MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous URLs pointing to compromised WordPress upload storage and other disposable hosting. These links likely lead to further malicious content or phishing attempts, indicating a spearphishing attachment delivery vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9954
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://seashoresilverlabradors.com/clients/4/48/482fd9669fb3260065120a60ccac5e48/File/gusufijidemixesofasuz.pdf
- https://collegemahan.ir/basefile/collegemahanir/files/bomipifediguterudonet.pdf
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/93ed437687605fe20d024fa3adecc63e/36120046672.pdf
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16072a34f9c545---vojikofisubukifepifapa.pdf
- https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/fa0a3f261d49b9faa67d7e90393e5003/44189392935.pdf
- http://lisaarkin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/39768733718.pdf
- http://xboxheerlen.nl/userfiles/file/13723911860.pdf
- http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16089cfb360358---57199580.pdf
- http://carrozzeriardue.it/userfiles/files/326485647.pdf
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbac991e3e5---waxenoboxuvumasokabomiwo.pdf
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b889f6f2796---tunin.pdf
- http://bollywoodsalonskokie.com/admin/images/file/sofopuxiwesagikawakejones.pdf
- https://minutesnap.com/wp-content/plugins/super-forms/uploads/php/files/8d991299a7c455cac8acccc61e82de3c/visor.pdf
- https://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/c9tt35atmf3gum5e7ffc4e879h/vibokib.pdf
- http://simonhoirup.dk/userfiles/file/47285687855.pdf
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160aa251f89043---89114523178.pdf
- https://cashcruis.ru/wp-content/plugins/super-forms/uploads/php/files/aeba9875fcc41bacfed71d8cc7639f86/90383661857.pdf
- https://accesoriosalmayor.com/images/userfiles/file/kajeberig.pdf
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/ukrafo0v9hqn42m3pefv21jia3/numimenod.pdf
- https://cottonweb.net/userfiles/file/furogetojogu.pdf
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071d2bfc53a9---nikifiw.pdf
- https://everestart.com/images/stories/file/sewiku.pdf
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/160913a946eadc---diwano.pdf
- http://bagiez.de/userfiles/file/91298031822.pdf
- http://matthewsmillsreunion.com/clients/c/c7/c7863f7b93cb17915b2a89d887155530/File/26635347568.pdf
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/8e9f54e5cad42ca4058149266022d76c/767422389.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=what+is+a+scale+factor+of+4
- 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_off0000f9f3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9F3 | 16792 bytes |
font_01_sfnt_off0001120a.binf2b1eb9c5b89db715961e22364bd51c4cc78904f68312a37609129aa23c405dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1120A | 10400 bytes |
font_02_sfnt_off000129cb.bin8d3b6386d689b18918f2ee01891aaa65512ee915a5e5a9fbdc707311aa59c546 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129CB | 17588 bytes |
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