MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The sample is a PDF document that exhibits characteristics of a phishing lure, specifically by instructing the user to interact with a remote support tool. The presence of multiple URLs pointing to compromised CMS upload directories and the 'password-protected archive handoff' heuristic strongly suggest this document is a precursor to a malware delivery. While no scripts were directly extracted, the PDF structure and associated URLs indicate a malicious intent to trick the user into downloading and decrypting a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9847
Heuristics 8
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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://bkht.vn/userfiles/file/82199884161.pdf In PDF document text
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/4981896897d1b3f3a742041731b9468c/bowewogodo.pdfIn PDF document text
- https://palcev.ru/userfiles/file/wizever.pdfIn PDF document text
- https://www.singaporemedicalclinic.com/ckfinder/userfiles/files/rekab.pdfIn PDF document text
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/8c283938fc7e2cfef5a96a55b9122999/42076405202.pdfIn PDF document text
- http://talleresjpg.es/img/file/6573420346.pdfIn PDF document text
- https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/2eo6ugft6a5kae4tgvj4e66i75/10724945468.pdfIn PDF document text
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088409882d60---tekexunubexu.pdfIn PDF document text
- https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/d17dlt2os4336dg70uhji7a5t5/zowoxoze.pdfIn PDF document text
- http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad89061e573---51409156668.pdfIn PDF document text
- http://dienmattroigiatot.com/uploads/files/sekegekamiba.pdfIn PDF document text
- https://eurouniversal.eu/ckfinder/userfiles/files/mowakolawem.pdfIn PDF document text
- http://wabasnb.com/files/fckeditor/file/8739576960ee1b584b937.pdfIn PDF document text
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/kktr4t8aql2jvhf35a6r70tdot/gidetevojulikerije.pdfIn PDF document text
- https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/53134df487d5c50ae0c74dfa0486637f/90276330446.pdfIn PDF document text
- https://atraba-holding.com/userfiles/file/98994139974.pdfIn PDF document text
- https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/4c8bbc0cd07e3ccff01ef64364e385ef/50068494469.pdfIn PDF document text
- http://slp61.com/clients/e/e2/e296dcecfd7d10ffef0cc83fef253c72/File/70408954341.pdfIn PDF document text
- http://xn--80aawifdlfr.xn--p1ai/ckfinder/userfiles/files/wumabiravipawa.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/e233lt0u6saiqlo10ksbmkb3ke/6880746579.pdfIn PDF document text
- https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/dde3fe6218fe9c767115813a54ac98e9/lukavutaduz.pdfIn PDF document text
- http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/207332393460daa2ae958f3.pdfIn PDF document text
- http://fizjoactiv.eu/Upload/file/30600109071.pdfIn PDF document text
- https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/7b3329420469469fff7c8dc8312dffb8/zafezemi.pdfIn PDF document text
- https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/975a8514cc110f465f0eec2c7b089174/doredujonetemofiva.pdfIn PDF document text
- https://die-elke.de/cms/elke_page_files/file/lufewowabikusimexam.pdfIn PDF document text
- http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a09b2f8b7f3---kuzerogabobepofukekona.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=wat+remover+windows+7+32+bitPDF 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_off000218b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x218B8 | 10988 bytes |
SHA-256: 5b19fbd2c7bd3e8ffec3f8ef50874753bc0349a2536085d04358cf1cc108e132 |
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font_01_sfnt_off0002326d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2326D | 18224 bytes |
SHA-256: 9c09697810f5fc3e35aa0b5d6a3a40c39a5261941d9f27a4ea9c6928262e3d1b |
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font_02_sfnt_off0002625e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2625E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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