MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
This PDF document was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a ClickFix social engineering attack. The document body, though heavily obfuscated, likely contains instructions designed to trick the user into executing a command, which is a common method for downloading and executing further malicious payloads. The presence of numerous external URLs, many hosted on compromised WordPress sites, suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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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://chcial.ru/uplcv?utm_term=synapse+x+roblox+buy
- http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607562f2e67e8---41678771711.pdf
- http://hani-bee.com/userfiles/files/juranasoturuvudifiburuti.pdf
- http://mygotour.com/FileData/ckfinder/files/20210616_64CF760E8163E556.pdf
- http://keyflounge.nl/userfiles/file/pifasemulufod.pdf
- https://omomediacion.com/wp-content/plugins/super-forms/uploads/php/files/e60869fadbc9adfd8fbb97a6e50f8d96/juguxubugagezep.pdf
- http://ccspatti.org/userfiles/file/32432934106.pdf
- http://lso-msm.fr/userfiles/file/91761243405.pdf
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/1rk9dvta1vfoaanmol5hch0991/60045013546.pdf
- https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/skfp4cguaa5unfuhcasaiphl18/22657336420.pdf
- https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/00a81323a369d6d4126bccf4aed5c323/xisawejigu.pdf
- http://eia-edu.com/userfiles/file/piwenekinipofubokeba.pdf
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/278a2b76d9a418f9aa599e5b99653ac4/47877364305.pdf
- https://supportsystemsvainc.com/home/ssvi/public_html/ckfinder/userfiles/files/nemutidonatefuv.pdf
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/16075fa5d05166---32955433787.pdf
- https://parklanehotel.asia/userfiles/file/26719188164.pdf
- https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609b5b192310a---89524884483.pdf
- http://carlaschroyen.com/content_docs/49849500481.pdf
- https://www.nexidia.it/wp-content/plugins/super-forms/uploads/php/files/57bf35b03862a0027d7980edd6ffcdf4/35287645307.pdf
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606eb8940ec0f---fuliwaxesuluvidojawuveja.pdf
- http://aksaaydinlatma.com/img/editor/image/file/nasusilelupegobu.pdf
- http://vmkmsz.hu/userfiles/file/626286207.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9a995392c5---dezumerarorijelebevetowi.pdf
- https://hssipm.com/wp-content/plugins/super-forms/uploads/php/files/52c516fa96378f4871687dda89b67e2d/23782605294.pdf
- http://sochi-polyana.com/ckfinder/userfiles/files/takenoluri.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_off0000ff02.bin85eba88baa7714b55406946e859dc62c29ce401e9481abc65e197c1d76932f34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF02 | 17916 bytes |
font_01_sfnt_off00012e15.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E15 | 16792 bytes |
font_02_sfnt_off0001462c.bin3878b037c0c45fbf13676bb5f2b19cfec874d58ba371ffa07048ca3b77607058 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1462C | 10584 bytes |
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