MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of external URI links and the overall structure indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
Heuristics 6
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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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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://ketchas.ru/uplcv?utm_term=spear+of+justice PDF link annotation
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a602253804d---12692486052.pdfIn PDF document text
- https://minlinart.com/archive/upload/files/51342936408.pdfIn PDF document text
- http://studioagm.it/userfiles/files/wevisutanowikiwuwufabov.pdfIn PDF document text
- http://king-ber.com/UploadFiles/file/20210629203130156.pdfIn PDF document text
- http://khiconghoixuancong.com/Khicong/admin/userfiles/file/wapedakinapudana.pdfIn PDF document text
- https://serwisnawigacji.pl/userfiles/file/54105368356.pdfIn PDF document text
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16078de0c86ed4---7670875078.pdfIn PDF document text
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/589nna8j3si83pslj5o0aoblg1/71296294618.pdfIn PDF document text
- http://vhshf.de/File/newijelufuxudobijomu.pdfIn PDF document text
- https://smartcrm.cloud/upload/files/61379647816.pdfIn PDF document text
- http://shangrilayunnan.com/ckfinder/userfiles/files/vetonunimoxoketugifi.pdfIn PDF document text
- https://groupunsur1.com/contents//files/bakufoboginafufonusoj.pdfIn PDF document text
- http://kppzp.pl/userfiles/file/59043854344.pdfIn PDF document text
- http://ambvetesopo.eu/userfiles/files/68583865075.pdfIn PDF document text
- http://studiodebiaggi.eu/userfiles/files/41143569580.pdfIn PDF document text
- https://shiokuda2.com/contents/files/piruzomex.pdfIn PDF document text
- http://peusch.lu/userfiles/files/27323078148.pdfIn PDF document text
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/f35c0eff56b258e01c010a346e60fc15/52918847384.pdfIn PDF document text
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608e80287d159---wimusipemoziresawa.pdfIn PDF document text
- http://winso.tw/userfiles/file/20376962388.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160dc0943e6898---valijinepowuvuxalebivapij.pdfIn PDF document text
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c8890e1f312---53836673633.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_off0000c137.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC137 | 17332 bytes |
SHA-256: 5d8ccc1de13ea04ca5a6dbac6d2ee3ff6efdb0b9432c38d866952083dca089cf |
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font_01_sfnt_off0000ee6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE6F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010686.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10686 | 10628 bytes |
SHA-256: f10d3352a8cca9ad701ee171615a4fabd41af82b46a5875c98d70b8cd3d9d80a |
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