MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs and is flagged as a link farm on disposable hosting, indicating a likely phishing or malware distribution attempt. The embedded JavaScript stream suggests the potential for malicious code execution, possibly to download further payloads. ClamAV detection as 'Pdf.Phishing.Trojan' strongly supports a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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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 https://medvor.ru/uplcv?utm_term=karyotype+test+pdf PDF link annotation
- http://friend5190.xyz/js/ckfinder/userfiles/files/88183456509.pdfIn PDF document text
- https://fond.ru/userfiles/file/44813601724.pdfIn PDF document text
- http://www.hgbehringer.de/img/files/files/95442364586.pdfIn PDF document text
- https://resulgame.com/calisma2/files/uploads/gavatekigenapuvoguwaworu.pdfIn PDF document text
- http://theclubburger.com/uploads/files/1138679459.pdfIn PDF document text
- http://fourfoods.com/images/files/wonisute.pdfIn PDF document text
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132c289cc382---gimifekef.pdfIn PDF document text
- https://kaowei.tw/image/files/20210903_075332.pdfIn PDF document text
- http://polesprogettazioni.com/userfiles/files/butewufomib.pdfIn PDF document text
- http://lovesushiscv.com/uploads/files/kavalirunipugokemituseb.pdfIn PDF document text
- http://www.allatpatikapecs.hu/images/file/62688342650.pdfIn PDF document text
- http://e-motyle.natura2000.pl/imgturysta/files/23040503181.pdfIn PDF document text
- https://greenboo.vn/uploads/files/negoboz.pdfIn PDF document text
- http://debeleven.net/UserFiles/File/sipevixe.pdfIn PDF document text
- http://studiotecnicobergamaschi.it/userfiles/files/xurilewepix.pdfIn PDF document text
- http://locke-3c.tw/uploads/files/202109050851535502.pdfIn PDF document text
- http://auto-spec.ca/fck/file/wekemifalozujosaretap.pdfIn PDF document text
- http://ssteelelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/26018737781.pdfIn PDF document text
- https://xn--hjrnskadeakademien-mtb.se/userfiles/file/61869959579.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/161387b09afced---78854173657.pdfIn PDF document text
- https://kolbandibileklik.com/resimler/files/logul.pdfIn PDF document text
- http://nj-rshb.com/v15/Upload/file/202193845507367.pdfIn PDF document text
- https://gitteszoneklinik.dk/ckfinder/userfiles/files/9012057611.pdfIn PDF document text
- https://baigiangtoanhoc.com/upload/files/34112343719.pdfIn PDF document text
- http://papinchess.ru/userfiles/file/70830454911.pdfIn PDF document text
- http://web5gstore.com/Files/files/30428943876.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_off0000d8e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8E3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f0f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0F5 | 17248 bytes |
SHA-256: 556e7e90d4ce8eb7100750f0cf4b38a7fd21d9a3d1100cbbda27b66bd7ace35d |
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font_02_sfnt_off00011db3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DB3 | 10352 bytes |
SHA-256: f0f4b62df6d98ed3d1411b2b76b885e63a2d56725e0ec41bd23011a61849af7b |
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