MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to lure users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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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://krisoc.ru/uplcv?utm_term=bedol+water+clock+user+manual
- http://delshadian.com/public/userfiles/file/sezasowomo.pdf
- https://postelezmasivu-zlin.cz/ckfinder/userfiles/files/pifulukuwivum.pdf
- https://alarouba.com/ckfinder/userfiles/files/8020078849.pdf
- https://juniorclublivorno.com/sitonews/images_upload/files/16528307285.pdf
- http://e3edu.vn/public/ckfinder/core/connector/php/connector.phppublic/uploadsfiles/30501086950.pdf
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081cfa4bb32b---61269708567.pdf
- http://jiangsutravel.kr/userfiles/files/20210813_131343.pdf
- http://animationcoach.com/userfiles/file/wukupokixorus.pdf
- http://www.jokilaaksonratsastajat.fi/file/xejerupujexeluvir.pdf
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/825dff7212d8e45ce420848643f9bce0/navij.pdf
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161135c39464af---27401473944.pdf
- https://carsen.sk/editor_uploads/system/files/vebavuzenonatogosevunani.pdf
- http://luxe-pools.fr/i/File/63593731417.pdf
- http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e772dd3a35e---zitowonifiviri.pdf
- https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/59318ff7470c14fa1c067c571a09a22f/62321441821.pdf
- http://asacnfservices.com/ckfinder/userfiles/files/97075761944.pdf
- https://immo-cjeanpaul.lu/userfiles/files/rogorukimuxosovidupavokag.pdf
- https://ystechpro.com/nbloom/fckuploads/file/petezivuzemoborokepafu.pdf
- http://interno-kazan.ru/upload/files/sadavofamogav.pdf
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a1db6ccdec---nipukulajebuvada.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160847cb98ba58---71239895547.pdf
- https://gofropack.com/wp-content/plugins/super-forms/uploads/php/files/c3a32814820e3d7c56b7083202c6d975/69468590962.pdf
- https://mavibusiness.it/file/dametugidijotodixeg.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_off0000ce66.bin8a2941c331fd992ac32d722f8bc0db80382adaf7b17f437cbed60541470e5362 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE66 | 10768 bytes |
font_01_sfnt_off0000e748.binae45a4683595ca519467f064adad8a0e1e67c2321a94106290cc9dcc1c4913ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE748 | 17752 bytes |
font_02_sfnt_off00011486.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11486 | 16792 bytes |
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