MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 70 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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://thetsaban3watnuea.com/UserFiles/file/38497361.pdf In PDF document text
- https://rintrans.com/files/50335795358.pdfIn PDF document text
- http://www.kroonzuivel.nl/ckfinder/userfiles/files/litanenukirofonare.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16121a697c1e4a---kufedifedeto.pdfIn PDF document text
- https://albizy.com/ckfinder/userfiles/files/4035733279.pdfIn PDF document text
- http://majorpropertygroup.com/userfiles/files/79027061130.pdfIn PDF document text
- http://spbmedax.ru/sites/default/files/uploads/vekopevim.pdfIn PDF document text
- https://bhiringisamsankalimandir.org/userfiles/file/tiwafo.pdfIn PDF document text
- http://fujavietnam.com/images/Download/2114576865.pdfIn PDF document text
- http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/1609d00188ee1e---vilolijem.pdfIn PDF document text
- http://makesomenoise.hu/upload/file/nozegadi.pdfIn PDF document text
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/5303ed462cfe9fd993a83521228ebe9b/farapirelipumivofutekel.pdfIn PDF document text
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16092160eb74e4---punupudexogulofa.pdfIn PDF document text
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/8febadd6c79b35eed3587b4e448df88d/19792663433.pdfIn PDF document text
- https://4of100churchstreet.com/assets/media/files/31623531766.pdfIn PDF document text
- http://banghetretruc.com/media/ftp/file/55847655320.pdfIn PDF document text
- https://irisapp.cn/uploadfiles/fckeditor/20210605/file/16228257177103.pdfIn PDF document text
- http://bestapp4u.com/admin/uploadedfiles/file/27733373007.pdfIn PDF document text
- http://homestationrealty.com/userfiles/files/95178550823.pdfIn PDF document text
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16074d76cd6c30---9096966847.pdfIn PDF document text
- https://manuscripthandler.com/userfiles/file/wuvuloveludixereb.pdfIn PDF document text
- https://aadharshilaschool.org/userfiles/file/suxofigudukixuzigijod.pdfIn PDF document text
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/2121ac1dcc06e37d1710dad6e93edca8/jemibatupizaxobe.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=chemistry+class+12+chapter+aldehydes+ketones+and+carboxylic+acidsPDF link annotation
- http://irodori.kir.jp/files/file/58187663801.pdfIn PDF document text
- 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_off0000b356.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB356 | 13652 bytes |
SHA-256: b1ef0322c97de5530a9c4d690e958f28a0a65e676feaeb573f55e19f78078691 |
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font_01_sfnt_off0000d4d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4D7 | 11428 bytes |
SHA-256: 05b119d09c21a31d90a3571dbd13e2086acbe54cd6a15b2064557e43211de74b |
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font_02_sfnt_off0000ef91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF91 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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