MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many of which are hosted on disposable domains, suggesting a link farm or phishing lure. The presence of external URIs and the overall structure indicate an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 5
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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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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://krisoc.ru/uplcv?utm_term=lego+digital+designer+android PDF link annotation
- http://www.onlinenieuwsbriefversturen.nl/gebruikers/afbeeldingen/57683471678.pdfIn PDF document text
- http://www.supair-lux.hu/ckfinder/userfiles/files/77390484695.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148168e9d59c---bawezutitim.pdfIn PDF document text
- http://www.sintsprev-ms.org.br/ckfinder/userfiles/files/pofividonuviwej.pdfIn PDF document text
- http://chiesamadremarsala.eu/userfiles/files/kamanut.pdfIn PDF document text
- http://suphammamnon.org/uploads/files/miwediwositarolasam.pdfIn PDF document text
- http://sreema.org/FCKeditor/file/bikapafugazutaderosesi.pdfIn PDF document text
- http://bacsionline.net/userfiles/file/40308082862.pdfIn PDF document text
- http://sedaciesupravy.sk/media/file/55727275165.pdfIn PDF document text
- http://mayjack.com/upload/files/kazevobujegutaguvug.pdfIn PDF document text
- https://fonixkoncert.hu/upload/file/romamiletidale.pdfIn PDF document text
- https://muratay.nl/userfiles/file/popavavefuvanofavupemak.pdfIn PDF document text
- https://trade.inter-ural.ru/ckfinder/userfiles/files/4358703696.pdfIn PDF document text
- https://systematix.pl/userfiles/file/39373482706.pdfIn PDF document text
- http://kubabus.cz/novy-web/upload/file/powadasowikixonub.pdfIn PDF document text
- https://collinite.pl/userfiles/file/57797883672.pdfIn PDF document text
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613649fab8b03---76781213440.pdfIn PDF document text
- https://natanashoes.com/kingkong/userfiles/files/regiro.pdfIn PDF document text
- http://olsztyntransportmedyczny.pl/userfiles/file/tevufakasidamaxesumame.pdfIn PDF document text
- https://consultemergingmarkets.cubsindia.com/files/86809501687.pdfIn PDF document text
- https://www.gurgy.net/ckfinder/userfiles/files/21464778116.pdfIn PDF document text
- https://bahia-group.com/ckfinder/userfiles/files/16525592274.pdfIn PDF document text
- http://mobilni-kadernictvi.cz/files/file/80386131299.pdfIn PDF document text
- http://mimarathi.live/assets/ckfinder/core/connector/php/uploads/files/refaruwixagabikixe.pdfIn PDF document text
- http://pagyesa.org/userfiles/file/20210914081431.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_off0000cc56.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC56 | 10380 bytes |
SHA-256: 839ccb131ac5915706e915c3238fdb4ff46264b35700012103bf883d318a0410 |
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font_01_sfnt_off0000e3ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3AD | 17872 bytes |
SHA-256: a51a62c7973cb39f250a4be1880e7eb660f8f5bf4aa7657d6079373876de8e76 |
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font_02_sfnt_off000110f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110F8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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