MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous links to external websites, many hosted on compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
Heuristics 6
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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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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://wastran.ru/uplcv?utm_term=network+engineer+job+interview+questions
- http://altaprecision.com/userfiles/file/49275817264.pdf
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/c9177283039e088926484a0f7c10efed/fizodovaja.pdf
- https://aduanaldelvalle.com/userfiles/file/bolitupaduja.pdf
- http://buchtel1967.com/clients/26382/File/voxopitemozo.pdf
- http://cancercareresearch.com/userfiles/file/3252239432.pdf
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160afac65026b2---gajib.pdf
- https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/uam5iknsl8r2vmuba81lvtsbbe/takuraxefavegekubog.pdf
- http://btc-ltd.com/upload/file/14281702763.pdf
- http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609cfb6ae3250---47025123655.pdf
- https://llsindia.in/FCKeditor/file/69394206448.pdf
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae9e1d35ae5---xunali.pdf
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ba1b43f055---rikugepogapo.pdf
- https://amenajarisiconstructii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607272034af33---18360515767.pdf
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6bae8aabc---nagosawagolepoporato.pdf
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/fe766c836a69868bd15c9bc43e7f5344/32521808456.pdf
- https://www.corridar.com/wp-content/plugins/super-forms/uploads/php/files/u6d1hkahretapkhblkrr3jla26/kegezetatoket.pdf
- https://capitalsyndic.com/userfiles/file/miluteguxotexitidin.pdf
- http://kperrylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/64513552694.pdf
- http://myphamlulanjina.com/upload/files/85017291970.pdf
- http://ampletrekking.com/userfiles/file/masefe.pdf
- https://seataclightingalaska.com/wp-content/plugins/super-forms/uploads/php/files/188196751577a1c9f2b45de19918d6d3/94442876212.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_off0000e4c3.bin94fc701062bdf540f9eb371139ad47e3f03abe2cc842f0bf2a78114d064cde88 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4C3 | 17372 bytes |
font_01_sfnt_off0001111a.bina06f7906f5593a2ee527b368e17570c3118115526df5861e553f65d60890495e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1111A | 10812 bytes |
font_02_sfnt_off000129e8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129E8 | 16792 bytes |
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