MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, containing numerous URLs that point to compromised CMS upload directories, likely serving as a distribution point for malicious content. The PDF's structure and embedded links suggest an attempt to lure users to malicious sites, potentially for credential harvesting or further malware infection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 6
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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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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://huntic.ru/uplcv?utm_term=black+jobless+rate
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e99d6069a---51674802715.pdf
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc279b8331---parewaxesazitekoga.pdf
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/a97b241dadaac266c2888981fb141159/nuziwinafag.pdf
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a93b5a0ec8---tekalefinuxemufi.pdf
- http://security-m.jp/tool/images/file/66410884797.pdf
- http://tivatijapan.com/uploads/userfiles/file/pagum.pdf
- https://pensiunea-escape.ro/ckfinder/userfiles/files/13959289496.pdf
- http://tuzvedo.hu/elemek/file/39961082359.pdf
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093450fbf8f2---xubozeronazi.pdf
- https://alihuata.com/userfiles/file/jidogeveka.pdf
- http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607d01eb135d9---zeribenodim.pdf
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a63d410da18---65932512568.pdf
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607b320fa9266---67038925169.pdf
- https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/ea08460eb3209721c274494ef0469cf0/nipesirasexupiwosasamow.pdf
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/d3a1fc40b9e56880b2a6b38d4ce60d93/26417458882.pdf
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/433432f69dd51d0eae9bd0ddcbef299f/woweweb.pdf
- http://praguetransfer.com/files/file/46851625396.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608eff31437dc---rewijejizofuleditas.pdf
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/95254d33359301663176b62f1aa1feb3/tujorakolev.pdf
- http://zoncmswebsitebeheer.nl/files/editor/file/tixegapirufojorinibevetaz.pdf
- http://www.bluewhaleline.com/image/upload/File/76004657471.pdf
- http://backupcenters.com/userfiles/file/702776700.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_off0000ecf7.bin588f90676edc4bf59da55e60c07ca0706db8851d0f4c3130101d16c5fe4c1871 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECF7 | 10444 bytes |
font_01_sfnt_off000104e7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104E7 | 16792 bytes |
font_02_sfnt_off00011cf9.bin1712b32f523fd7cff4e1bcedc0ee6953146cc6ef75268bd283533cc1e7ebd919 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CF9 | 17024 bytes |
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