MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous links, many pointing to compromised WordPress upload directories or disposable hosting, 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, likely initiated via spearphishing attachment.
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://partnerplus30.ru/images/fornews/files/28585355617.pdf
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/4ekmm07dtke1gq10lncchsghp2/zevofuvakukusudefeperunuw.pdf
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ab00064596a---nazekofosenizetupajil.pdf
- http://artdealer.vn/upload/fckimagesfile/7a09eb3e17af988ba90b4a7d67611fcd.pdf
- https://lionkingbali.com/uploads/file/37671680610.pdf
- https://dolaodong.com/userfiles/file/fenerinewokiderek.pdf
- https://zionapostolicministries.org/uploads/file/nusebukebeketijebite.pdf
- http://mobilesamara.com/img/files/file/59195281796.pdf
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a922dd0c17a---mujujuwozenulefe.pdf
- http://pleasanthillpchurch.com/clients/5/55/55aa087cacc886b2254ddcc242c0699b/File/39414485088.pdf
- https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/sd8nucohiqefpse4gihno3s2u6/sebidibuzaxetavasuf.pdf
- http://jiendurancecoaching.com/ckfinder/userfiles/files/22359189013.pdf
- http://akcjonariusz.com/UserFiles/file/nemab.pdf
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a314d18c0da---winubi.pdf
- https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/8asqp9mjs1mbtubddenrnn2uv7/69290496556.pdf
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608440d4cbe12---femadodugozebobiwugewoz.pdf
- https://big-cash.de/wp-content/plugins/super-forms/uploads/php/files/u1b68prauhgtsro6m2nokof5j1/7946043411.pdf
- https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/437df8048b369f9c12040c0618854cb5/gawamorux.pdf
- http://messtores.ca/fck_user_files/file/xaboluxuxa.pdf
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607d568e9aa92---46481477990.pdf
- http://amindoost.ir/images/upload/files/70770458580.pdf
- https://charqueadaboavista.com.br/wp-content/plugins/super-forms/uploads/php/files/476d4eafa8e96da7e9e4e5e2173c4029/notonafotu.pdf
- http://internationalnetworksolutions.net/files/
- https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/daiqros56btvf5034jvm6if5ma/50595723529.pdf
- https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/4dof76mmdtqkmoa1q99setsrvn/94401958663.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=how+do+i+use+a+socket+wrench
- 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_off0000f59a.bin69705c92856805ded9a6d0a90107217fa18a8174f3485c1f9632a4fe375c66ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF59A | 18036 bytes |
font_01_sfnt_off000124b2.binfa048c0d1e99c6e995306411d9870a864aae425bfaeb9df724468b4fed995416 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124B2 | 10688 bytes |
font_02_sfnt_off00013d31.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D31 | 16792 bytes |
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