MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by multiple heuristics, including PDF_RANDOM_URL_LINK and PDF_SEO_DISPOSABLE_LINK_FARM, indicating a high likelihood of malicious intent. The presence of numerous external URLs, many pointing to potentially disposable domains, suggests a phishing or malware distribution scheme. ClamAV detection further supports the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://dycmc.com/DATA/upload/files/202109090810046835.pdf In PDF document text
- http://didopack.com/files/feruz.pdfIn PDF document text
- https://rajaunited.com/contents/files/bufigefafaropuga.pdfIn PDF document text
- https://polresseluma.com/assets/ckfinder/core/connector/php/uploads/files/meronidoduburesudon.pdfIn PDF document text
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143d6d7e2923---86650222604.pdfIn PDF document text
- https://n-tlg.com/files/file/49877269660.pdfIn PDF document text
- https://markyatirim.com/resimler/files/98616869571.pdfIn PDF document text
- http://aytekinpolatel.com/image/files/39664311279.pdfIn PDF document text
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/f2c8ad7738407a8db5219ef96e0fabfc/naxabikozofu.pdfIn PDF document text
- https://icoachyou.biz/images/ckeditor/files/tefojiwojegewekug.pdfIn PDF document text
- http://lucidareemantenerepavimentifaidate.it/userfiles/files/litodu.pdfIn PDF document text
- https://careersourcechipola.com/files/public/74044276523.pdfIn PDF document text
- https://sieuthimaytinhcu.vn/upload/files/97275925870.pdfIn PDF document text
- http://zabradli-znerezu.cz/userfiles/file/fenujasorekesafi.pdfIn PDF document text
- http://khachsansapa.vn/webroot/img/files/rerokor.pdfIn PDF document text
- http://fukaofoods.tw/uploads/files/202109030537378021.pdfIn PDF document text
- https://ykitraders.com/UserFiles/file/77207609987.pdfIn PDF document text
- http://kocavietnam.com/upload/files/xasomibuxaxisevubawululag.pdfIn PDF document text
- http://sitarofindiamd.com/userfiles/file/53176596115.pdfIn PDF document text
- https://canevastoilestjean.com/upload/editor/file/dikuro.pdfIn PDF document text
- https://academiapreprod.riportico.com/userfiles/files/69925791126.pdfIn PDF document text
- http://amindoost.ir/images/upload/files/23146581412.pdfIn PDF document text
- http://yizhu580.com/ckfinder/userfiles/files/jebesuxugex.pdfIn PDF document text
- https://ice-group.pl/userfiles/file/xinuwapebi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=pdf+the+selectionPDF 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_off0000b44f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB44F | 10312 bytes |
SHA-256: 0380d25b655c3331beb6d178d3b7705055231e68eeef2e44783fb71e67743411 |
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font_01_sfnt_off0000cb7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB7A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e38c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE38C | 17524 bytes |
SHA-256: d35cdbed2f48a557df045fb1243011c946511b175bc8a249768f8d062a0d92e4 |
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