MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many of which are hosted on disposable domains and appear to be part of a link farm. The heuristic 'SE_MFA_LURE' indicates the document is designed to trick users into providing sensitive information, consistent with credential phishing. ClamAV detection and ML classification further support its malicious nature. The presence of embedded URLs and the link farm structure suggest an attempt to redirect users to malicious sites for credential harvesting or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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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=download+android+apps+to+your+computer PDF link annotation
- https://kamarkosong.com/contents/files/bijujonotigobetelejof.pdfIn PDF document text
- http://aow.infogestnet.it/ckfinder/userfiles/files/folepaxej.pdfIn PDF document text
- https://osikovo.eu/webroot/img/content/files/30664208457.pdfIn PDF document text
- http://aallergy.friend-match.com/upload/files/23106358743.pdfIn PDF document text
- http://nhatrangpalace.net/app/webroot/upload/files/94012898332.pdfIn PDF document text
- http://lasermedia.cn/userfiles/file/gibopetelatawixas.pdfIn PDF document text
- http://parvazyab.net/basefile/api203/files/mipulefaxopiwizupima.pdfIn PDF document text
- http://hijoin.hu/editor_up/83498481212.pdfIn PDF document text
- http://inruho.ru/ckfinder/userfiles/files/vexajofobofesiwazilajeli.pdfIn PDF document text
- http://rescue119.org/userfiles/file/damasidejojefa.pdfIn PDF document text
- https://enerjimakine.com/tsrm1/img/userfiles/file/72479285356.pdfIn PDF document text
- http://sloplast.com/userfiles/files/dasotiraxejazaxifuzul.pdfIn PDF document text
- https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139938591547---nowexafuzawifutaj.pdfIn PDF document text
- http://avtrak.ru/ckfinder/userfiles/files/34998551213.pdfIn PDF document text
- https://laps.pl/userfiles/file/49299433050.pdfIn PDF document text
- http://china-baby-clothes.com/d/files/44971433563.pdfIn PDF document text
- http://2018.letnifestiwal.pl/ckfinder/userfiles/files/tanofemuzozexalipi.pdfIn PDF document text
- http://inspiredindianfoundation.org/uploads/16182211864.pdfIn PDF document text
- http://imhome-listings.com/userfiles/files/95518322484.pdfIn PDF document text
- http://skrn.cz/pic/file/52954255101.pdfIn PDF document text
- https://www.jancsoalapitvany.hu/ckfinder/userfiles/files/vodujatagexiporufapomire.pdfIn PDF document text
- https://sskundal.com/userfiles/file/fupegabozule.pdfIn PDF document text
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136b468bb4c2---45897050503.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_off0000ebfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBFC | 10976 bytes |
SHA-256: 5ce08f648fd4ca3d037da8f7025d796cb9d66ace287290df6b3b107c9e7a0e37 |
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font_01_sfnt_off00010584.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10584 | 17680 bytes |
SHA-256: cb769bec2d558b8f1db0f45d8c83d2734606b87de91340ab0b997620e1ba75f1 |
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font_02_sfnt_off0001332b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1332B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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