MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for delivering malicious payloads. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded JavaScript likely attempts to download and execute a second-stage payload from one of the numerous external URLs found within the document, which is characteristic of a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://www.atsamuihaus.com/image/upload/File/meguzigupiderulatufitoso.pdf In PDF document text
- http://alphanaturehk.com/userfiles/file/nevukufogufo.pdfIn PDF document text
- http://suachuadienlanhhoaphat.com/hinhanh_fckeditor/file/rimoxekevojesesid.pdfIn PDF document text
- http://szybkieprawko.pl/szybkieprawko.pl/user/admin/fck/file/94442490838.pdfIn PDF document text
- https://fleseriuassociates.ro/files/file/xenikajemej.pdfIn PDF document text
- http://jingyitech.com/uploadfile/nimunudirokifobe.pdfIn PDF document text
- http://thailand.metten.dk/ckfinder/userfiles/files/jiribibuneferefetapipuxev.pdfIn PDF document text
- https://grdr.org/paidel/ckfinder/userfiles/files/gujevofivalawiviteba.pdfIn PDF document text
- http://lsmtrontractor.com/upfiles/file/20211003033745.pdfIn PDF document text
- http://china-shengbang.com/upload_fck/file/2021-9-27/20210927140429780064.pdfIn PDF document text
- https://pasationtravellers.com/root/FCKeditor/file/kegupelakojemut.pdfIn PDF document text
- https://illustrations.noche.fr/images/files/68426300756.pdfIn PDF document text
- https://pqclass.kr/imgs/file/99423178539.pdfIn PDF document text
- https://masihpt1.com/contents/files/xorobalifigezokudebide.pdfIn PDF document text
- https://doanhnghiepvietnam.org/img_duhoc/files/67643924234.pdfIn PDF document text
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/l3o5jlae0p1rrnk3q8mgekjp35/tetokaju.pdfIn PDF document text
- https://indobaliart.com/sitefiles/file/77475965709.pdfIn PDF document text
- https://projetounificado.com/uploads/files/segumuwawawadem.pdfIn PDF document text
- http://c2r.su/uploadfiles/file/2021090808373473499.pdfIn PDF document text
- https://rajatotogroup4.com/contents/files/laxufigo.pdfIn PDF document text
- https://legouic-peinture.fr/userfiles/file/rezovogogos.pdfIn PDF document text
- http://metisentry.net/ckfinder/userfiles/files/67913766224.pdfIn PDF document text
- http://xn--80age2amlc.xn--80adxhks/pics/images/file/26619794573.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=cinderella+and+the+big+boss+chinese+dramaPDF link annotation
- https://mediacentre.heathrow.com/js/ckfinder/userfiles/files/duxaxufiwinejizatitonagam.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_off00012756.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12756 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00013f68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F68 | 25340 bytes |
SHA-256: 02810ef24ee0f5aae526bc09965b63383535dc4a6615a41cef187e5f5b85e2b1 |
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font_02_sfnt_off000180f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x180F0 | 10988 bytes |
SHA-256: ea290aadd65e15b652073b604338fd3b2f9284ea26f514e4911d462d020db466 |
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