MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for delivering malicious payloads. The heuristic 'SE_INVOICE_LURE' indicates the document attempts to trick the user with a fake invoice. The presence of external URIs, including one pointing to a PDF file, suggests a downloader or redirector mechanism. ClamAV detection further confirms its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
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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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://coretry.ru/uplcv?utm_term=an+inspector+calls+storyline PDF link annotation
- http://superfasttv.com/uploads/files/betejojab.pdfIn PDF document text
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130cf32167e2---38828658830.pdfIn PDF document text
- https://techinnsrl.com/writable/public/userfiles/file/zomugusufatotefexuxod.pdfIn PDF document text
- http://grupposcorcia.it/userfiles/files/80173664855.pdfIn PDF document text
- https://atkarisuli.hu/userfiles/file/tenusodusufolepup.pdfIn PDF document text
- http://messtores.ca/fck_user_files/file/soforanujuvopovixuruz.pdfIn PDF document text
- http://asckhn.com/acskhn/userfiles/file/tukilibaniz.pdfIn PDF document text
- https://seikai.jp/free_images/files/suwuvivitasugosigizolu.pdfIn PDF document text
- http://zhengfutz.com/v15/Upload/file/202199162132884.pdfIn PDF document text
- http://royalwedding.jp/images/blog/file/24835447165.pdfIn PDF document text
- http://benhvienlaptop.biz/userfiles/file/fojomipobarakik.pdfIn PDF document text
- http://worldwidestationeryholdings.com/files/file/nomojejik.pdfIn PDF document text
- http://1night2daytour.com/ckupload/files/zefes.pdfIn PDF document text
- http://maradonasalud.com.ar/ckeditor/ckfinder/userfiles/files/40676939355.pdfIn PDF document text
- http://tradeweb.es/userfiles/file/5945379635.pdfIn PDF document text
- http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138f0774e998---toxewolowawan.pdfIn PDF document text
- http://cleanyachts.it/writable/public/userfiles/file/61227541329.pdfIn PDF document text
- https://ofcourselc.com/admin/uploadsfile/sojotejitabaxo.pdfIn PDF document text
- https://lombardpruszkow.pl/local/userfiles/file/dizetiguxuj.pdfIn PDF document text
- http://cautrucpalang.vn/webroot/img/files/11755636170.pdfIn PDF document text
- http://aalzkj.love-mrt.com/upload/files/nefeninewabexorisufu.pdfIn PDF document text
- http://quimis.org/js/ckfinder/userfiles/files/47115806172.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_off00010a29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A29 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00012240.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12240 | 10460 bytes |
SHA-256: a16ced6664f46882403c130a829513b2b00d9f01a84b12b59c6f65aa8c075635 |
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font_02_sfnt_off00013a27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A27 | 19284 bytes |
SHA-256: 991be3a9db8b2870dfa509e6e972b13e72722d7236d673c2ba03c480756c96cd |
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