MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URIs, many pointing to disposable hosting, and is flagged as a link farm. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically a phishing or trojan delivery mechanism. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may be a pretext to trick users into providing a password for a subsequent download, which is a common tactic in phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://philabc.ru/uplcv?utm_term=how+to+send+files+using+wifi+direct PDF link annotation
- http://185.33.116.142/~bbyacht01/upload/files/29446269485.pdfPDF link annotation
- https://pasationtravellers.com/root/FCKeditor/file/84006861663.pdfIn PDF document text
- http://henca.com/files/details/file/95851483203.pdfIn PDF document text
- http://kaitianjinghua.cn/admin/userfiles/file/202109040727261014.pdfIn PDF document text
- http://stroyindustry.com/userfiles/file/linupevuw.pdfIn PDF document text
- http://twozonechickenlasvegas.com/uploads/files/77681881744.pdfIn PDF document text
- http://argyleliquidations.com/userfiles/files/8681329586.pdfIn PDF document text
- https://songhong-thudo.com/img/files/gorinogajuzipiroriguloxuz.pdfIn PDF document text
- http://ekbdrive.ru/ckfinder/userfiles/files/sovezulelokebitusarilet.pdfIn PDF document text
- https://walnutcreekguide.com/wysiwygfiles/file/gizubapigowotisekipov.pdfIn PDF document text
- http://cozycornerexpress.com/uploads/files/94332707248.pdfIn PDF document text
- http://studiorinaldibedin.eu/userfiles/files/30860368168.pdfIn PDF document text
- http://kythuatviet.vn/uploads/userfiles/file/sivuzexuxemujerefabak.pdfIn PDF document text
- http://gdlejia.com/uploadfile/files/20210919_042408.pdfIn PDF document text
- http://mueblesdepladur.es/1/userfiles/file/56907012226.pdfIn PDF document text
- http://umffz21.ru/admin/ckfinder/userfiles/files/71606968359.pdfIn PDF document text
- https://gencshow.com/upload/ckfinder/files/xiveletipajisepad.pdfIn PDF document text
- http://kehlux.lu/userfiles/files/xawelesezanujubupuku.pdfIn PDF document text
- http://www.likoda.com.tw/upload/ckimg/files/lunimibajuza.pdfIn PDF document text
- https://glearningsolutions.com/userfiles/files/58391700292.pdfIn PDF document text
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614350c971395---37874944957.pdfIn PDF document text
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/ce0c7c519e7b6a51eee20c8a24099e71/fiviladotekadimaxaxikuta.pdfIn PDF document text
- http://helderlive.nl/ckfinder/userfiles/files/1088694411.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_off0000d81b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD81B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f032.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF032 | 10664 bytes |
SHA-256: 37a6043509de74ad0316a2b439e60db20e0827c0c7288dde59aee06badf6af2a |
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font_02_sfnt_off0001088c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1088C | 17144 bytes |
SHA-256: bad6375657c25d9202d40b17526880279cb1105757c3c2503937b91fd5dd248c |
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