MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which are hosted on suspicious domains and appear to be part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing or malware distribution sites. The presence of JavaScript suggests an attempt to exploit browser vulnerabilities or download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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 http://qdcmd.com/data/files/vejufipazuzub.pdf In PDF document text
- https://childprotectionindia.com/lexcyberia/userfiles/files/76003829918.pdfIn PDF document text
- http://de.ruben.pl/ckfinder/userfiles/files/48639249340.pdfIn macro / runtime command snippet
- http://fusheng-vietnam.vn/admin/webroot/upload/image/files/27694114893.pdfIn PDF document text
- https://mbamantra.com/ci/userfiles/files/53284908760.pdfIn PDF document text
- http://karaokejdi.com/ckfinder/core/connector/php/upload/files/33679820952.pdfIn PDF document text
- http://jocoseatee.com/userfiles/files/xafiralen.pdfIn PDF document text
- http://hong-tour.com/FileData/ckfinder/files/20210903_F209338F4D4A07F5.pdfIn PDF document text
- http://xn----7sbbgprpk7biiq.xn--p1ai/admin/ckfinder/userfiles/files/99685878510.pdfIn PDF document text
- https://konferencii.ru/js/ckfinder/userfiles/files/guwex.pdfIn PDF document text
- http://hakanhurdacilik.com/userfiles/file/ravutezaro.pdfIn PDF document text
- https://thaiwoodengames.com/files/upload/files/28229770564.pdfIn PDF document text
- http://soles2walk.cz/data/file/luzekibosa.pdfIn PDF document text
- http://corising.info/sa_upload/userfiles/file/20210904154900.pdfIn PDF document text
- https://wilocom.ro/ckfinder/userfiles/files/95959966956.pdfIn PDF document text
- https://x-leather.com/radsportfiles/file/vevitobuxinuw.pdfIn PDF document text
- https://akanaymatbaa.com/calisma2/files/uploads/rosolugamolele.pdfIn PDF document text
- https://groupburuemas1.com/contents/files/17123292908.pdfIn PDF document text
- https://pchome.uzai.ca/upload/files/xipeletonitepukon.pdfIn PDF document text
- http://lecieldesandes.fr/ckfinder/userfiles/files/fimino.pdfIn PDF document text
- https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613627afeb5f7---56142140913.pdfIn PDF document text
- http://bbu.vn/Images_upload/files/gotadogurasirit.pdfIn PDF document text
- https://study-abroad-travel.com/ckfinder/userfiles/file/pijebitisefulukesomoz.pdfIn PDF document text
- https://childprotectionIn macro / runtime command snippet
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=android+system+emulatorPDF 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_off0000e115.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE115 | 17120 bytes |
SHA-256: f36483ab333d1a9eb2df44443e9a0811404c84648ca1eb8debb609fd97ad1d61 |
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font_01_sfnt_off00010dc4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DC4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000125db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125DB | 10604 bytes |
SHA-256: bdf83e76772e6af0c66f9098c1d9313b8b954a9d91887321dd9fb145d12cdf49 |
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