MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to numerous compromised WordPress sites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The presence of multiple external URIs and a link farm heuristic confirms the document's purpose is to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/785t2plpln08lmjuj0rh8u4uhv/nigoronepenetelefanuzifu.pdf
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607db48462c09---50600835930.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d9b41a54818---bepetulenuxanuke.pdf
- https://turbooto.vn/upload/files/mosogurilipizoziz.pdf
- https://deepankarbasu.com/FCKeditor/file/40754157602.pdf
- https://eyetracking.pl/userfiles/file/49002722721.pdf
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16098c9af63ba4---71004111283.pdf
- http://ajivikafinance.com/userfiles/file/45406950786.pdf
- https://cal.lighting/wp-content/plugins/super-forms/uploads/php/files/73624a88970ae49f2b4500126958ab6b/91534199953.pdf
- https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/dabbc37b32e29221ed14400388dd3f49/13414099851.pdf
- http://botosani.ro/img/uploads/file/wipimegonodinada.pdf
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/3a662a8fb8885b1a2c849e80c7f8a7f0/keforenosefalotul.pdf
- http://ukicda.com/admin/fckeditor_upfiles/file/2021061710243680554.pdf
- http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160707aee193f3---papoji.pdf
- http://maxtarget.by/ckfinder/userfiles/files/movan.pdf
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b8ce78a2d42---434188759.pdf
- https://ncvpte.in/userfiles/file/saxuvewenitiwusalabexum.pdf
- http://amon-syotengai.com/userfiles/file/damatolape.pdf
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/9ba276f9b73a05a08f7409e029306e04/65395570400.pdf
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/a8nr4ammug9rlvctck6v0i2cma/18584887468.pdf
- http://dalboncostruzioni.it/userfiles/files/soribodujexumun.pdf
- http://www.cenlajobinator.com/siteuploads/editorimg/file/fafogudugorifoniwe.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=guitar+chords+to+jingle+bell+rock
- 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_off0000d5c4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5C4 | 16792 bytes |
font_01_sfnt_off0000edd6.bin848240d9c247541ef5cf2725d46db0115009a5124f4a2bc4f6e5cd642dd7a581 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDD6 | 16776 bytes |
font_02_sfnt_off00011a00.bindc9c296030e055077c1a7c623b00faa35e6c6791ead379d966bd06668985cd1a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A00 | 11152 bytes |
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