MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links, many of which point to disposable hosting or compromised CMS uploads, suggesting a link farm designed to redirect users to malicious content. The presence of a URL with a 'utm_term' parameter indicates a phishing or scam attempt, likely to trick users into downloading malware. The ML classifier and ClamAV detection strongly support the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://inwebjor.ru/uplcv?utm_term=gta+v+obb+free+download PDF link annotation
- https://gesema.com/UserFiles/file/23485505210.pdfIn PDF document text
- http://eegbiofeedback-leszno.pl/userfiles/file/96207811185.pdfIn PDF document text
- http://suurelepa.ee/data/file/poramilejunuzinunibaso.pdfIn PDF document text
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/8b440ae209a6f2cdc6517fb09d5b562d/pigupukisuxedibaparap.pdfIn PDF document text
- http://h-p-n.fr/catalogue_dynamique/file/gomaz.pdfIn PDF document text
- http://rnralpha.cz/res/file/digaseperenunuzolaxovoful.pdfIn PDF document text
- http://ipsaix.com/ckeditor/ckfinder/userfiles/files/sareretovazamabaj.pdfIn PDF document text
- http://downtowncincyhotels.com/core_degree/admin/images/cms_imagesfiles/18972294859.pdfIn PDF document text
- https://tlkingatlan.hu/kepek/other/file/43539018058.pdfIn PDF document text
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/7516ff823bb5c951d2452c426e054b2c/70843324503.pdfIn PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/ltq9updobjqrddi92getn40t06/renuzewakoso.pdfIn PDF document text
- https://ijfbacknumber.com/editor_up/velinopajorazegoz.pdfIn PDF document text
- http://koovappadyscb.com/ckfinder/userfiles/files/32497478736.pdfIn PDF document text
- http://megaprestige.ru/uploads/files/36347691976.pdfIn PDF document text
- https://anitacalderon.com/ckfinder/userfiles/files/lafuzivewu.pdfIn PDF document text
- http://liveisagenix.com/ckfinder/userfiles/files/11726533178.pdfIn PDF document text
- http://szpk.hu/_user/file/93279953355.pdfIn PDF document text
- http://utpcomp.ru/uploads/files/nomozuperogibokemaze.pdfIn PDF document text
- http://crosswaysrecruitment.com/userfiles/file/ravomeraloveri.pdfIn PDF document text
- https://www.akilciilacdernegi.com/ckfinder/userfiles/files/4470873118.pdfIn PDF document text
- http://besteva.com/upload/files/fusuligavu.pdfIn PDF document text
- https://jager-ig.tw/up_photo/file/vezikuzo.pdfIn PDF document text
- https://kcss.hu/korosi/userfiles/file/zozidutafixepomegatin.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_off0000b525.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB525 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cd37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD37 | 16528 bytes |
SHA-256: 134292c83e52919a6e24e68851fd958198bac9410f803c8457bb56084dd7e58a |
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font_02_sfnt_off0000f762.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF762 | 10416 bytes |
SHA-256: 2bbac1139e9f876a154fed9861a2a86a39674343db807367648a7e3fc4c63741 |
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