MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicated maliciousness. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM and SE_LOLBIN_RUN_COMMAND firings, along with the large number of embedded URLs, suggest a link farm designed to redirect users to potentially malicious sites. The document body is heavily obfuscated, preventing a clear understanding of its direct intent beyond link distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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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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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://www.golfusa.be/userfiles/files/zututebiseb.pdf In PDF document text
- https://mauspro.net/upload/files/71085208777.pdfIn PDF document text
- http://biomax.shop/filespath/files/20210906042947.pdfIn PDF document text
- https://redac.ch/upload/41495169963.pdfIn PDF document text
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613750cf23ef5---44484819257.pdfIn PDF document text
- https://www.hsbofmn.com/ckfinder/userfiles/files/68147323668.pdfIn PDF document text
- https://100tmt.com/uploadimage/files/20210908045123.pdfIn PDF document text
- https://ribaczpeter.hu/files/file/78765691331.pdfIn PDF document text
- https://asesoriagade.com/app/webroot/files/files/ramobemuja.pdfIn PDF document text
- http://mmbc.cz/_data/user_files/file/zapurajutonalezuruze.pdfIn PDF document text
- http://drironcat.com/images/file/1316969408.pdfIn PDF document text
- http://coytex.net/ckfinder/userfiles/files/44089117957.pdfIn PDF document text
- http://qdcmd.com/data/files/megakekiwajefosukam.pdfIn PDF document text
- https://bda.ch/ckfinder/userfiles/files/nikasibakiperi.pdfIn PDF document text
- https://panificioilcavaliere.it/userfiles/files/kupol.pdfIn macro / runtime command snippet
- http://www.armstrongre.com/files/files/91344100434.pdfIn PDF document text
- http://lg-palette.com/upload/files/89307011341.pdfIn PDF document text
- https://yellowstonewildlife.com/99278534175.pdfIn PDF document text
- https://galedo.cz/www/data/cms_files/files/vapavelelefijagepipavozo.pdfIn PDF document text
- https://www.medicalbi.com/ckfinder/userfiles/files/87254883828.pdfIn PDF document text
- https://nacituran.com/userfiles/file/ruxemilupuni.pdfIn PDF document text
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e6aa009205---nosobodeduminafutuzam.pdfIn PDF document text
- https://aspirecambodia-edu.org/userfiles/file/1661361822.pdfIn PDF document text
- http://claudiamelchior.it/images/file/turapazekozunaguvomom.pdfIn PDF document text
- https://bda.ch/ckIn macro / runtime command snippet
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=waptrick+motor+gamePDF 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_off0000f146.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF146 | 10484 bytes |
SHA-256: 13e9d1e01c413c26db987ee14eab7df026f40902b38f7f7b3674e6c3fb0ce85d |
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font_01_sfnt_off0001092c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1092C | 20304 bytes |
SHA-256: 763801e17bed9bdf5a46dd4d5798d5eb8373086240a768ee9ad62f1041bccffd |
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font_02_sfnt_off00013da2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DA2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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