MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The file's structure and the presence of external links indicate it's likely used as a lure, possibly for phishing or to download further malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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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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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://crewmak.ru/uplcv?utm_term=aptitude+multiple+choice+questions+and+answers+pdf
- http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160afa3839bfa2---tojologotavaxevuviver.pdf
- http://leebyunghun.kr/new/upload/board/files/mewimesiwibozubefi.pdf
- http://younewstoday.com/task/userimages/file/viwonufuwubemikedun.pdf
- https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/8cf11b39ce2a8f9030819ee10879a423/58066949192.pdf
- http://allseasonsart.com/uploads/fck_uploads/file/duwudinupukewilebepeden.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9e9221e13d---fekefarav.pdf
- http://blpest.com/UserFiles/file/68552849619.pdf
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/rqnmv8fp97aptk3ccq7l8epmb2/95298610060.pdf
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086bfd3f17b6---jukijorimoxitifelafopafek.pdf
- https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/59c1c288f79efa9d7a19ef806a816811/kekudabobutew.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160acdc9b48e32---22677281861.pdf
- https://bestcoloringpages.com/userfiles/file/xijebiketazu.pdf
- https://jjmassociates.com/wp-content/plugins/super-forms/uploads/php/files/8e75197be19043eaf8c8e1cd9f74442d/modoferomodajazibi.pdf
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/1fec81f98c2513853e29620dca8b4f15/46906905129.pdf
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2dd2ec16e5---gurixuvev.pdf
- http://auksozvynas.lt/userfiles/file/11741715132.pdf
- http://orderleesushi.com/uploads/files/60862739016.pdf
- https://maxflowfans.com/userfiles/file/10622051244.pdf
- http://www.findvoters.com/userfiles/file/zowimolim.pdf
- http://orderbestwings.com/uploads/files/11278552805.pdf
- https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/0b0e05e961caafaa0e779eadaf18cb0d/89594453118.pdf
- http://mooneyes.pl/userfiles/file/bumaxovozomafominaniki.pdf
- https://agrimal.pl/userfiles/file/83387390999.pdf
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a097b8e6f18---10318229346.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_off0000e794.bin58212d90324dc843f52725df3a2878c2609169555e7f25b558b315184fde9a2d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE794 | 17584 bytes |
font_01_sfnt_off00011612.bin0146e15907b6d4ccd7c5fe9dea9bcfae0ae8c2ddbbc80835ebe7f5e0ce58b7b9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11612 | 11196 bytes |
font_02_sfnt_off00012ff5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FF5 | 16792 bytes |
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