MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains a link farm pointing to multiple compromised websites, suggesting an attempt to distribute further malicious content or phish users. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a tactic of using disposable hosting and compromised CMS uploads for distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9906
Heuristics 6
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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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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 http://clingac.com/d/files/94943674219.pdf In PDF document text
- http://hart-metale.pl/gimnazjum/userfiles/file/suzerumeladojexagimozilon.pdfIn PDF document text
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba918f69688---befupisepaduwizigovitiwal.pdfIn PDF document text
- https://agatanorek.com/files/file/23413401906.pdfIn PDF document text
- https://triptoboloyfoundation.org/editorsfiles/files/rozijisazajatajipo.pdfIn PDF document text
- http://veivel.com/userfiles/file/xugofoforudomuxuxag.pdfIn PDF document text
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160b1c7332f7f7---56047584985.pdfIn PDF document text
- http://sistersaviopublicschool.com/userfiles/file/85365608167.pdfIn PDF document text
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/08407f524cf1ab99f3eadf07f8ce0f8b/xuguwikabibeb.pdfIn PDF document text
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160bc66fda970a---18951211997.pdfIn PDF document text
- http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16083b3303416b---39815456766.pdfIn PDF document text
- http://lahma.pl/_u/userfiles/file/5366340093.pdfIn PDF document text
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077f529dd8dd---57837986524.pdfIn PDF document text
- http://uzks.hr/upload/datoteke/83085455799.pdfIn PDF document text
- https://ijpdua.com/contents/files/fepozefoji.pdfIn PDF document text
- http://ebd.su/UFD/7623/files/ninimuru.pdfIn PDF document text
- https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/febc0oq0e3dk19n4va8d7jt7ln/dituditusudefiwumuwita.pdfIn PDF document text
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc00d002e9---38768312787.pdfIn PDF document text
- http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160b80da8c20a9---27857041809.pdfIn PDF document text
- http://kutscher-customs.de/gfx/userfiles/files/joxizama.pdfIn PDF document text
- http://benedictinoselrosal.org/ckfinder/userfiles/files/55934165780.pdfIn PDF document text
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/007b6f358e876f5d82af9fab96252098/ruvijakeravorelekexolob.pdfIn PDF document text
- http://hamdard.com/hamdard/app/webroot/img/ckfinder/userfiles/files/xalawogenaxunirevaravojuw.pdfIn PDF document text
- http://anhuizhkj.com/upload_fck/file/2021-5-8/20210508180652752364.pdfIn PDF document text
- http://hrt-foto.hu/_user/file/5872687406.pdfIn PDF document text
- http://robertfeinberglaw.com/images/edit_images/file/27392606191.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=application+for+employment+example+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fec3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEC3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000116d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116D5 | 18612 bytes |
SHA-256: 592622c8d262e69e767b01c0ff8baba571a5bec34ad086cd163b3775aebede3d |
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font_02_sfnt_off000146dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x146DD | 10812 bytes |
SHA-256: 6b6e792445ff62e8724179ddecd478e22637b8c19bcf994b0e4eaea00506dc52 |
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