MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing and trojan threat. It contains numerous links to external sites, many of which are hosted on compromised WordPress installations or disposable domains, suggesting a link farm designed to redirect users. The presence of a 'download button' lure and instructions for a password-protected archive further support a malicious intent to trick users into downloading a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 8
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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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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://pistant.ru/uplcv?utm_term=windows+loader+for+windows+7+ultimate+64+bit
- http://studiotecnicolamanna.com/userfiles/files/popibufozepejukazutetovo.pdf
- http://microcement.ua/userfiles/file/39055740191.pdf
- http://nutrizionisti.eu/public/thread/risorse/file/zulakuzupiribado.pdf
- https://asoriofrio.org/ckfinder/userfiles/files/jodiredikefote.pdf
- https://bancodevida.com/bancodevida/admin/images/image/file/roruzilimukunekomape.pdf
- http://hp-cnc.de/uploads/files/44439795453.pdf
- http://ilturismoinitalia.it/userfiles/files/bowegajepon.pdf
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/9dfdba2fbe5a7331d1463c74b078f25d/98640363128.pdf
- https://npkfertilizerproduction.com/d/files/fokipupunaxojosub.pdf
- http://solarissoft.com/img/userfiles/files/nidevofidufomesowexajeju.pdf
- https://hoangphatdanang.com/uploads/image/files/32706625066.pdf
- https://unosms.us/userfiles/file/bukigalikamuruna.pdf
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/904fd3614bce5fb89a20a2d8683325b5/35699385537.pdf
- https://thefertilizergranulator.com/d/files/37878299841.pdf
- https://nazragame.com/calisma2/files/uploads/pupiwejuwanejuved.pdf
- http://fuhua.tumujike.com/assets/upload/files/202109071059291796.pdf
- http://law885995.com/upload/fckimages/file/86671325256.pdf
- https://vrindaindia.com/php/joseph/uploads/file/wejaroxojetetafelizifoz.pdf
- http://wideanglepackaging.com/ckfinder/userfiles/files/53248613490.pdf
- http://marinda.ru/pics/images/file/jalatijibimejuweneko.pdf
- http://abwingssuffolk2.com/uploads/files/pufelinipowo.pdf
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/16146a8f1d0c3c---gizogata.pdf
- http://vln.nl/files/file/kopumonoluzofagidakib.pdf
- http://jjw-led.com/userfiles/file/6213951568.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_off0000cf17.bin671c00bd2a07f617a68fa9ef0a1abb1e4afbc50f2824003493ef5644826d2b5a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF17 | 11128 bytes |
font_01_sfnt_off0000e933.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE933 | 16792 bytes |
font_02_sfnt_off00010145.bin1dd67c20ed16cbcaff96a162328182e9faafb4fac7864416b31a057e002adaa8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10145 | 18604 bytes |
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