MALICIOUS
212
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF containing embedded JavaScript, flagged by heuristics as malicious and a fake CAPTCHA lure. The document body is heavily obfuscated, but the presence of JavaScript and the fake CAPTCHA heuristic strongly suggest an attempt to trick the user into executing a payload. Several URLs are present, some pointing to compromised CMS upload directories, indicating a distribution mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
Heuristics 9
-
ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
-
Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHADocument displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
-
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.
-
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.
-
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.
-
Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
-
External URI info PDF_URIPDF contains an external URL action
-
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.
-
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://mimpishio2bet.net/contents//files/13181411451.pdf
- https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/7b88d7a57e805692d33b49e1440eb1f4/22414417782.pdf
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce302cc330---biregiwuvibogusujox.pdf
- http://ehomerealestate.org/images/file/43229763319.pdf
- http://personnelstrategies.net/userfiles/file/zogazeradogodalodojaliga.pdf
- http://volkshilfe-vlbg.at/images/content/files/natavabojate.pdf
- https://englewoodgrassfarm.com/wp-content/plugins/super-forms/uploads/php/files/358105971474f729399f3421ae80e086/66984217028.pdf
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6b82e06691---83188279686.pdf
- http://ucinnovation.ru/admin/ckfinder/userfiles/files/37346145502.pdf
- http://uss100.com/clients/5/56/562308f4da1da23328cfd9e5c9f3e68f/File/10794017993.pdf
- https://www.gasserbush.com/wp-content/plugins/super-forms/uploads/php/files/1c8aa3779927c908210f41434987056c/sudodilu.pdf
- https://belhasasecurity.com/userfiles/file/pekasuwusewilefodi.pdf
- http://dlevitin.ru/fck_editor_files/files/9770473380.pdf
- http://burningspearmarketplace.com/js/ckfinder/userfiles/files/16208383221.pdf
- http://dribblebar.pl/userfiles/file/litudapanogapunin.pdf
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/3e422a9d5eebb0cf1b6cd9151d350dc7/sixenodepilepabe.pdf
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a79eb50db28---96846924997.pdf
- https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a2628055a22---wamapawu.pdf
- http://klick-tipp.info/ckfinder/userfiles/publics/files/55223205322.pdf
- https://sinhadventure.com/uploads/file/58508662546.pdf
- https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/acad3d3r9naojpamkecrl2dpg7/89547273316.pdf
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607193477b553---48396241031.pdf
- http://ildungrice.com/fileupload/fckeditor/file/xejuwelipotos.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=albion+online+light+crossbow+pve+build
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f2b6.binb513d26709e096d752af13fb702f18f131f42685fe268f08341f53f86c3d9498 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2B6 | 17364 bytes |
font_01_sfnt_off00011fab.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FAB | 16792 bytes |
font_02_sfnt_off000137c2.binc03a30ff2a86c408f6f2f36186da5c1ad25eda47f1b20fa0f2805a05d7f23b2f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137C2 | 11004 bytes |
font_03_sfnt_off000150e0.bin38db3f80119a50f9945ba5edd9fb88f2824a2b72dc1eef4cbd370b7c73e66f3b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x150E0 | 9576 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.