MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file identified as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many of which point to compromised WordPress sites, suggesting a phishing or malware distribution scheme. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of link farms on compromised infrastructure is a strong indicator of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/f45bbb89a08444d0c5dfb7f38813c624/75988023356.pdf
- http://sushi-belovo.ru/files/besosusunudabapenexuj.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cb6e282560---pinagazewotu.pdf
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/004309b70cae555ab356d07265b7484d/78910669622.pdf
- http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202105061758587630.pdf
- http://armanetti.com/images/5383043903.pdf
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609428a6aab92---gagaxenatej.pdf
- https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/jobtmq38u4q62vqdvdiqk801o6/11705286130.pdf
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/160987875171d8---34439029794.pdf
- https://bem-sa.com/img/file/razejesamajivarivosaje.pdf
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160917c3b9350c---rilodewemeropodusomolo.pdf
- http://naasschoolofmotoring.ie/fckeditor/userfiles/file/2588734432.pdf
- http://lumieretvie.com/userfiles/file/24190060769.pdf
- https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/1606f12f49e279---zopolekegigeke.pdf
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/nkgdvkdlvfeq48u0t2pmpr5r55/81366287307.pdf
- http://allycatering.com/userfiles/xaregonakaf.pdf
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb81fb7b5e---zukukumewetukosewedasi.pdf
- https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/fvd6a8ntrkn3j8l5i5ll99qv43/zikijo.pdf
- https://eseninternational.com/uploads/files/medevolejarokoso.pdf
- http://scamps.biz/userfiles/file/xuxesilefata.pdf
- http://praconsulgroup.ru/pict/file/39647968177.pdf
- http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d014527608---56781087486.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/79ae531ef5f369a9bbd3bb0a63381e7b/rodibuwufodelenafajuleni.pdf
- http://midiabyz.com/wp-content/plugins/super-forms/uploads/php/files/137b8f0154665a2dcdedc9d88746606f/88388702731.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607beb3c099c9---mubefotipuwoborivejeru.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=as+your+wish
- 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_off0000ee18.bin29afe151da3bb11fabcae3f7cbf5248c0124614d2a1d57578403c974ba75b9f8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE18 | 17496 bytes |
font_01_sfnt_off00011b9b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B9B | 16792 bytes |
font_02_sfnt_off000133b1.bin82f55365085a8d6f072d5776e41b000dff12c69b90b531fb4601a1ef9906bf65 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133B1 | 9944 bytes |
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