MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous URLs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of multiple external URIs and link farm heuristics indicates an attempt to lure users to external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://webornate.com/viking1/uploads/files/gukewobofimutolejiwa.pdf
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3d439115d---wakipoguw.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075978adff20---sofukomusisep.pdf
- https://sonarmusic.hu/up_image/file/sagusowed.pdf
- http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aaf87320382---42615881831.pdf
- https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a87780a8f88---15398547416.pdf
- https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/b4e2480b8ee08fbbd56def0729753e1c/wujovimomorugefoja.pdf
- https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/g4gcpdfs6vs1n6fnrrqacg58f1/63433661620.pdf
- https://jhservice.net/imagenes/galeria/files/87056779966.pdf
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d4b4b948922---gevevetebuzipavazokipuz.pdf
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160f19fe110de6---betenenemepa.pdf
- http://asianmosaicnyc.com/userfiles/file/wunitulixis.pdf
- http://mosjob.ru/images/file/94895539827.pdf
- https://immo-cjeanpaul.lu/userfiles/files/88400396789.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16092d099dc07d---6281313150.pdf
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cf471051d7---lugisafezagisitok.pdf
- http://floridadressyourhome.com/uploaded_files/userfiles/files/zoxezavor.pdf
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a3966918c42---pikuwokudokenuditemajaga.pdf
- http://opakowania-loga.pl/zdjecia/fotki/file/tizanotibumiwudorexo.pdf
- http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608d4fe762e00---xadaz.pdf
- https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/d057fee057d408ebf434cc7ad1a00de9/80364708645.pdf
- http://niezapominajkowo.eu/userfiles/file/19455577869.pdf
- https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/ac6678d06641001d7cb3e41f44b356f3/galisomubatafuzepunigide.pdf
- https://www.sacict.or.th/ckfinder/userfiles/files/dikutadaberibamuze.pdf
- http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/11863280870.pdf
- http://tai-group.com/upload/files/29487918494.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=civil+rights+act+of+1866+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_off0000f816.bin333fd4267e3403baa846604cf65cf21e0c5bf5ff9743d03c26033095f902c802 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF816 | 17440 bytes |
font_01_sfnt_off00012575.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12575 | 16792 bytes |
font_02_sfnt_off00013d8c.bin2948b6fafd0396f0e8d7196492469bcc8c3669708b962e7672125a9a28ffdcdc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D8C | 11188 bytes |
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