MALICIOUS
156
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. Heuristics identified it as a link farm, with many URLs pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or SEO manipulation scheme. The embedded URLs and the nature of the heuristics strongly indicate the document's purpose is to redirect users to potentially harmful external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/1ade8d6fe48027bef7dc3c9f711a6e5c/32995967283.pdf
- http://andrelandberg.com/userfiles/file/xixidawirapa.pdf
- http://vakaruinzinerija.lt/userfiles/file/97978555535.pdf
- http://erulingua.hu/uploads/content_files/files/16556552840.pdf
- https://otoform.com/upload/ckfinder/files/33313819104.pdf
- http://modero.vn/upload/files/pawuwa.pdf
- https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161466e932bda8---23113257670.pdf
- http://www.optimizecost.com/admin/ficheros_fckedit_subidos/23073120530.pdf
- http://ave-france.com/pics/files/lopumakinagafijukapisug.pdf
- https://yourownadviser.com/ckfinder/userfiles/files/56284705975.pdf
- https://vnycc.com/userfiles/file/famaxejejir.pdf
- https://nsstore.mx/ckeditor/ckfinder/archivossubidos/files/pimifalavolofiz.pdf
- https://bouveau-consulting.com/userfiles/file/86655006620.pdf
- http://tlca.com/Content/uploads/files/xosudig.pdf
- http://anthonyvienna.com/sites/default/files/file/xotodufaxi.pdf
- http://studiotecnicomaglio.it/userfiles/files/49275231859.pdf
- https://albertoangel.sinecsas.com/ckfinder/userfiles/files/14803817123.pdf
- http://diennuocdanang.com/uploads/image/files/kenonefelofimuzebidigabu.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cf00bd6e66---tubolovogeg.pdf
- http://didopack.com/files/29670417393.pdf
- https://ms1oke.com/contents/files/miviwopeta.pdf
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/16145b32caa3d0---89751375013.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=pokemon+platinum+gba+cheats
- 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_off0000d84c.binff987d46c919ef2ba5b237cce25d73570408aecfa74474e4e9f8b3a637b935f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD84C | 11052 bytes |
font_01_sfnt_off0000f1a2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1A2 | 16792 bytes |
font_02_sfnt_off000109b4.bin3c1d3eaf739e08dbfbf65d6fe46d20bf7d85244c475387ba1611b3712991e52a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109B4 | 18972 bytes |
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