MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, indicating a malicious intent to redirect the user or execute code. The 'SE_CALLBACK_LURE' heuristic strongly suggests a callback phishing or tech-support scam pattern, aiming to trick the user into calling a fraudulent number. The ML classifier and ClamAV detection further support the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://katour.ru/admin/ckfinder/userfiles/files/2724647659.pdf In PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16131ce4762aff---jegarojonox.pdfIn PDF document text
- http://hmondo.com/userData/board/file/24143405345.pdfIn PDF document text
- http://vankouwenenmastop.nl/UserFiles/file/lejepukixolavepavo.pdfIn PDF document text
- https://htchninc.com/d/files/viwazuwe.pdfIn PDF document text
- http://gr-chem.com/upload/files/lonolidufigusomimad.pdfIn PDF document text
- http://softtox.com/new/userfiles/file/58754568461.pdfIn PDF document text
- http://loaamtran.vn/files/usersfiles/files/mekepifazekilalek.pdfIn PDF document text
- https://youkuvpn.com/upload/files/guregevoxefuxigekin.pdfIn PDF document text
- http://www.yoko-ono.be/images/userfiles/file/98523374171.pdfIn PDF document text
- https://agape4u.org/userfiles/file/15611001090.pdfIn PDF document text
- https://studybrilliant.online/app/webroot/img/userfiles/file/4827348034.pdfIn PDF document text
- http://kammed.com/userfiles/file/julamoz.pdfIn PDF document text
- http://tverzhilservis.ru/foktver.ru/ckfinder/userfiles/files/nuxosatodimisaguwaso.pdfIn PDF document text
- http://lidaoxc.com/upload/files/danibisijawivimanoz.pdfIn PDF document text
- http://kayamedbursa.com/userfiles/file/16789518257.pdfIn PDF document text
- http://henzefashion.com/userfiles/file/71057722579.pdfIn PDF document text
- http://lex-ter.ru/admin/ckfinder/userfiles/files/43326691231.pdfIn PDF document text
- http://nuestratierrapremios.com/campannas/file/48015401613.pdfIn PDF document text
- http://doctour.hu/uploads/ckfinder/userfiles/files/zelebirusopeluwefasijan.pdfIn PDF document text
- http://hz-kontejnery.cz/ckfinder/userfiles/files/lipudit.pdfIn PDF document text
- http://sonnenheizungen.ch/fckeditor/editor/images/file/dubeg.pdfIn PDF document text
- http://luxlustry.ru/img/upload/12228188537.pdfIn PDF document text
- http://www.msjcongregation.org/www/js/ckfinder/userfiles/files/33124248789.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613d32c75f060---76208047738.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=how+to+delete+spam+messages+on+androidPDF 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_off0000d340.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD340 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000eb57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB57 | 10812 bytes |
SHA-256: 807b28094fad02823f4e23fa2dab99fc85c11b49e3b3210f74732884541ae2d3 |
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font_02_sfnt_off00010405.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10405 | 18020 bytes |
SHA-256: 61a57d0c77feaa54c2a5696358177de693104365e3ddb9089444059331fafe30 |
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