MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ClamAV and an ML classifier. It contains a link farm pointing to multiple compromised WordPress sites, which in turn host other PDF files. The presence of external URIs and the nature of the link farm suggest a phishing or malware distribution campaign. No scripts were extracted from this sample, but the overall structure indicates a multi-stage attack.
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 https://archism.ru/uplcv?utm_term=suga+dynamite+outfit
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f33c859579---54992050498.pdf
- https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d2cdeca44d---47910072115.pdf
- http://baohanhranghm.com/upload/img/files/tabiderelirurapojanewin.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a9f011f1a97---6683053308.pdf
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8dbbb885bd---jazadonaxelotepizapal.pdf
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609df54db7b53---litaluxusefosulerax.pdf
- https://condicionamentofisico.com/arquivos/file/pexulugibofun.pdf
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a3543f7d6ab---97800853144.pdf
- https://myphi.biz/nbloom/fckuploads/file/26056192825.pdf
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160a0c34ab3245---gizopufadopirojutejewiloz.pdf
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc122036695---jilomisazugobaverumut.pdf
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ca70176868---93403442464.pdf
- https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/160a38291da74c---ruzuzi.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/85b679a181e38e826cbaf90d2d118bad/xopaselunazurugifose.pdf
- https://topclassgreenery.nl/images/file/tukemuvepaber.pdf
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/nbj6blmqvgh87fhshm1n7pnsjf/peladuwugonaduf.pdf
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/ceff7dfa9e8b6e855c4d3fe5e9c31467/bovizufopod.pdf
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b3521d405a1---dojebetigejovunuleber.pdf
- https://ceccarbotosani.ro/userfiles/file/sometijawigesafapasobu.pdf
- http://clairerolo.com/userfiles/file/rimuwamikixotopewa.pdf
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609f73e13046e---sabawusuwubukudoz.pdf
- http://menloathertonhigh1980.com/clients/6/6f/6f83464fe0b13873896cace574d4baa5/File/90737416992.pdf
- https://www.eziblank.com/wp-content/plugins/super-forms/uploads/php/files/r3ean67vmqva1uuqavuqdk0bp1/folakupakakafifilir.pdf
- https://ambientltg.com/wp-content/plugins/super-forms/uploads/php/files/9d8aa6aab183e5b40cc9e24ecbc893cf/kimikojulizav.pdf
- http://degrossier.nl/uploads/file/99702562954.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_off0000f316.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF316 | 16792 bytes |
font_01_sfnt_off00010b2d.bin1b4229bd0168f724686d38718b33b8dcb8943f53a318f91f6d1541b74f489cf5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B2D | 10672 bytes |
font_02_sfnt_off0001237d.bin6149010acc2db6a0dd1493f33944a0b4ab0ae655bf41574aef7c8899469d3bd3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1237D | 30172 bytes |
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