MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm designed to distribute malware. The presence of a 'download' lure further supports this, indicating the document's purpose is to trick users into downloading a malicious payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=section+3+guided+reading+and+review+basic+concepts+of+democracy+worksheet
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/2be1brea4vijcurma8knfrm515/zopemodi.pdf
- http://fullcolorspandoeken.nl/userfiles/file/87930010313.pdf
- https://christembassybarking.org/wp-content/plugins/super-forms/uploads/php/files/296e9495c321d9a0e0a79f4008d9af50/kegotavujumatedotanusowi.pdf
- http://tamlaproject.com/userData/board/file/bamojupovutimepojama.pdf
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d266160cb2---dapugevagow.pdf
- https://alianzatours.com/imagenes/file/bufivot.pdf
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096435f23b31---87398460542.pdf
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f46478c327---8122337007.pdf
- https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/01553702b2624225405d2fe0723556d6/fekivasuzategijebuneguv.pdf
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d0f7f339ae---xosuzefukemugazuniligemop.pdf
- https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608307d24c007---72162578576.pdf
- http://ahcxdq.com/uploads/file/020355282092.pdf
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b350f74a2e2---55095749578.pdf
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/f5f9aecf3d08aab0789b2272d8b770cd/bikugeludolusidozezesuvoj.pdf
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160904a424f5cd---jekakijodokawalitebu.pdf
- http://aylincinarli.com/fckfiles/file/xiwuverekakumupor.pdf
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608acc569fbf6---dalobitamajusazafo.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- 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://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d8df.bin071c177ecc2e1b49cdf03479fca9cd6684f56665b062b6f3f93a7c2c54aae72e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8DF | 6264 bytes |
font_01_sfnt_off0000ee1d.bin2d247dda3bd9650b4c9645bc9eae0bd8f291567aa4d7922012aad66ea5ce804c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE1D | 10584 bytes |
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