MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an urgency-based lure. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://jowinbio.com/upload/files/202109071304349594.pdf In PDF document text
- http://szguilong.com/userfiles/files/somajafari.pdfIn PDF document text
- http://www.tlo.ntou.edu.tw/ckfinder/userfiles/files/5854355392.pdfIn PDF document text
- http://geometrabottero.it/userfiles/files/zezexom.pdfIn PDF document text
- http://anhuishangbiao.com/upload_fck/file/2021-9-3/20210903044725237008.pdfIn PDF document text
- http://tulga.ru/editor/files/82206188260.pdfIn PDF document text
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b513e7ef71---jedezurigapomegudoku.pdfIn PDF document text
- http://bretagne.annuaire-regional.com/ckfinder/userfiles/files/buxasadaduvefukasa.pdfIn PDF document text
- http://chongros.com/userData/board/file/tonakedafaja.pdfIn PDF document text
- http://burmeseburmilla-allevamento.com/userfiles/files/29325391862.pdfIn PDF document text
- http://nirmalapublicschoolerumely.com/userfiles/file/bavolarovisip.pdfIn PDF document text
- http://debseven.net/UserFiles/File/16950738224.pdfIn PDF document text
- http://petra-dario.info/upload/datoteke/21398013094.pdfIn PDF document text
- https://angkortaxiservice.com/userfiles/file/29528050445.pdfIn PDF document text
- https://mb-classic-service.de/userfiles/file/jusekovilujuxedetisow.pdfIn PDF document text
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/7b0bcd64ea4d8eb2010e0ebf45d1d561/87953501562.pdfIn PDF document text
- https://pushtypathshala.com/demo/aims/files/images/files/14489820693.pdfIn PDF document text
- https://wotfiles.com/ckfinder/userfiles/files/89798424258.pdfIn PDF document text
- https://itandem.net/ckfinder/userfiles/files/gakunanelogixidoba.pdfIn PDF document text
- http://www.sanjuktabanerjee.com/fckimages/file/masubigon.pdfIn PDF document text
- https://daqing-jewelry.com/uploads/files/202109042018234867.pdfIn PDF document text
- http://4bzsoftware.com/Images_upload/files/94435859369.pdfIn PDF document text
- http://charolais-hessen.de/write/userfiles/file/setavade.pdfIn PDF document text
- https://mandarinkinesiska.com/userfiles/file/pugizepofapolivariloxod.pdfIn PDF document text
- http://nadiadsa.org/userfiles/file/waxividixabap.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=the+dark+knight+full+movie+123moviesPDF 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_off0000dc1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC1C | 18508 bytes |
SHA-256: 50403c19bb889f21d2e23e1c8bcd69f650b01871503bb67fd5e223cdf08827cd |
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font_01_sfnt_off00010c55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C55 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001246c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1246C | 11364 bytes |
SHA-256: f7e0079bdd62addedfd3275a7188c425fb703321e63dc221224ebd179a5b7374 |
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