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 URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://archism.ru/uplcv?utm_term=download+kknd+krossfire+for+android PDF link annotation
- https://hongmao.tw/uploads/files/202109041528164141.pdfIn PDF document text
- https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/032bb6022462e5e3347638091f70432c/62737418742.pdfIn PDF document text
- https://gogift-it.com/userfiles/files/jumebu.pdfIn PDF document text
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/161337941d1ed4---58059318126.pdfIn PDF document text
- http://thietkewebbacninh.com/webroot/img/files/pulevut.pdfIn PDF document text
- http://ersatzmonitor.de/userfiles/file/68146063102.pdfIn PDF document text
- http://aviatechinform.ru/sadm_files/zijovezajedowofapetubu.pdfIn PDF document text
- https://redac.ch/upload/gopapikumudebisuses.pdfIn PDF document text
- http://madmojo.com/fckupload/file/gasebatakoxazirutepo.pdfIn PDF document text
- http://avstralianature.ru/ckfinder/userfiles/files/59039323660.pdfIn PDF document text
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/161338c00426a1---16402783260.pdfIn PDF document text
- http://antwerp-reefer-tournament.be/argt/files/83842304771.pdfIn PDF document text
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1613acbd93d926---kilemafit.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/nu7s3pkd3v2ce9ng7vl3us5o72/80006444836.pdfIn PDF document text
- https://inprovitchile.com/ckfinder/userfiles/files/varonajuregasijuzizes.pdfIn PDF document text
- https://gedayapi.com/userfiles/file/88149912519.pdfIn PDF document text
- http://dentalclinicbangalore.com/uploads/litupe.pdfIn PDF document text
- http://www.vljainandco.com/userfiles/files/zojodiji.pdfIn PDF document text
- http://fashioneducation.ru/userfiles/file/16749117322.pdfIn PDF document text
- http://eszixv.hu/ckfinder/userfiles/files/resibudukifalunowufifoju.pdfIn PDF document text
- http://fcvperu.org/data/fcvperu/userfiles/file/91633359348.pdfIn PDF document text
- https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132cca20292b---44738863943.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_off0000c698.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC698 | 10428 bytes |
SHA-256: dd14dd4964eb04c51765ebe9e8bfa34d6d3b76d52f060a8a448c02ede1f33f82 |
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font_01_sfnt_off0000de5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE5E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f670.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF670 | 17404 bytes |
SHA-256: fa0188890690b8a1eb02d0c3f66f4b9c2d13ac6af647f3db8b4c77ecb37aab67 |
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