MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress sites and other domains, suggesting a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the nature of the links and the detection as a trojan indicate a high likelihood of malicious intent, possibly involving the exploitation of PDF vulnerabilities or social engineering to lead users to harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160811cba2e782---vebopebojevivagaxewa.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608053597b68a---bujefuxomekuxe.pdf
- http://automsystem.com/UploadFile/file/20210508071723173.pdf
- http://shlawllc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kamujo.pdf
- http://ambvetfanini.eu/userfiles/files/80730670170.pdf
- http://bagiez.de/userfiles/file/37044147256.pdf
- https://resonanceacteurs.nl/userfiles/file/ligisotozomafetozidujap.pdf
- https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/7b7c03fd318f3800732aa57dbbca11b7/gerefav.pdf
- http://www.toeterloeh44.de/files/vunagawevemalowinipari.pdf
- http://nbpcpentecostalchurch.com/clients/65183/File/17906735418.pdf
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608074c5ac1b4---17834960488.pdf
- https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/fe340b543bc1d7933be314ed85887692/29897473988.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a5cd35c98aa---87918108089.pdf
- http://makingtheturngolf.com/clients/9/92/925d9bae4ecf380f28dbe0e1390c16eb/File/mojinebu.pdf
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160a2875e28633---36348274476.pdf
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16095c9e57ed2f---52796500268.pdf
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1d091b6b35---xifitof.pdf
- http://aksaaydinlatma.com/img/editor/image/file/kodomis.pdf
- https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608205653b75a---11705329083.pdf
- http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/160703c395a573---32394978379.pdf
- https://www.ideaklinik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d7e9239203---54981360781.pdf
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c51590d73a5---86814727592.pdf
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/ea16396a78b267cc9f07e540b6896907/rezajevarer.pdf
- https://samsungdvmklima.com/upload/ckfinder/files/57408498025.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=computer+networks+a+systems+approach+4th+edition+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_off0000fd2a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD2A | 16792 bytes |
font_01_sfnt_off00011541.bin78cb1a57981540fde11aacca0e2fd662a8a54773444aa7220e09511dafc9241f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11541 | 11340 bytes |
font_02_sfnt_off00012fe8.binbdb60289ffd6199f54d4546f5f49d2614176ec8fbe73ab7570151be000ab0456 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FE8 | 18092 bytes |
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