MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to disposable hosting or compromised CMS uploads, suggesting a link farm designed to distribute malicious content. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates that the document likely instructs the user to open a password-protected archive, a common tactic to bypass gateway security. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 8
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://crysiq.ru/uplcv?utm_term=cfr+21+part+11+pdf
- http://on-video.com/movies/movie_data/file/disisexakoteremowam.pdf
- http://ministerium.pt/files/numekowinaxiwesoxevaru.pdf
- https://marblobaths.ph/app/webroot/img/files/pibalezidivizo.pdf
- https://bywuf.org/upload/editor/files/98927271534.pdf
- http://thechelseaff.com/user_uploads/files/53251376165.pdf
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b941e5481d9---rularojixakajezulanetetuw.pdf
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/160abf6bf98fad---48082905779.pdf
- https://szaktel.hu/uploads/file/kuwejofodaxave.pdf
- http://donovaly-ubytovanie-safran.sk/web/userfiles/file/kivijoj.pdf
- http://toyteepee.com/uploadfiles/file/210803011812901820tks2un.pdf
- http://wrtour.com/FileData/ckfinder/files/20210717_11FB7C5DF45B8A25.pdf
- https://geo-decouverte.kenamedia.ch/ck/ckfinder/userfiles/files/visubi.pdf
- http://hebammenglueck.de/ckfinder/userfiles/files/22103476143.pdf
- https://www.eoluk.com/wp-content/plugins/super-forms/uploads/php/files/nlehconkob9gp2qvof58f28pvo/7487289276.pdf
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc728d08af---58290645731.pdf
- http://azizavacanze.com/userfiles/files/28466735516.pdf
- http://burnettefamilyreunion2021.com/clients/867108/File/17276777731.pdf
- https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/16079b5910c5b6---tiwekuj.pdf
- http://carshopm.com/js/upload/files/gikoj.pdf
- http://fandimnarodaku.cz/upload/file/pujufoso.pdf
- https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/pt0pqde67ira50nj8hlhu6lci0/begaxatazexezolu.pdf
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/d748bbd697c632adcbb8af783292b3d2/26802000388.pdf
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fd98bd9f4be---82947703191.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d4ae.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4AE | 16792 bytes |
font_01_sfnt_off0000ecc5.bine2e39baad63bc1bb87eb0435a3ec35fe3cffc6c844eda19fc2bc022339ff0b7e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECC5 | 10032 bytes |
font_02_sfnt_off00010344.bin7d178b259248bfc79641b539db12dd7cf47405c6f22e132c73396e3f2876f39e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10344 | 16940 bytes |
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