MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or trojan delivery via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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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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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=www+robux+codes
- http://3mfa.com/images/editor/files/rapides.pdf
- http://touristclub.in/userfiles/file/14223358626.pdf
- http://fermobkorea.com/userfiles/file/20210904235201.pdf
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/161364f6aa3821---83028930597.pdf
- http://guidesdugrandlarge.fr/images/import/file/37247489708.pdf
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614644d492ce9---85072213470.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/e74316e43ce52c7c0da70b19d31082f1/7203139005.pdf
- http://cyklo-sport-servis.cz/UserFiles/File/nesijobofezonomix.pdf
- http://managhantasala.net/mailuserfiles/file/lebeve.pdf
- https://totounited.com/contents/files/rexefo.pdf
- http://murito.fr/ckfinder/userfiles/files/38208698351.pdf
- https://www.sterlingsez.com/ckfinder/userfiles/files/dejumoteraninafugiva.pdf
- http://vandervalk.reviews/app/webroot/files/userfiles/files/jibelixojiradipab.pdf
- https://mayxaydunghoangphuc.com/userfiles/files/wulemurop.pdf
- https://s-h.cc/uploads/files/202109051924425195.pdf
- http://mayinmaunhat.com/upload/files/54808912735.pdf
- https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/ece1f6055eb29142f7b422bc8cae3cc6/zadafebeduwejiwumurofu.pdf
- https://ags-car.com/upload/files/71617960378.pdf
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/c08844393a7ce0824371cd5119d3e494/83033365612.pdf
- https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/c91e0949b876e6643e4ecac0c0b99bfc/dugakelupidebubudapoke.pdf
- http://viettranslators.com/webroot/img/files/11608365365.pdf
- https://solener.info/ckfinder/userfiles/files/6886062032.pdf
- https://dildendilecevirievi.com/upload/ckfinder/files/72438297859.pdf
- http://reanda.com/jingkelun/userfiles/files/20210908144935.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_off0000af93.bin1317f53a2e66d97701b6c6e892922cb7d80c81f88dae22ba1ce132684e5f9ed6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF93 | 10280 bytes |
font_01_sfnt_off0000c6e1.bin7735d3a9084bd43043861b984a482a29f4577885de8ec857d8cb73e73ed513c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6E1 | 15152 bytes |
font_02_sfnt_off0000ed31.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED31 | 16792 bytes |
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