MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to potentially compromised websites, suggesting it functions as a link farm to distribute further malicious content or phish for information. The presence of embedded URLs and the nature of the heuristics strongly suggest this PDF is part of a phishing campaign, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://nomylo.ru/uplcv?utm_term=search+in+pdf+php
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16094b2bae9c88---66369695474.pdf
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/4g93dba4mfivlko39eubk584tr/kemuxojuwiwolo.pdf
- http://guides2alpes.fr/uploads/file/lezadatozoge.pdf
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a39921c834---56327469249.pdf
- http://hjtech.org/admin/upfile/file/sifetewegexa.pdf
- https://hartwellcook.com/wp-content/plugins/super-forms/uploads/php/files/fe370f1f8440fb8f40c696f58c07aab4/57166690527.pdf
- http://ck-tct.ru/userfiles/file/pomagi.pdf
- https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/27d4b414110d1dd19bdef7387ecf8198/95329540495.pdf
- http://maxkbm.com/clients/2/28/28fcaa936e2ecbeb6c9a97ea0f1ab253/File/90906236033.pdf
- https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/4c59407b40659ea74c5673358f51badb/95090592574.pdf
- https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/5amjitb33p7qvp4lavkem4p6i7/keludotesaxel.pdf
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b1f3301d055---65159679383.pdf
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/d06e6112aa1a60743f25b4203be6ff5b/25266611777.pdf
- http://omgmediatank.com/userfiles/files/luguxadugowilexupovat.pdf
- https://lncl.org/ckfinder/userfiles/files/14581519578.pdf
- http://banghetretruc.com/media/ftp/file/dederaxugalawabexozib.pdf
- https://youstore21.com/wp-content/plugins/super-forms/uploads/php/files/711274a991ee4eb09eac8018c2adb54b/90375501067.pdf
- http://jar-ted.pl/file/68662026926.pdf
- https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/9a08qglgd0117guuvlfli5fao7/rixizizigilesunufavuke.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/16071ce639c113---tujofilojuwojimide.pdf
- http://crabandclaw.com/uploads/files/fubenukowotopemarugopo.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_off0000bd3d.bine8a9278286c2b845a63e883573d9ba4ab00c115c9febfb039e87d785110a1841 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD3D | 16964 bytes |
font_01_sfnt_off0000e986.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE986 | 16792 bytes |
font_02_sfnt_off0001019d.binc5b14472470bb3080fedf81080620510d69e884269c0dc21eb69012fd3a9f57a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1019D | 10360 bytes |
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