MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1055.012 Process Injection
T1204.002 Malicious File
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with many URLs pointing to compromised WordPress upload directories. These links likely serve as redirects to phishing or malware distribution sites, a common tactic for initial access via spearphishing attachments.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072fb7411c98---20638591502.pdf
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b73374dfbe8---juwisutomiwurisofuz.pdf
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/11d761accd88d8c9e27798419b4b0dce/89206037379.pdf
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/e24a20e6912e13a91fbe2564db6fae00/67627572711.pdf
- http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/p797ib8tl69230fqt52240a0tt/vikunuporas.pdf
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078298aecc50---5079999828.pdf
- https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607da20a19ae7---xifubobufu.pdf
- https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/pl0u3965pa305idumr7r9lel7h/87913266559.pdf
- http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606f09e97c534---62024731073.pdf
- http://espacioschillout.es/images/admin/file/wutex.pdf
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/dd4a095325dedcff4b73a32dc0c93624/bofawixuvawotawuf.pdf
- https://cortopolis.ar/userfiles/file/36869890254.pdf
- https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160892a9756eba---tubusufoburaruriteba.pdf
- http://johnmichaelharrisonlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/dabopi.pdf
- http://jamesirvinewedding.com/clients/f/f9/f947a18657f5d77a8fcd192ffd4ccf25/File/26350846135.pdf
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/a6724c1835944b241f5f1a68d4972dd9/41484099325.pdf
- http://ggmtc.net/userfiles/files/dovaxebiketatagel.pdf
- http://otoozevran.com/resimler/files/wikuvekipu.pdf
- https://cdmsig2.com/ckfinder/userfiles/files/vewovisilavipafi.pdf
- http://bsbcarpet.com/userfiles/file/384320801.pdf
- https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/4dbp0vsg0g7dgd4t7d63rj4fn2/wizalamipajasilaxafepeda.pdf
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/f4dcd85abacce7600f9c23867af365d2/38150694002.pdf
- https://airflow-skateboards.com/userfiles/files/63876384847.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=aspirin+smell+like+vinegar+when+it+goes+bad
- 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_off000100c4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100C4 | 16792 bytes |
font_01_sfnt_off000118db.bin772e793cc001a0e0c33cbf102b7292322b2d4083691446934a3c41f250b249ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118DB | 11204 bytes |
font_02_sfnt_off00013283.bindc8088c77714ee6a40b71baf9d0819f32d4966d38feb4f2373479a2de9e23aef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13283 | 17208 bytes |
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