MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. The 'SE_BROWSER_INSTALL_LURE' heuristic strongly suggests the document's purpose is to trick the user into installing malicious software disguised as a browser update or extension. While no scripts were directly extracted, the presence of numerous external links, some pointing to compromised CMS uploads, indicates a potential distribution or redirection mechanism. The document body is heavily obfuscated and unreadable, preventing a more detailed analysis of its specific social engineering tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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 http://tungalag.mn/userfiles/files/95030479235.pdf
- http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc4dad388d---pogamobowexenarepotibino.pdf
- https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/u638rnktu0jah242i8cihhjon5/zedal.pdf
- https://btcauction.vn/hinhanh/file/dozabudut.pdf
- https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609b61669b790---89463923833.pdf
- https://sport-jicin.cz/dokumenty/69711348334.pdf
- http://www.yoko-ono.be/images/userfiles/file/58384548454.pdf
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/a581f05bf449980e2c846d8afa840254/73620856782.pdf
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609732d413a1d---weverasiperolazagapuje.pdf
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609c7e1a080bf---nivuzove.pdf
- https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/2c4c2ecc13f933122fe67bf2369852e0/sijatikanu.pdf
- http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160bc8ef0bb0c8---vetupajojuvifesetufeji.pdf
- http://bannermaul.com/userData/board/file/kenejodox.pdf
- http://progfin.pl/userfiles/file/86111938577.pdf
- http://ahkjt.com/upfile/file/35905409636.pdf
- http://stlnsk.ru/uploads/file/77137991754.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfca392f538---8855098954.pdf
- https://stiff.pl/ckfinder/userfiles/files/23725733407.pdf
- https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/8nh0o1higjbqoavefi8sedhch1/taxakob.pdf
- http://valdhans.cz/userfiles/file/83873512834.pdf
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7d3c03f628---xudawamamot.pdf
- https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/a0c32t00tcicil351av8jfrk3p/gudesetodukev.pdf
- http://csc-0898.com/userfiles/file/20210608093148_jf3tzg.pdf
- http://www.findvoters.com/userfiles/file/wunofunevir.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/s9bu9dmukeinlq2agjgo9q7ecj/bibikaze.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=save+onlyfans+video
- 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_off0000e81a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE81A | 16792 bytes |
font_01_sfnt_off00010031.bin7efe02dc8f08ede2860be925dd7ad221060b360909a9e12171767e9f44f1bd75 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10031 | 10404 bytes |
font_02_sfnt_off000117d5.binc8260948902ff776c183700fa4ad0ea6afdcafc2045d7d94ee2ab60060c6a48b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117D5 | 17252 bytes |
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