MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The presence of urgency language and a high ML classifier score further supports a malicious intent, likely phishing or malware delivery. ClamAV also detected this file as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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=disciplinary+action+forms+pdf
- http://quaint-house.com/images/blog//file/22876507743.pdf
- https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/448cd2429c0bad904796478080d29c5d/vozabi.pdf
- http://beveragesgs.com/userfiles/file/bavatumowukikezasurat.pdf
- https://bodymason.com/user_uploads/files/77456123009.pdf
- http://z500.si/files/zifesitukixobojad.pdf
- https://fsreloading.com/userfiles/files/60702470903.pdf
- http://k9careclinic.in/ckeditor/ckfinder/userfiles/files/jorakatebul.pdf
- https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/84ecaa500445ac2cc50ba4a1e1c395fc/dekuzetizoniduluw.pdf
- http://quangphong.vn/uploads/image/files/50439958381.pdf
- https://nepalonetours.com/userfiles/files/83934491056.pdf
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/36c824d127f0d6ca19dd10d9f4eef792/polosuwisejanivemo.pdf
- http://drxzhang.com/userfiles/file/wikujasokagu.pdf
- http://grandchainfamilyfoundation.com/clients/85333/File/tejan.pdf
- http://kaymccarthy.com/immagini/file/97507521507.pdf
- https://nusbetaja2.com/contents//files/84069547409.pdf
- http://ch-bovi.com/upload/files/2081014955.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba5ae2a610d---powofoloxon.pdf
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7d0049f96e---mibakanikurevakezasaxapu.pdf
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2914401ea5---72277104265.pdf
- https://kingcarmotorista.net/uploads/files/13479436415.pdf
- https://chptravel.ir/data/file/jaribavazuduzano.pdf
- http://canphantich.net/Images_upload/files/notadoxajod.pdf
- https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a11b5aeeabe---xeziwigitatimu.pdf
- https://bibonatura.com/ckfinder/userfiles/files/48399397214.pdf
- https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/dvdiri87491cbi0iei1v358j00/gimamotoluko.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_off0000ed00.bin7058773f5e887870d0cf0a698db35b7cf9fa3a662213fdad3a288b0560d66685 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED00 | 17176 bytes |
font_01_sfnt_off0001187d.bine8d3d2a195180577168ab27d7f79834fd3a58c6cccb462c3e4eebf6ed1b7e31a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1187D | 10764 bytes |
font_02_sfnt_off00013147.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13147 | 16792 bytes |
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