MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ClamAV and an ML classifier, indicating it's likely a phishing or malware distribution lure. It functions as a link farm, with numerous embedded URLs pointing to various domains, some of which appear to be compromised WordPress sites. The primary URL, https://infrive.ru/uplcv?utm_term=battle+cats+mod+apk+happymod, suggests a lure related to game mods, potentially to trick users into downloading malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://infrive.ru/uplcv?utm_term=battle+cats+mod+apk+happymod
- http://ordineveterinarireggioemilia.it/userfiles/files/16616303033.pdf
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/1155bf8be5d416b7debeef04cc39bccd/54876986766.pdf
- http://www.udelimpa.es/ckfinder/userfiles/files/19134537576.pdf
- https://dianthusindustrial.com/resimler/files/83314875228.pdf
- http://study4student.com/cache/fck_files/file/jufetopefanojesozake.pdf
- http://hattingtoemrerogsnedker.dk/userfiles/file/45958203592.pdf
- http://mgrima.com/files/file/80562007220.pdf
- http://thibangoto.com/app/webroot/uploads/files/xorobixesaxawoniboso.pdf
- http://silver.jo/ckfinder/blanc/files/14964538422.pdf
- http://mascotdd.com/file_media/file_image/file/48321093216.pdf
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16143dc2b1b72f---xekofavub.pdf
- http://hamishehbaharcarpet.com/My_Project/Hamishe_bahar/ahar_img/files/lufanilububazamakuwivu.pdf
- http://onlinetradeshow.ir/uploads/files/sivukov.pdf
- https://carcarnet.com/home/sandbox/domains/hkdance.tritek.hk/public_html/ckfinder/userfiles/files/murafuf.pdf
- http://maiodi.com/userfiles/files/50472399625.pdf
- https://bbox.ru/images/shared/file/fugukogipufa.pdf
- http://www.protectakoteasia.com/ckfinder/userfiles/files/rirojales.pdf
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/161430cc914f45---fenogovapolosufulogipo.pdf
- https://abrasco.org.br/ckfinder/userfiles/files/sovutipi.pdf
- http://xfswchem.com/upload/files/zofegenupepiluralob.pdf
- http://np-laser.com/upload_fck/file/2021-9-6/20210906173623681153.pdf
- https://tranhtreo.com/images/ckeditor/files/25738076373.pdf
- http://popmetre.com/news/files/65750229066.pdf
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139c0c6bab18---zokan.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_off0000d224.binfda04f6c44ff3f87d9f5931c417b383240e2a2183080eebc8a4e12d2902c9e12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD224 | 16652 bytes |
font_01_sfnt_off0000fcff.bin7f82be58081298475d04f9aeb38602e57224dca94e8bb0c09544201ce41444c7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCFF | 10744 bytes |
font_02_sfnt_off000115d0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115D0 | 16792 bytes |
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