MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains numerous embedded URLs, many of which point to disposable hosting or link farms, a common tactic for phishing or distributing further malware. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic specifically indicates a link farm on disposable hosting, reinforcing the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 5
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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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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://pistant.ru/uplcv?utm_term=multivariable+control+systems PDF link annotation
- http://massageindex.nl/images/uploads/lawesoxukikumubitixiso.pdfIn PDF document text
- https://satnamunicipalcorporation.com/admin/ckfinder/userfiles/files/25266066528.pdfIn PDF document text
- http://bayernglobal.de/userVZ/file/zubozinuxosuditujumelele.pdfIn PDF document text
- http://js-space.de/userfiles/file/gowegowidimokumonagef.pdfIn PDF document text
- http://thegioichuyendong.info/app/webroot/upload/files/rugikarobepepelezalirebal.pdfIn PDF document text
- http://racecross.com/upload/edito_fckeditor/file/foxemobojovojiz.pdfIn PDF document text
- https://jooli.ru/ckfinder/userfiles/files/40193772438.pdfIn PDF document text
- http://rc-modeller.se/images/file///lukuwuf.pdfIn PDF document text
- http://tai-group.com/upload/files/87524982853.pdfIn PDF document text
- http://csc-0411.com/userfiles/file/20210912235707_yvsprj.pdfIn PDF document text
- http://okvin.org/userfiles/file/54164039154.pdfIn PDF document text
- http://werkschoenenverkoop.nl/images/docman/files/36869944892.pdfIn PDF document text
- http://wolfroccatiassociati.it/userfiles/files/81924917140.pdfIn PDF document text
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1614e4f76c9952---90358850410.pdfIn PDF document text
- http://annuaire-regional.com/ckfinder/userfiles/files/riwunikeluputiraxelu.pdfIn PDF document text
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16159f7e7bac91---bekojuk.pdfIn PDF document text
- http://gabident.pl/local/userfiles/file/zegiwin.pdfIn PDF document text
- https://dcimx.com/files/rolivat.pdfIn PDF document text
- http://flygarfield.net/userfiles/file/kakewa.pdfIn PDF document text
- http://xn--b1adrijbbb.xn--p1ai/upload_picture/sawufimiwuri.pdfIn PDF document text
- https://yarpaket.ru/userfiles/file/99322484417.pdfIn PDF document text
- http://ctmmaximoravenna.com/ckfinder/userfiles/files/nekafadukituj.pdfIn PDF document text
- https://remoteyourstaff.com/calisma2/files/uploads/babuvulekapu.pdfIn PDF document text
- https://gosselindesign.com/images/from_fckeditor/fichiers/87851003392.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_off0000dff8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFF8 | 19124 bytes |
SHA-256: 8ecfb422da7d04eb5c65c63f9d89cfe8581daea4d083593d216e53fdcfea67a1 |
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font_01_sfnt_off00011103.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11103 | 10804 bytes |
SHA-256: 78913ff3afdf7fd791bd96fa034343b457f5acd55c5da06004119763f4763cf5 |
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font_02_sfnt_off00012a00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A00 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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