MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ClamAV and an ML classifier, with heuristics indicating a malformed exploit stream and a link farm on disposable hosting. The PDF contains numerous external URIs, with one pointing to a URL that appears to be part of a redirection chain for downloading an APK, suggesting a phishing or malware distribution attempt. No scripts were extracted, but the PDF structure itself is indicative of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://www.edmcenter.xyz/ckfinder/userfiles/files/40504462014.pdf In PDF document text
- http://www.saito-ken.jp/userdata/file/kevamevokafilapofolami.pdfIn PDF document text
- https://rodolphe-blanchet.fr/Rodolphe/fckeditor/file/vuxomemuka.pdfIn PDF document text
- http://pate4me.com/userfiles/file/bubabed.pdfIn PDF document text
- https://yaslibakicisi.net/userfiles/file/muginunorozi.pdfIn PDF document text
- http://radis-rrl.ru/userfiles/image/93635669482.pdfIn PDF document text
- http://bienbao.net/uploads/files/xerevi.pdfIn PDF document text
- https://mavachhaiphong.com/upload/files/44684131758.pdfIn PDF document text
- https://ce-mi.pl/uploads/userfiles/files/waxukofep.pdfIn PDF document text
- https://pcparts.fr/ckfinder/userfiles/files/14346840424.pdfIn PDF document text
- http://malerbetrieb-malanders.de/Webseite/pics/fotos/1/file/zinov.pdfIn PDF document text
- https://stabiactiv.com/userfiles/file/fadipexupipozosuxa.pdfIn PDF document text
- http://nextgenship.net/upload/file/20210906163096901776.pdfIn PDF document text
- https://milorem-service.ru/userfiles/file/gawepipominefefog.pdfIn PDF document text
- http://narcisse.sk/editor_uploads/files/41731292302.pdfIn PDF document text
- https://alasclub.gr/neuro/ckfinder/userfiles/files/15299986007.pdfIn PDF document text
- https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/161384345d6b08---mubimig.pdfIn PDF document text
- http://xn--2osv9pt2jfpt.com/uploadfiles/files/zoxujifetogugidugizowanu.pdfIn PDF document text
- https://euroroma-bg.org/files/file/38220288492.pdfIn PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613e236bc9530---busave.pdfIn PDF document text
- http://thienanglass.vn/upload/files/95819028402.pdfIn PDF document text
- https://gamma-electronics-eg.com/userfiles/files/17083465625.pdfIn PDF document text
- https://renebeumer.nl/userfiles/file/1022103416.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=aeroplane+game+download+apkPDF 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_off0000b7a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7A8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cfba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFBA | 14916 bytes |
SHA-256: b321b07b6c995b71d919cdeb511e42e3207ce6335d835b52776368e168cacd38 |
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font_02_sfnt_off0000f577.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF577 | 10536 bytes |
SHA-256: f36d2275261cd173d6e6b4d006df4f7e17f264a3dcf174347f3831f40a1ef680 |
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