MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, specifically as a phishing or trojan delivery mechanism. The document contains a link farm pointing to compromised WordPress upload storage and disposable hosting, suggesting an attempt to host malicious content. The SE_CALLBACK_LURE heuristic indicates the document likely prompts the user to call a phone number, consistent with callback phishing or tech-support scams.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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 https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/b00b9bacf2886ad743bc6b9c8449f18b/punedalirikop.pdf
- http://limuzine.md/userfiles/file/sifomus.pdf
- https://styliststudios.com/imagesTE/file/72906083333.pdf
- http://zdrowejaja.com/Upload/file/duxekuko.pdf
- https://juhaszautovill.hu/userfiles/file/gekomufifeni.pdf
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609febd83ffb8---51057777345.pdf
- https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/0b939756fcbbb3d7b7cbc67b6ea2248d/13969999955.pdf
- http://dichvugiayphep.net/hinhanh_fckeditor/file/nazewufumeluvoromatojoke.pdf
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160baea722e8a2---wowajopebojez.pdf
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607b60d13bd42---15589711021.pdf
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607033e13e5fb---kebemebisujexuzowezim.pdf
- http://africareview.in/userfiles/file/85065399988.pdf
- http://www.nowsingapore.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/1609f1b59710c9---29377149329.pdf
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1609839f511428---pebuzuza.pdf
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/4465ad3de4b3430bf1683af71fd8c8a6/fugofasixulogig.pdf
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609db590d17e2---nutagedesi.pdf
- http://esipro.lu/userfiles/file/nexuwigegesajasipeg.pdf
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609b47a92b9a4---zekezenebewujib.pdf
- http://iseveranscopy.com/upload/editor/file/malesewanodiduwemijuma.pdf
- http://angelcabrera.com/FCKfiles/file/faboduvefaw.pdf
- https://bisnismedsos.com/userfiles/file/wajinotaxavumejogosez.pdf
- https://erdemlerkoleji.com/resimler/files/mudelomokizalebulawafewef.pdf
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5047bdc098---sulagitasalanifesub.pdf
- http://thecreditcrisis.net/clients/73966/File/53722228677.pdf
- https://bliznacite.com/files/78304180718.pdf
- http://studiotecnicomartani.eu/userfiles/files/pibimowawejuxob.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=do+you+have+to+go+to+uni+to+be+an+accountant
- 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_off0000e22d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE22D | 16792 bytes |
font_01_sfnt_off0000fa3f.bin6cdcaf01e9921ba8fbc202630439cfe3a010fee436db5b5d556a745a932fbd2e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA3F | 17412 bytes |
font_02_sfnt_off00012791.bin0f65b96d5e1b723885385ae75026caeea2afca9d1c84343fe8f17b060e6d3926 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12791 | 10616 bytes |
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