MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by multiple heuristics, including a critical ClamAV detection for Pdf.Phishing.Trojan and an ML classifier indicating maliciousness. The presence of numerous external URIs, many pointing to PDF files on disposable hosting, suggests a link farm designed to redirect users to malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically indicates a non-clustered link farm on disposable hosting, reinforcing the phishing or scam lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://archism.ru/uplcv?utm_term=tutor+in+a+book%27s+geometry+pdf PDF link annotation
- https://spcinternational.in/ckfinder/userfiles/files/refodovideba.pdfIn PDF document text
- https://www.bevillelecomte.ovh/ckfinder/userfiles/files/pegazemulukazedomuberukin.pdfIn PDF document text
- http://apple888.vn/luutru/files/19393391231.pdfIn PDF document text
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161318dd7b39c5---51546831899.pdfIn PDF document text
- https://7mark3t2-7aya.com/contents/files/8412175092.pdfIn PDF document text
- https://kolorubursztynu.kolorubursztynu.pl/web/uploads/files/87923069671.pdfIn PDF document text
- https://vongtaytramhuong.vn/upload/files/26280864849.pdfIn PDF document text
- http://sun-tes.ru/files/file/5615665113.pdfIn PDF document text
- https://armour-technoz-ca.otzol.net/ckfinder/userfiles/files/39846337419.pdfIn PDF document text
- http://aktasmatbaacilik.com/resimlerfiles/febisatez.pdfIn PDF document text
- https://tiemhoahaibara.com/data/dulieu/files/navabofexujuzaj.pdfIn PDF document text
- http://cserepakciok.hu/xdata/file/gekatiman.pdfIn PDF document text
- http://dralituncer.net/userfiles/file/rurebokawadogijebe.pdfIn PDF document text
- http://ulleungroadtour.com/FileData/ckfinder/files/20210906_B711362D780063E9.pdfIn PDF document text
- http://angerdress.store/ckfinder/userfiles/files/54759145711.pdfIn PDF document text
- http://idealthailand.com/file_media/file_image/file/53212354560.pdfIn PDF document text
- http://promocode.lu/userfiles/files/35522721691.pdfIn PDF document text
- https://f2h63c2.ip4secure.net/upload/files/zakabuzefagowitepavemibe.pdfIn PDF document text
- https://aihr-iadh.org/uploads/FCK_files/file/27055808751.pdfIn PDF document text
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/16131f23215e61---lojameru.pdfIn PDF document text
- http://gildiamasterov.ru/userfiles/file/vesefulituxizarek.pdfIn PDF document text
- https://dhrc.in/userfiles/file/gezemowoxakowamebubopeb.pdfIn PDF document text
- http://anabakorea.jp/userfiles/file/nepivetazorivudofijiwomij.pdfIn PDF document text
- https://imotrading.com/images/userfiles/43494941100.pdfIn PDF document text
- https://lensmam.com/userfiles/file/dobolarigoziruvika.pdfIn PDF document text
- http://888chji.com/userfiles/files/ledejabixinasurenabaxix.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_off0000dd47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD47 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f55e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF55E | 11236 bytes |
SHA-256: 3acf793a03a2874e893ba6056d8f13b2ea233f3a9df9e1b788a6a4ed0a6c896b |
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font_02_sfnt_off00010f62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F62 | 18064 bytes |
SHA-256: 6903dd96fdd42c8338f614dda038a9ed6753e243323038c01881c51f93a38979 |
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