MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is unreadable due to the file type and generation method, but the heuristics strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9937
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 http://vietkinggroup.com/uploads/userfiles/file/fusejubikakadukumajapezod.pdf
- http://aire-limpio.com/img/editor/file/bokitatokotekikigifukidu.pdf
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160807b443ff0f---15363191817.pdf
- https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/73d7948a1f1a89491a897d1300ead339/kesofufamosemiz.pdf
- http://baodieptailor.com/uploads/2021-07-13/images/files/kotamemuniwuru.pdf
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd8bb5220ed---88215740355.pdf
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/160abd4221549e---76671725811.pdf
- http://sacmacbook.net/userfiles/file/remorerozupuzut.pdf
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b1e9490c881---luwota.pdf
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/sakmbntosqrm4ec5bind7d7brb/88279097517.pdf
- http://dailyliving.nl/ckfinder/userfiles/files/gozanumesakuniv.pdf
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d0ad828086c---gakirunikevare.pdf
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/41fbf1399c6ff2e170ae66fb440b5e3a/dekalabenapitibogotoj.pdf
- http://jfkanacon.org/data/userfiles/files/gubimixuvomoredirukok.pdf
- https://rubenoferro.com/userfiles/file/71699319670.pdf
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/u95khmie36258hvui26boc6q6a/jokoronubajat.pdf
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/bd72b4f4ba132702b187a0882cdc1eee/42289266498.pdf
- http://wernitznigg.at/files/zavakeve.pdf
- http://akicgiyim.com/userfiles/file/velarar.pdf
- http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b41b9cca7a5---siwomitazixuzebilutot.pdf
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/c16763313358873dc41c9f6c89e93495/90145734509.pdf
- http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160aaa452bb9b4---65796029039.pdf
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/9655d5816737bc2f8d6ecb03ee2bc7f2/zozajupokemiwejaved.pdf
- https://vvpta-irvine.org/userfiles/file/zoxibitaf.pdf
- http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b62b95053cb---4055400269.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=pray+for+leaders
- 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_off0001027e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1027E | 16792 bytes |
font_01_sfnt_off00011a90.bin04e3f9ac839f08f01a6a1473695b077784fc395bc610487767b442705717c6d9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A90 | 17052 bytes |
font_02_sfnt_off000146cb.bina1be47e060053962b7cb5ffa0f6747d178610293ba6ea4c5450e7a2dac4f283a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x146CB | 10168 bytes |
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