MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as a malicious PDF by ClamAV and an ML classifier. It contains embedded JavaScript, which is often used to exploit vulnerabilities or redirect users. The PDF also functions as a link farm, pointing to multiple URLs hosted on compromised WordPress sites and other disposable domains, suggesting an attempt to obscure the final malicious destination. The presence of these elements indicates a likely phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9800
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607dcfe0c8a7b---66907155808.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160900cf4be802---13968267131.pdf
- http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e7879a582---majibagu.pdf
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/d60cmf245u9h88bfmt7fru8jg8/30335299575.pdf
- http://www.euro-fly.eu/userfiles/files/16127591871.pdf
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160991f6d57d64---fuzopubevorewixuweji.pdf
- http://ilkyoukais.com/Images/Media/files/dunal.pdf
- http://dothi.info/images/files/96566018708.pdf
- http://oio.cn/uploadfiles/files/50904602766.pdf
- http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c1f5ff73323---nesixi.pdf
- https://handinhand-daycare.com/ckfinder/userfiles/files/71165806553.pdf
- http://dungcubepgiangtrinh.com/webroot/img/files/75943484793.pdf
- https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098ad6ca2dfa---21952594081.pdf
- http://xn----7sbabaajmdfbk3ddf3azka3b6a2r.xn--p1ai/ckfinder/userfiles/files/86937167861.pdf
- http://www.dramayaramendes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607a7d32dc949---xupewexi.pdf
- http://bjeclinic.com/ckfinder/userfiles/files/narigujusidewuf.pdf
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abab5950f1d---biledojesajapofonaxopen.pdf
- http://yilip.net/userData/board/file/39810110771.pdf
- http://www.adarshvidhyasankul.org/userfilesfile/65268329015.pdf
- http://cukiernia-waltar.pl/qcms/userfiles/file/lowogidasi.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160a6942a121ea---xarewetitofuxuwoni.pdf
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/a4entaior4d9t65hsh3cup5bi2/89963100045.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ca52658a0dd---segusiwadakimunobisepataj.pdf
- https://snqrsl.quebec/upload/editor/file/wumup.pdf
- http://augustaelectricalwork.com/editorData/file/dilifij.pdf
- https://win-win-keiba.site/js/ckfinder/userfiles/files/gubabuvirozizokejow.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=the+day+no+pigs+would+die
- 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_off00011fd3.bin8879a9510caf40ff4abba5cc434fcafaf2c703a2cccad425b49dd08cc76991a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FD3 | 10736 bytes |
font_01_sfnt_off00013841.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13841 | 16792 bytes |
font_02_sfnt_off00015053.bin76e39aacb774ac1ea861a36ca1303651b8990a8457136fbc57399c71bc981df4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15053 | 16984 bytes |
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