MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a malformed exploit stream. It contains numerous embedded URLs, many of which point to potentially malicious domains, suggesting a phishing or credential harvesting attempt. The PDF's structure and the presence of exploit-related heuristics indicate it's designed to leverage a client-side vulnerability for execution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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://fonixkoncert.hu/upload/file/moduli.pdf In PDF document text
- http://icsbc.ru/fuploader/file/difolerovofokazosoloba.pdfIn PDF document text
- https://securitydm.com/slicice/file/menuzaj.pdfIn PDF document text
- http://niezapominajkowo.eu/userfiles/file/75325091117.pdfIn PDF document text
- http://richmediahouse.com/admin/uploads/file/79856055396.pdfIn PDF document text
- https://pilot-nav.socksnbows.com/ckfinder/userfiles/files/dujumaku.pdfIn PDF document text
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/dc0ed7f88a6b5a5979978b611b781ec8/jeduwajal.pdfIn PDF document text
- http://rooptex.com/uploads/refeferanilimaso.pdfIn PDF document text
- https://rinducm1.com/contents/files/68770395078.pdfIn PDF document text
- http://cascinamana.it/userfiles/file/74527977209.pdfIn PDF document text
- http://efuturesthai.com/uploads/files/43621552627.pdfIn PDF document text
- http://mfcwestenkwartier.nl/beta/userfiles/file/jevanadapa.pdfIn PDF document text
- http://thaimassagemodel.com/ckfinder/userfiles/files/96310037869.pdfIn PDF document text
- http://auxerretv.com/content/public/file/sasekiganomuli.pdfIn PDF document text
- http://smartvoicecom.com/userfiles/tebegejitoxoluv.pdfIn PDF document text
- http://wedooverseas.com/userfiles/file/nazotelezasapakebeliwiko.pdfIn PDF document text
- http://dsacare.com/admin/uploads/file/nogurutobade.pdfIn PDF document text
- https://abisspaandboutique.com/nbloom/fckuploads/file/xurun.pdfIn PDF document text
- http://highspiritsmusic.com/ckfinder/userfiles/files/nalesubon.pdfIn PDF document text
- https://suncables.co/images/file/sisemotijedovewew.pdfIn PDF document text
- https://consurs.ro/ckfinder/userfiles/files/9186333626.pdfIn PDF document text
- http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139bdc9e4a29---pavilozagurezanopi.pdfIn PDF document text
- http://homestayhoian.vn/uploads/image/files/fudolisemonej.pdfIn PDF document text
- http://effekt-film.de/files/file/92673693189.pdfIn PDF document text
- https://ubitanduk.com/contents/files/8345395812.pdfIn PDF document text
- https://lose-weight.tw/upload/files/58958337548.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=countdown+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_off0000b6f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB6F0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cf02.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF02 | 16240 bytes |
SHA-256: 9456b98ceb78fad0d7ccf83df9f46bda28b9573549c9337e39b8d21645dc2a99 |
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font_02_sfnt_off0000f906.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF906 | 10112 bytes |
SHA-256: b4def4773320493686f4031d60919a1e79464031ef940a4fac1926c63d6ae9e1 |
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