MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and a machine learning classifier. It contains an embedded JavaScript stream and a large number of external URIs, many of which point to compromised WordPress sites. These links likely serve as a link farm to redirect users to malicious or phishing content, a common tactic for initial access.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://laborke.ru/uplcv?utm_term=dogs+get+scabies
- http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/1609d849bce9fb---zukexekora.pdf
- http://www.anjhimayath.com/upload/file/6213935771.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/k260gu72v5aj30tmvvca536be6/repalumiranidopu.pdf
- http://fsoa.cn/userfiles/file/penafoxa.pdf
- https://myparrotfood.com/user_files/files/tetesetulanorini.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/116acfe1c6420251d0ac9cb4d945b943/12891801247.pdf
- https://robinio.de/wp-content/plugins/super-forms/uploads/php/files/4kvf517bsb3t0unpi2jl597fff/48836751688.pdf
- https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/05f0eba0b94a664dc721101dde35f04b/83636991301.pdf
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/f906d86f23c11640b8b0ab998aa7a48e/birefigogivovikise.pdf
- http://xn--xhq021fvrwdth.com/d/files/lexopazezoruxodugulurez.pdf
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160d2d7fe27266---26678440714.pdf
- http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607becb20bb5a---vitejiwonexukiju.pdf
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160999f4a9424c---29934679366.pdf
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/627177ad20dcae6b1f1a8a2ba6f5c592/mutagesivi.pdf
- https://store-connector.com/_upload_bilder/_filemanager/file/79002889205.pdf
- https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/16093df2b1586e---zumusalorelulabu.pdf
- https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/fdkfiuutamuit5qek55uuqg941/74859714894.pdf
- http://dspec-car.com/js/upload/files/45967519662.pdf
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098661f0d79d---newipupopefega.pdf
- http://manavpublicschool.org/manav/userfiles/file/25499786504.pdf
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160724a227f29a---98193529890.pdf
- http://rolmech-strzelno.pl/Upload/file/dalizozaxojug.pdf
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160be140e516c3---xifidok.pdf
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160d688173c173---rubobijomejapozabugosepik.pdf
- https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/2c2925a6976a25823ed7eaed6b9842dd/witozapanuverovibuwagas.pdf
- http://maidnheaven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc2f67015a---59967767716.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_off0000ea69.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA69 | 16792 bytes |
font_01_sfnt_off0001027b.bin938d4dce0c4d3eca32a01b0e98533b8e7e09f9550322f38460725425f938d9da |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1027B | 16388 bytes |
font_02_sfnt_off00012d0a.bin6b101b147ad63265f7c0060c168f6276ce424a670ab05e476c20df16e4bb2f1c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D0A | 10296 bytes |
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