MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on domains with low reputation or are part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The embedded JavaScript is a common technique for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 7
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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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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 https://fotobolfestmeny.hu/mvc/userfiles/file/547327961.pdf In PDF document text
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/tm83avg0ti75o18nevk6jhh8pc/nataluvibezonasa.pdfIn macro / runtime command snippet
- http://torby.kbo.pl/ckfinder/userfiles/files/ziredimoxudobu.pdfIn PDF document text
- http://daieimotors.com/js/upload/files/41555463871.pdfIn PDF document text
- https://topupdana.com/contents/files/58998893140.pdfIn PDF document text
- http://ilovestory.com/upload/file/tapakufapurobika.pdfIn PDF document text
- http://jarosi.hu/files/file/pokotidamamupimunimuxu.pdfIn PDF document text
- https://pchome.uzai.ca/upload/files/tajitopeto.pdfIn PDF document text
- https://xn--b8qxb801j.tw/upload/files/52520911662.pdfIn PDF document text
- http://esistore.lu/userfiles/file/putalemesisorogasolag.pdfIn PDF document text
- https://saglamahsapkutu.com/img/editor/image/file/65655137539.pdfIn PDF document text
- http://broadgatecapital.com/userfiles/file/61714189831.pdfIn PDF document text
- http://twtime.com/uploads/files/202110050849327739.pdfIn PDF document text
- https://srmhomes.com/images/bulk_images/files/kefudogigexopepijoxomanut.pdfIn PDF document text
- http://mega-treid.com/userfiles/files/ximejaligisododuruje.pdfIn PDF document text
- http://imosa.asia/uploads/files/202109290345557052.pdfIn PDF document text
- http://vswet.ru/f/nazalagaxiwajesisolis.pdfIn PDF document text
- http://littlepearlbooks.in/data/eimages/file/91397521060.pdfIn PDF document text
- https://artlabjo.com/userfiles/file/gabutu.pdfIn PDF document text
- http://becskeicsodajo.hu/admin/fck_upload/file/97880239583.pdfIn PDF document text
- http://cuanhomkinhtoanthang.com/media/file/mejatajefugemaxete.pdfIn PDF document text
- http://restauraceeverest.cz/userfiles/file/53355680899.pdfIn PDF document text
- https://fotobolfestmeny.hu/mvc/userfiles/file/In macro / runtime command snippet
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=tail+curled+up+catPDF link annotation
- 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_off0000b0db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0DB | 16404 bytes |
SHA-256: 2c72e214f6ad82d7abdbc3f18d21bd9c8c6ad3134552818efded1417f12688a1 |
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font_01_sfnt_off0000dac0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAC0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f2d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2D7 | 10176 bytes |
SHA-256: 935d22d969abeb1ca02d5700f9ac0824d56cfa505a87cd5930c6781ed0a75a92 |
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