MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing or trojan. Heuristics indicate it functions as a link farm and contains a callback lure, suggesting a social engineering attack. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics point towards a phishing attempt designed to trick users into calling a fraudulent support number.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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 http://putzlappenborner.at/editor_up/85141391830.pdf In PDF document text
- http://xn----9sbbnbtte4cyg.xn--p1ai/ckfinder/userfiles/files/bubanaviwipibubokusodel.pdfIn PDF document text
- http://xn--80aab8aioy.xn--p1ai/userfiles/file/93559310997.pdfIn PDF document text
- http://xn--nellieskche-0hb.de/userfiles/file/4710628632.pdfIn PDF document text
- http://topbuild.net/content/xuploadimages/file/81192844376.pdfIn PDF document text
- https://digitaldaya.com/imagenes/file/supopipamobovul.pdfIn PDF document text
- http://www.ville-dammarie.com/ckfinder/userfiles/files/23078844028.pdfIn PDF document text
- http://wieswioska.pl/userfiles/file/40855210818.pdfIn PDF document text
- http://cariboohose.com/userfiles/file/9946037591.pdfIn PDF document text
- http://benetalent.com/upload/files/vimimalojo.pdfIn PDF document text
- http://ediljolli.com/userfiles/files/89511676575.pdfIn PDF document text
- http://smarttechsolutionukltd.com/uploaded_files/userfiles/files/61309046939.pdfIn PDF document text
- http://aptwash.com/userData/ebizro_board/file/vabufevukox.pdfIn PDF document text
- https://portalbime.com/UploadedFiles/New/file/lakifun.pdfIn PDF document text
- https://corpusbg.com/files/fck/file/14578343249.pdfIn PDF document text
- http://advocaatindex.nl/images/uploads/xiwifitigu.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/94828061603.pdfIn PDF document text
- http://liweisteel.co.th/ckfinder/userfiles/files/29400748577.pdfIn PDF document text
- http://aksaaydinlatma.com/img/editor/image/file/23518186215.pdfIn PDF document text
- https://jagominum.com/contents/files/19144388121.pdfIn PDF document text
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16151a6292ecc7---31972317117.pdfIn PDF document text
- https://kolbandibileklik.com/resimler/files/zaseguwagi.pdfIn PDF document text
- https://drosamahetta.com/userfiles/file/geroripuv.pdfIn PDF document text
- http://anadolumatbaa42.com/genelresimler/file/kajofewevodovenil.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/e666e46585f86181f496cc0ab137e6dd/larupibusowopokip.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=licence+theory+test+practicePDF 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_off0000d0b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0B1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e8c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8C8 | 10496 bytes |
SHA-256: a7e463b46dae1232d22ee7c0510ada4ad1b8dd6e65c11d2083b9742e70a9cab3 |
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font_02_sfnt_off000100a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100A6 | 17940 bytes |
SHA-256: af76b164d6c63b4f9c46e8001a222b779f0b25f2922899ad9d4aa7f524568f31 |
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