MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to compromised websites and disposable hosting, suggesting a link farm designed to redirect users. The heuristic firings indicate these links are likely used for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://inwebjor.ru/uplcv?utm_term=remove+certificate+authority+android PDF link annotation
- http://businessvaluationapp.com/fck_files/file/zubulagituzakuredel.pdfIn PDF document text
- http://btfa.tw/upload/files/tusaxu.pdfIn PDF document text
- https://fnb-concepts.com/images/uploads/files/fares.pdfIn PDF document text
- http://csc-0411.com/userfiles/file/20210914073736_eke1jb.pdfIn PDF document text
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/8fa3a9e91f75e119a9dc6b6b9bb3c8d4/20199256759.pdfIn PDF document text
- http://chornakorn-packing.com/ckfinder/userfiles/files/83700289349.pdfIn PDF document text
- https://vegas-shop.net/uploads/files/45636644926.pdfIn PDF document text
- https://ever-progress.dacola.com/upload/files/72861964261.pdfIn PDF document text
- https://campermagazine.tv/public/file/tujupemuzibukusowuvofusu.pdfIn PDF document text
- http://xinshifm.com/userfiles/file/solalexurijitonemezi.pdfIn PDF document text
- http://kancelaria-perfect.pl/app/webroot/media/files/petopupolazuputobin.pdfIn PDF document text
- http://xfswchem.com/upload/files/dadujewimek.pdfIn PDF document text
- https://nabil-doukali.com/userfiles/file/bujuboxudap.pdfIn PDF document text
- https://gfwofficial.com/ck_imgs/files/60188335695.pdfIn PDF document text
- http://creativeindustries.ru/uploads/userfiles/file/5543508259.pdfIn PDF document text
- http://104408017.linker.tw/files/negupipugamukur.pdfIn PDF document text
- http://dreamsurgerycn.com/ckupload/files/80906625817.pdfIn PDF document text
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16139f6ac5524b---18141464277.pdfIn PDF document text
- http://mail-ex.net/userfiles/file/zalalijafotak.pdfIn PDF document text
- http://skpizzasubs.com/uploads/files/88058528490.pdfIn PDF document text
- https://labelmarket.eu/data/file/72361470855.pdfIn PDF document text
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f090d1ea7e---wexijopi.pdfIn PDF document text
- http://3dtechgroup.com/uploads/image/files/wuxidapenaxoxabodafabim.pdfIn PDF document text
- http://sigmabhp.pl/userfiles/file/13785484604.pdfIn PDF document text
- 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b477.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB477 | 14512 bytes |
SHA-256: 30439bcb242e9e52981b519b13f9dbdfa6bbd28bea5c2a4b3c10425a536d98b4 |
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font_01_sfnt_off0000d932.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD932 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f149.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF149 | 10852 bytes |
SHA-256: 2b71d206ab611397a54749f93382e66307fa52f7a0e97be5dbd176966ae1d423 |
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