MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs pointing to compromised WordPress sites, indicating it functions as a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure points to a malicious redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
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 https://huntic.ru/uplcv?utm_term=state+the+type+of+sentence+we+have+made+progress
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160775c83b5164---6113950005.pdf
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b537cacd7d---23187078593.pdf
- https://batikatravels.com/userfiles/file/49457469211.pdf
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/16073504c5f3b6---98334934536.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086b01e8bebd---rotopiretitixise.pdf
- https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/6fb82a147a5e43d39ada684d3f2192e5/tuxetitu.pdf
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/lu3tjsb2kni1on41gm7gbhkci1/5141909332.pdf
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b0fcb030126---66989915307.pdf
- http://stroisvias.ru/userfiles/file/tigisinopinuxaviwuzib.pdf
- http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b7a7c60e0d---namulivubevopo.pdf
- http://lightningriskassessment.com/ci/userfiles/files/lupusometufirefok.pdf
- http://alkanboya.com/files/file///18015419356.pdf
- https://eseninternational.com/uploads/files/poxuxa.pdf
- https://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/99ad46f371c0d376c5256548dc13bfdc/ropotuzeg.pdf
- https://petek.biz/resimler/files/73482646333.pdf
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e8cd1e9e6b---solidinosev.pdf
- https://grand-forge.ru/wp-content/plugins/super-forms/uploads/php/files/befa904d67ba54fc892706e80493bfdc/bezafikiliwevazixe.pdf
- https://uleshuzataruhaz.hu/files/file/bigijawipidurodir.pdf
- http://www.moyekolodin.com/files/tarofezasupijajivezok.pdf
- http://manninareunion2012.com/clients/0/03/03b30fdf9aaeeba733afadbef254ff7b/File/supawenogulububave.pdf
- http://alrabbancapital.com/file/files/podituxomuxitutotiwi.pdf
- https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/0293e314cd6dbc07f422264b99aa2e82/70633929040.pdf
- http://minerva-collection.net/files/files/98715165978.pdf
- http://www.chatanakonci.cz/userfiles/file/tejusixixo.pdf
- http://gruppocaminiti.it/userfiles/files/gukosigalapolugonusab.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16077c152e0957---tuwipetonanavupizo.pdf
- https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/937d21821c23288352eca6890874965c/63019869161.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_off0000fc10.binf8700e22cbefa17f466feb66cfa644db292f6155e06576134639cbd1be9db731 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC10 | 16720 bytes |
font_01_sfnt_off00012745.bindb806a363fcf48be75e1f5f0b08f7c0814b32fa21792a8f9979b28d91006e8cc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12745 | 11272 bytes |
font_02_sfnt_off0001416f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1416F | 16792 bytes |
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