MALICIOUS
206
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged by a machine learning classifier and ClamAV as malicious. Heuristics indicate it presents a fake CAPTCHA or human verification prompt and a payment redirection lure, suggesting a phishing or business email compromise attack. Multiple external URIs were extracted, with one pointing to a PDF hosted on a potentially disposable domain, further supporting the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHADocument displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LUREDocument describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
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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://nsck-cykelmotion.dk/ckfinder/userfiles/files/zugipifegifuk.pdf In PDF document text
- https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/0bd970bf105f76a7a15e367e4c1505bd/reroxojuxodune.pdfIn PDF document text
- http://ok-poland.com/userfiles/file/83573963656.pdfIn PDF document text
- http://obraz-tlt.ru/userfiles/file/nodis.pdfIn PDF document text
- https://confidence-ist.com/ckfinder/userfiles/files/fabunawevapal.pdfIn PDF document text
- http://castel.lu/userfiles/files/fimemuxuga.pdfIn PDF document text
- https://recrut.com/files/files/6626105373.pdfIn PDF document text
- http://ozcetinler.com/userfiles/file/segodexubuwobifisop.pdfIn PDF document text
- https://shen-su.eu/gfx/userfiles/files/muzarelope.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/96c4aef41d95eb851341f1e5335ed9c1/velawe.pdfIn PDF document text
- https://cahayamimpi1.com/contents/files/gazupitiwonibik.pdfIn PDF document text
- https://branchennachweis.eu/userfiles/file/32172662772.pdfIn PDF document text
- http://dfanchem.com/upload/files/54564155677.pdfIn PDF document text
- https://planet-pvc.com/upload/files/befajitememadagejo.pdfIn PDF document text
- https://kurishupally.org/userfiles/file/diwemimiweweg.pdfIn PDF document text
- https://univerosg.com/ckfinder/userfiles/files/99028822138.pdfIn PDF document text
- http://makassitools.com/userfiles/file///somaxunogirijunoxajosifen.pdfIn PDF document text
- http://angelascanu.it/uploads/file/buxojaxisumevekipimog.pdfIn PDF document text
- https://jazykovytabor.topenglish.sk/app/webroot/gallery/files/tubasedove.pdfIn PDF document text
- http://tnslib.su/userfiles/files/milimuputizebabatuxidupit.pdfIn PDF document text
- http://bbfederico2.net/userfiles/file/sikopuraxozugoxiwatu.pdfIn PDF document text
- http://sapaelitehotel.com/webroot/img/files/89862231411.pdfIn PDF document text
- http://www.lbtfilm.com/uploads/files/8268341935.pdfIn PDF document text
- http://tfforming.ru/d/files/10148340712.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=diamond+in+ml+apkPDF 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_off0000dbbf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBBF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f3d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3D1 | 18080 bytes |
SHA-256: f855c8d38242b1a5b98ca7c5fe1fca2a18c9eb6af0dbe529887376ef768f46ae |
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font_02_sfnt_off00012277.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12277 | 10148 bytes |
SHA-256: 6b2de70f246ff016138bf0e9de4fbaa6d57a4dfb00aa478cdd3415b90d748a98 |
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