MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file identified as malicious by multiple heuristics and a machine learning classifier. It contains numerous external URIs and is described as a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The presence of embedded URLs and the overall structure point towards an initial access vector via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://cructi.ru/uplcv?utm_term=vegas+crime+simulator+hacked PDF link annotation
- https://support-trevianum.nl/userfiles/files/zimiviwemeteru.pdfIn PDF document text
- http://www.polni.si/Images/files/20034316968.pdfIn PDF document text
- http://business-plan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/xefumadojusetijisibex.pdfIn PDF document text
- http://tanriovermensucat.com/uploads/genel/files/42633671679.pdfIn PDF document text
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/161370261d6b9c---gamabegop.pdfIn PDF document text
- https://aventura-agence.lu/userfiles/files/kovazigimatiwud.pdfIn PDF document text
- http://www.enjoyvaltellina.it/admin/ckfinder/userfiles/files/12667790864.pdfIn PDF document text
- http://toyotaquangninh.org/data/dulieu/files/tonutokuwawi.pdfIn PDF document text
- http://youil.org/userData/board/file/sarotikipu.pdfIn PDF document text
- http://www.rannatennis.ee/data/upfiles/files/11855844941.pdfIn PDF document text
- https://membermimpi.com/contents/files/25260299905.pdfIn PDF document text
- http://www.peritaonline.es/ckfinder/userfiles/files/21223939234.pdfIn PDF document text
- http://www.sudeshnamaulik.com/fckimages/file/gotukaserirabisovewuleri.pdfIn PDF document text
- http://broadviewlibrary.org/uploaded_bvlib/file/digazidalaxajokinolewesij.pdfIn PDF document text
- http://dnt-mayak.ru/content/File/82712779697.pdfIn PDF document text
- https://10kshot.com/customerinterview/ckfinder/userfiles/files/laruzid.pdfIn PDF document text
- http://metalzilemboeventi.com/userfiles/files/vadilelas.pdfIn PDF document text
- http://xn----8sbfhu6ab4bqv.xn--p1ai/userfiles/file/bokalofelinofu.pdfIn PDF document text
- https://ltes2.tw-goods.com/UserFiles/files/tubejovedip.pdfIn PDF document text
- http://sanxuatbanthinghiem.org/app/webroot/uploads/files/fafizijula.pdfIn PDF document text
- https://giorgiosantinelli.it/file/bakofutamutavopi.pdfIn PDF document text
- http://www.ags-sib.ru/ckfinder/userfiles/files/gujagajedevegojiguzigubig.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613d034db1096---54003916963.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_off0000c448.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC448 | 16796 bytes |
SHA-256: 2e08a9369631030119f289855e18ca558c875ec6d1ce084cb3ab0b2d6cd46cb7 |
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font_01_sfnt_off0000f010.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF010 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010827.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10827 | 10876 bytes |
SHA-256: 17ef0d845c1911a1d0c83784a847f2508e63ab4a7a75870519d0eaf5511d214b |
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