MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by multiple heuristics as malicious, including a high-severity PDF_RANDOM_URL_LINK and ML_NYX_PDF_MALICIOUS. The presence of numerous external URIs, many pointing to potentially disposable domains, suggests a phishing or malware distribution attempt. The ClamAV detection further supports the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://inwebjor.ru/uplcv?utm_term=wwe+psp+games+download+for+android PDF link annotation
- http://thementalhealthadvocates.org/files/userfiles/file/wexerugejiburalofogeme.pdfIn PDF document text
- http://studiotecnicopinto.it/userfiles/files/pudexefodevasum.pdfIn PDF document text
- https://allcreaturesinc.com/files/files/50034037869.pdfIn PDF document text
- http://moderncarrent.com/user_img/files/19916868079.pdfIn PDF document text
- http://daegyung.kr/userfiles/file/20210906164818.pdfIn PDF document text
- http://sjhtractor.com/d/files/15663733376.pdfIn PDF document text
- http://savytrading.com/userfiles/file/61497221582.pdfIn PDF document text
- https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613d08a036626---wudagirapoki.pdfIn PDF document text
- https://livresdarts.com/ckfinder/userfiles/files/jasowozexemujeme.pdfIn PDF document text
- https://renhedc.com/uploads/files/202108311916058182.pdfIn PDF document text
- http://caerulumpharma.com/upload/files/fokedinis.pdfIn PDF document text
- https://www.traitagri-solutions-alternatives.fr/ckfinder/userfiles/files/wurosivakumadesaliz.pdfIn PDF document text
- https://vanphongphampmc.com/upload/files/90486003956.pdfIn PDF document text
- http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/63028295199.pdfIn PDF document text
- https://franciscovalles.comtraining.cl/userfiles/files/50652075372.pdfIn PDF document text
- http://didaconcept.com/admin/fckeditor/file/zimizipipab.pdfIn PDF document text
- http://minipit.com/data/files/45261331991.pdfIn PDF document text
- http://wgadget.com/file_media/file_image/file/nemepejijasiz.pdfIn PDF document text
- https://laps.pl/userfiles/file/mobudigifadow.pdfIn PDF document text
- http://snailgame.ru/upload/files/20210904020008.pdfIn PDF document text
- https://aquatrustfina.com/userfiles/file/metuvodoxemosifirazo.pdfIn PDF document text
- http://escalierdurire.fr/ckfinder/userfiles/files/48894900964.pdfIn PDF document text
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/upl2ccnmdd6t35cdelgg069r7g/kutixowedizusik.pdfIn PDF document text
- 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_off0000da5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA5C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f273.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF273 | 10820 bytes |
SHA-256: 6fe0a9b9467ff4c7674fed406fbcaf3f3cfb54ede13a627a6a7b9257a9c453ea |
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font_02_sfnt_off00010b27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B27 | 17756 bytes |
SHA-256: 73023422b064312c80cf8098077d4c7e0f184e2216604945e15537d7ae144777 |
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