MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document is classified as malicious by ML and ClamAV, and exhibits characteristics of a phishing lure. It contains numerous links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to distribute malicious content. The document body, though heavily obfuscated, appears to be related to 'Gta 4 free download', a common lure for pirated software which often leads to malware. No scripts were extracted, but the PDF structure and URL patterns strongly indicate a phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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=gta+4+free+download+full+version+for+windows+7 PDF link annotation
- http://autosoftware.company/autoresponders_images/files/26774846842.pdfIn PDF document text
- http://ascensionchina.com/userfiles/file/duposigepirafazosaziw.pdfIn PDF document text
- https://shayangroup.net/wp-content/plugins/super-forms/uploads/php/files/8acafefb4d8b5e3fdfd1e9f5f5ca7743/fejukodipizu.pdfIn PDF document text
- http://hasyo.net/files/file/59010666890.pdfIn PDF document text
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/cmf1it84mb4udftqmii0do9cl7/10955231239.pdfIn PDF document text
- http://colorfulmedia.de/fotki/fotki/file/92810992310.pdfIn PDF document text
- http://computer-rudolstadt.de/upload/file/zapevofivozonoxen.pdfIn PDF document text
- http://cloverpark1961.com/clients/6/6a/6a73a08bb68f643008adb5efbbb44e43/File/73461177915.pdfIn PDF document text
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/160833485f0491---57531038532.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160acde6a553ae---72639666855.pdfIn PDF document text
- http://ypdtools.com/ckfinder/images_store/files/52637296278.pdfIn PDF document text
- https://www.webplease.it/wp-content/plugins/super-forms/uploads/php/files/bf8c36u897vg0k5a193nketp4o/73677551589.pdfIn PDF document text
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160985d13c6eae---54861246545.pdfIn PDF document text
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a53d235f3b3---warariwafik.pdfIn PDF document text
- http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/td3tdgu9eceohup68bja490u96/gidokadaradipemibejidizov.pdfIn PDF document text
- http://amexeuro.com/an3_Uploads/file/jivikatapenalufid.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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/1In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f10f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF10F | 5252 bytes |
SHA-256: c06f5a3fac8a2c8ae230caf1de5f330d3d7f133db7682e949df329ca7e5b4b5f |
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font_01_sfnt_off00010329.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10329 | 10420 bytes |
SHA-256: 09ee691679554c51df01f2f2ab7a372b21e2bd27261c31bfec68749ff8d181e9 |
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