MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and ML classifiers, indicating a phishing or trojan threat. It contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS upload storage or disposable hosting, forming a link farm. The embedded JavaScript likely facilitates the redirection to these malicious sites, which are designed to lure users into providing sensitive information or downloading further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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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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://archism.ru/uplcv?utm_term=forgot+my+gmail+password
- http://panel2conso.com/userfiles/file/94313699147.pdf
- https://odontologosmalca.com/images/userfiles/file/bilewa.pdf
- https://rimsball.com/ckfinder/userfiles/files/werinagabovisutiza.pdf
- https://xcheck.vn/uploads/userfiles/file/94508261213.pdf
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/16143142028965---pepavedipojubofu.pdf
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/aaee1cba5a65dd610886f8cd213880b9/jolalo.pdf
- http://stsmcc.org/www/js/ckfinder/userfiles/files/xirowidimovokad.pdf
- http://sinners-party.de/media/file/33152086797.pdf
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/4oh7kiqonrm7ovuug7ki8i4pnk/risobenujopisiropu.pdf
- http://www.singchai.co.th/ckfinder/userfiles/files/95757702761.pdf
- http://gdfsztal.com/uploadfile/files/tenufarafunirumunokamos.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c3410e7d3bb956955641cf0e66cd0cc8/81822995058.pdf
- http://slsnn.ru/content/files/votepefarofogud.pdf
- https://samsunyapi.com/userfiles/files/14725162839.pdf
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613aca97565a4---27979031536.pdf
- http://www.xn----9sbkvfu2aex3d.xn--p1ai/ckfinder/userfiles/files/bakod.pdf
- http://lse.hu/userfiles/file/vafilenegasutoduwekajat.pdf
- http://abwferrellpkwy.com/uploads/files/50040438912.pdf
- http://doorsatyrau.com/ckfinder/userfiles/files/46396829862.pdf
- https://blnk.eu/userfiles/files/16909859939.pdf
- https://pielinks.com/UserFiles/file/tujomifupagavasoledi.pdf
- http://eko-baby.ru/userfiles/file/maguxovixajagegejifesux.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_off0000b15d.binc5432678167d2a4ff2c9c3cc72018ace6c0f0a904d6653059dbe8cd70c188443 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB15D | 10676 bytes |
font_01_sfnt_off0000c9b9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9B9 | 16792 bytes |
font_02_sfnt_off0000e1cb.bin6e1afbf52c9e2d286ad7bc1024251216b0e4ab80478b15aa53e8dd34bfbc9d3b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1CB | 15960 bytes |
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