MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as a malicious PDF by ClamAV and an ML classifier. Heuristics indicate it is a payment redirection lure, suggesting a business email compromise (BEC) attack. The PDF contains numerous links to other PDF files hosted on various domains, likely serving as a link farm to obscure the ultimate malicious destination. No scripts were extracted, but the nature of the lure and the presence of multiple external links strongly suggest an attempt to trick the user into downloading a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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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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://horkolas-gatlas.hu/ufiles/file/20373762695.pdf In PDF document text
- http://synergienetwork.net/userfiles/file/latepivogunumafolesun.pdfIn PDF document text
- https://listapp.in/ci/userfiles/files/metetuxetiburawilusu.pdfIn PDF document text
- https://wodepcb.cn/uploadfiles/files/58217441229.pdfIn PDF document text
- http://ngocphuocjsc.com/public/default/ckeditor/files/bixeragadixuzejigitugurol.pdfIn PDF document text
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/161370b478ba72---47083484117.pdfIn PDF document text
- http://aviatechinform.ru/sadm_files/75844929286.pdfIn PDF document text
- http://domuran.pl/files/file/19571594657.pdfIn PDF document text
- http://tamtamphat.com/upload/files/vusunijeletekipive.pdfIn PDF document text
- https://liepasmuiza.lv/userfiles/library/14696222543.pdfIn PDF document text
- https://lesrimaudieres.com/images/uploads/file/65222749421.pdfIn PDF document text
- https://rarahil.org.np/ckfinder/userfiles/files/fomapuluvegekoxow.pdfIn PDF document text
- http://123flower.doweb.kr/upload/files/75165761155.pdfIn PDF document text
- https://vico-domrep.com/ckfinder/userfiles/files/jimabuxusujikedi.pdfIn PDF document text
- http://spec-so.ru/sites/default/files/file/46969594144.pdfIn PDF document text
- http://constantcontinuity.com/membership/data/files/fufelaxutojawet.pdfIn PDF document text
- http://cityfate.com/files/files/72548115647.pdfIn PDF document text
- http://balletpanov.com/uploads/files/balelibomu.pdfIn PDF document text
- https://przyklejki.pl/userfiles/19411787891.pdfIn PDF document text
- https://kitchensofdiablo.com/upload/file/77764444161.pdfIn PDF document text
- http://marjoleintje.nl/include/userfiles/808752562.pdfIn PDF document text
- http://kelkenaghshband.com/app/webroot/img/files/70432235236.pdfIn PDF document text
- http://cuacuonanbinh.com/userfiles/file/xudazaxejaniv.pdfIn PDF document text
- http://ofitecnic.es/files.ofitecnic/fck_up/file/lepovasarakaradi.pdfIn PDF document text
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/06d4ecd10d8034720ea2629521fdbdfe/85686611078.pdfIn PDF document text
- https://predial-rua-nova.pt/056-CovadaLua/images-editor/file/tamilamefofoxidasubepades.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=sync+phone+to+another+phonePDF 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_off0000d831.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD831 | 18768 bytes |
SHA-256: f401a3c8e0e7e935871ae35cbf9ee8662829083479e10cbc0cf756d16eaddc05 |
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font_01_sfnt_off000108c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108C8 | 10352 bytes |
SHA-256: 2f6de3c4bf14ad09d80687e477775af648ce6fdae8caf97c68c6cc69c7fd129a |
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font_02_sfnt_off00012025.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12025 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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