MALICIOUS
182
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, some of which are part of a link farm on disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to trick users into downloading a secondary payload. The presence of a visual download button further supports this lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
Heuristics 8
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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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://hydratrend.com/application/third_party/ckfinder/userfiles/files/10163012266.pdf
- http://doubler-son-capital.com/photos/files/67392007979.pdf
- https://projetounificado.com/uploads/files/78609837417.pdf
- http://ecohost.ru/pics/images/file/talijujesapobawib.pdf
- https://tennis94.fr/img/pics/files/padixujeretinirireso.pdf
- https://detskeihriska.eu/ckfinder/userfiles/files/88952728889.pdf
- https://prcomponents.com/ckfinder/userfiles/files/pukipazibisofax.pdf
- http://yingtailong.com/upload/file/210907141723980720r1otv1rej1we.pdf
- http://aktifbant.com/resimler/files/63040638039.pdf
- http://studiotecnicopetrillo.eu/userfiles/files/xewifu.pdf
- http://vagtteam.com/userfiles/Files/16120968103.pdf
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/1tmdkgpcmd3u7ltda9tee8sqjs/furodivamuriwaxiwos.pdf
- http://rjt1.org/upload/files/89621269785.pdf
- http://self119.net/upload/userfiles/2021/09/files/210906155357.pdf
- http://bananamusic.tw/uploads/files/202109101255447885.pdf
- http://dfanchem.com/upload/files/malosazudutaka.pdf
- https://hophamthaibinh.com/upload/files/32852418891.pdf
- http://wcsps.com.tw/ckfinder/userfiles/files/nitemosefilapilowufopes.pdf
- https://3rproject.eu/ckfinder/userfiles/files/liminiwaxegawanijofirati.pdf
- https://nguyenthelong.net/userfiles/files/delukuketago.pdf
- http://nutranghongngoc.com/media/ftp/file/rifuvixopipop.pdf
- http://tw-echen.com/uploads/files/202109130854073954.pdf
- http://arredamenticucinesiciliane.it/userfiles/files/82845199704.pdf
- http://www.uc-kushiro.net/images/library/File/23908804707.pdf
- http://www.erealitysolutions.com/tennisontario/assets/appsadmin/js/ckfinder/userfiles/files/mokavajexewozusupoxi.pdf
- http://fulepmark.hu/nyebu/fulepmark/userfiles/file/7003445947.pdf
- http://techniq.ae/admin/uploadfiles/file/83120369113.pdf
- http://rjt1.org/
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=garena+support+base+apk
- 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_off0000d1d5.bincc242aa39b2028d60031d2c635f717de43e25a603345b94a0e757bc0a7902c20 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1D5 | 10480 bytes |
font_01_sfnt_off0000e99a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE99A | 16792 bytes |
font_02_sfnt_off000101ac.binfd686eb530d6c1e7ca7b3c6a65e1bdb87d8bd3fb48a49c4b4b913727a195bf18 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101AC | 20740 bytes |
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