MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing or trojan variant. Heuristics indicate it functions as a link farm, pointing to numerous URLs hosted on compromised WordPress sites and disposable domains. The primary purpose appears to be directing users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9914
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 http://anhuishangbiao.com/upload_fck/file/2021-7-7/20210707194334398920.pdf In PDF document text
- http://ahcxdq.com/uploads/file/291953584033.pdfIn PDF document text
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/70833195242c3a994ea7bd8c5fe47f1c/50271015532.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/ujj0111ojh1fftr00dtkleia74/9600989175.pdfIn PDF document text
- https://aawyx.com/sites/default/imageuser/file/24598588303.pdfIn PDF document text
- http://ever-pioneer.com/upload/files/18975647611.pdfIn PDF document text
- https://wccia-vastu.com/wp-content/plugins/super-forms/uploads/php/files/2733ccd534e6060eb524618c910a0214/xezanibab.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/3bs33rkrn8hr0umcm3varja3d0/28400775779.pdfIn PDF document text
- http://ahcxdq.com/uploads/file/29230033463.pdfIn PDF document text
- https://aimhc.com/userfiles/file/xuketopuzufamejazareguzo.pdfIn PDF document text
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/30202e8179354dea65aec7ac9a2285d9/60618079926.pdfIn PDF document text
- https://jaukiaplinka.lt/ckfinder/userfiles/files/ruvulezal.pdfIn PDF document text
- https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/7bbbce082a2cdb7e5eb4914ea23619c1/4116155990.pdfIn PDF document text
- https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/29bfb2f142608bcc45cd9429047a14f5/femoveza.pdfIn PDF document text
- https://bestofbucerias.com/upload/file/62945804975.pdfIn PDF document text
- http://ferramentabelleggia.it/public/file/tamurulij.pdfIn PDF document text
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16089d379cb84f---favakiwora.pdfIn PDF document text
- https://salvamontbihor.ro/app/webroot/files/userfiles/files/liludiroto.pdfIn PDF document text
- http://bike-aholic.com/UserFiles/file/4131182047.pdfIn PDF document text
- http://sillajen.com/fckeditor/_upload/file/98330359171.pdfIn PDF document text
- https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/oj5ialq3pr472b57psg80lbkl8/6139652452.pdfIn PDF document text
- http://irishvaughans.com/clients/7/7c/7cfe0b8ff6d5e3136a6575a9b258a09c/File/37986348699.pdfIn PDF document text
- https://digireg.se/upload/lizemagebo.pdfIn PDF document text
- http://www.azurwelcomeservices.com/userfiles/file/90979123397.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076189dc2b30---zanap.pdfIn PDF document text
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16072c2d05c65b---fenomemuled.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=blynk+apk+modPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f730.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF730 | 18016 bytes |
SHA-256: ced458df63a40d770b960e2ec2ddc0543f2dc999777579722ed0e88666b21fd0 |
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font_01_sfnt_off00012559.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12559 | 10224 bytes |
SHA-256: 188b42fc2f35168cfe2258dbcbe5b6156246431e708405f7d40137f6397e2807 |
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font_02_sfnt_off00013c39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C39 | 16092 bytes |
SHA-256: 9d5144547e0b729630886a3ad3ce48e7da84b0115899dd9c2390406af6f0fecd |
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font_03_sfnt_off0001517e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1517E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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