newerac2c/userfiles/file/xolibewapi.pdf
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0991b4c7b7---xupolinenibajesoziwekori.pdf
- http://cuuhoatudong.com/upload/files/21426660905.pdf
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aa6341654f9---62576184584.pdf
- http://francescofesta.it/userfiles/files/11043555791.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_off0000d1a6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1A6 | 16792 bytes |
font_01_sfnt_off0000e9bd.bina252b7f20288f207c63d4139732c9495650d1f61c1dd3a4e6d31c9acb9ed53af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9BD | 11056 bytes |
font_02_sfnt_off00010314.bin05e9a5e5c8603bb5f8b4718e25ad1f7b772839f05e82c4262ff28ae9b582ef12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10314 | 16236 bytes |
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