MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links pointing to compromised websites and disposable hosting, suggesting a phishing or malware distribution scheme. The PDF structure itself does not contain readable content, indicating its primary purpose is to host these malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://smidgel.ru/uplcv?utm_term=physical+characteristics+of+water+pdf
- https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/9trsogrnql1ts4qqapsif6is17/58175030489.pdf
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/d66d6fosm7f1sddml30anm8qoa/kozowapetezixokis.pdf
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c97a6b59d18---kewufojinamibojipujaleraz.pdf
- http://www.maderas-navarro.com/ckfinder/userfiles/files/vasezapetobukajasu.pdf
- http://tutaylamhet.com/storage/ckfinder/files/tosuwutalijufiwaguke.pdf
- https://accu-split.com/userfiles/files/nurimukepukonedoxite.pdf
- https://napraforgohotel.hu/upload/file/kudojuvonigo.pdf
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b58e9a8c045---boveminetuvivere.pdf
- https://amitadevnani.com/userfiles/file/43500396490.pdf
- https://alteanetworks.fr/img/file/93051825606.pdf
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/tot0j2sj13bc3a648hlf61p8n1/mofimawuvetanejosiwugom.pdf
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef5bae7067---75693499132.pdf
- https://anmimar.com/royal/userfiles/file/69827715721.pdf
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d2f3abe57c---somigezakisuxesawabow.pdf
- http://etabetasurvey.com/userfiles/files/zugawuwebuwapebebupabuwi.pdf
- http://yeosingol.com/FileData/ckfinder/files/20210618_3EBC2CC1C969D32C.pdf
- https://tigercabinetry.com/wp-content/plugins/super-forms/uploads/php/files/5a73d5f29c1b9a1540f587f6bb802e54/30107823808.pdf
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f477f6c979---79555179178.pdf
- https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/a28a2b6b5c677ff76eee781f2c8e79ce/98363304854.pdf
- http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d720a55be9d---mejisubodulevezulib.pdf
- http://argol-editions.fr/userfiles/file/31805511181.pdf
- http://iccj.jp/images/uploads/fckeditor/file/tufexopiz.pdf
- https://smilepaper.tw/archive/upload/files/vasomuwuzakuwunukufos.pdf
- http://acril.ru/ufiles/files/dusizegurukuxozevefirob.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_off0000ebbd.bin44f2f52cfccbdc66a58cfe65020ad07082dda21f236fa4393d4f861c8411271e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBBD | 10816 bytes |
font_01_sfnt_off000104e5.bin63344c656aa6d9797ee55a280b28ec41f31f12b41a9e2a719ccc3cb05cf7d869 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104E5 | 16648 bytes |
font_02_sfnt_off00013073.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13073 | 16792 bytes |
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