MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely a phishing lure or a downloader for further payloads. No scripts were extracted, but the heuristic firings point to a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/boirapuu3chpuh2k6bbkqmo9r1/takotojenudotuvawe.pdf In PDF document text
- http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c969fba6e49---nazikedemoguxomigotoxojum.pdfIn PDF document text
- https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098389d573c1---4819920726.pdfIn PDF document text
- http://servmed.net/userfiles/file/88542706055.pdfIn PDF document text
- http://mobilephleb.com/clients/2/2d/2d2188d13063160162e6e2bbcdac547d/File/35811906321.pdfIn PDF document text
- https://abe-rdc.com/userfiles/file/89655662629.pdfIn PDF document text
- http://msslink.ru/userfiles/files/33855701953.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/altmi4uvisgs5003sdlls4gua5/zukowuleva.pdfIn PDF document text
- http://adabaskimerkezi.com/upload/file/bokod.pdfIn PDF document text
- http://toonesk.com/upload/15190312560.pdfIn PDF document text
- http://thestarbusan.net/FileData/ckfinder/files/20210603_D780556495533F5B.pdfIn PDF document text
- http://cs-golfclub.com/ckupload/files/wixujazowebusa.pdfIn PDF document text
- https://hondamienbac.vn/userfiles/file/bekugonusumuzudokonesa.pdfIn PDF document text
- https://aduanaldelvalle.com/userfiles/file/47462364900.pdfIn PDF document text
- http://techscreening.com/userfiles/files/67658660446.pdfIn PDF document text
- http://www.aamuhsv-madisonalumni.org/files/files/53524457724.pdfIn PDF document text
- http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092e5dad4cc1---bafevivulomirenarez.pdfIn PDF document text
- http://hanlacsclub.com/ckupload/files/vavuvutituvofekonetew.pdfIn PDF document text
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/5b298dd6d21c7f136ea5811a7f69f8ce/zaragokeme.pdfIn PDF document text
- https://skinrepublic.vn/webroot/img/files/wijuzupugesuburegov.pdfIn PDF document text
- http://osc-pribor.ru/products_pictures/file/nalafasejesexifulekexa.pdfIn PDF document text
- http://ugrctrani.it/userfiles/files/dularose.pdfIn PDF document text
- http://df-foundry.net/d/files/26173423284.pdfIn PDF document text
- http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/plu8e64a57o2ldlcj26193euj5/binotejonolopuwe.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=production+planning+and+inventory+controlPDF 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e801.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE801 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010018.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10018 | 10804 bytes |
SHA-256: 678f6064db9585c2bf4101e008cbd6f3d58615fa4997bc8f5575ec89caa63fd8 |
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font_02_sfnt_off000118ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118EA | 16244 bytes |
SHA-256: fe507063c11a49e49bcd5bf7391dc542b73ca3f028130c7643693ecf7f8867ec |
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