MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains a large number of embedded URLs, many of which point to disposable hosting and are structured as link farms, suggesting a phishing or malware distribution campaign. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
Heuristics 5
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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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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://ketchas.ru/uplcv?utm_term=vocabulary+workshop+level+blue+answer+key+pdf PDF link annotation
- http://tienphat.vn/imagesflashupload/file/tijokikoxi.pdfIn PDF document text
- https://booking-news.hkdnracing.com/webroot/editor-uploads/files/59809746972.pdfIn PDF document text
- http://oldmotorsclub.com/files/file/jedeniperasimivif.pdfIn PDF document text
- http://marketingnews.fr/images/file/10053525869.pdfIn PDF document text
- http://abbuffalowings.com/uploads/files/85886716797.pdfIn PDF document text
- http://bdpq.hungminhits.com/files/uploaded/files/tekefavuw.pdfIn PDF document text
- https://ville-saintleonard.fr/pdf/tinal.pdfIn PDF document text
- http://music-saikung.com/ckfinder/userfiles/files/36378870752.pdfIn PDF document text
- https://noriupapildu.lt/ckfinder/userfiles/files/mikoxalutux.pdfIn PDF document text
- http://www.centrosanmarco.eu/img/news/files/4531226158.pdfIn PDF document text
- http://www.rosabrockenhaus.ch/ckfinder/userfiles/files/tunikexetemelifedezap.pdfIn PDF document text
- https://istanajpdua.com/contents/files/ralef.pdfIn PDF document text
- http://atlonnuri.org/UpLoadImage/editer/files/62061081257.pdfIn PDF document text
- http://yidaig.com/uploadfile/file/20210912185442.pdfIn PDF document text
- http://xn--90aoj0agf7cq.xn--p1ai/uploads/files/fewoziguzavezudevidare.pdfIn PDF document text
- http://yztools.com/images/upload/File/58932779278.pdfIn PDF document text
- https://freebcard.com/ckfinder/userfiles/files/4399887950.pdfIn PDF document text
- http://architettoannalisatinelli.it/userfiles/files/fexejen.pdfIn PDF document text
- http://www.phuongdonggolf.vn/app/webroot/uploads/files/9267458805.pdfIn PDF document text
- https://chungangroup.com/uploads/files/202109131723058357.pdfIn PDF document text
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/161436b9aeb3f4---bumoputagelaxi.pdfIn PDF document text
- https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/2a846741e9831ea76f7134757b47711d/25765914254.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_off0000b7d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7D1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cfe8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFE8 | 11092 bytes |
SHA-256: a073a241603cc71732e35f166bc3ec0f72ac3c01a17a619cbfaab0c8fd8e4561 |
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font_02_sfnt_off0000e998.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE998 | 15780 bytes |
SHA-256: d8f4da19aaa4509a11722994cd5bad2dee18061f926547c503d4009d4a8974e9 |
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