MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to phish or redirect users. While no scripts were explicitly extracted, the nature of the embedded URLs and the detection names point towards a phishing or trojan distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/47f1258461b53d95f13fc5f912e0545d/332546745.pdf
- http://aucoindeshalles.com/menu/file/jejemawotega.pdf
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c35d442f810---29471840216.pdf
- http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/8a6b0535991b921ffd8e7b259f690401/miwuvusem.pdf
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/6845149ce79a701229ff08e3c0180ab9/nefixefivunetoba.pdf
- https://andrejc.si/files/file/mawuduxotab.pdf
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c8cd797db81---89713134593.pdf
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c7c161bbf3b---gijakikokamuvebi.pdf
- http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afecb2a0e90---zomonuzap.pdf
- https://www.ergunaygoren.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080ad2aa6367---65642209773.pdf
- https://nadamasristorante.it/file/75558395595.pdf
- http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a517538be16---lutezulijasegot.pdf
- https://celebicatering.com/upload/ckfinder/files/11245758097.pdf
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/3f7c5fb832b1a9e123901d58fda73abd/wapulibatajeforewikadeweb.pdf
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b28f5c4d6a5---84996020015.pdf
- https://praward.tw/wp-content/plugins/super-forms/uploads/php/files/e6f5c7adc5cb9f10ce8957282dae0da5/63424111766.pdf
- https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/j186hbmpjkdnpv5sepo8iqjrjd/42923582866.pdf
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607858723e790---46751176909.pdf
- https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/p9ca66a9a8rsubdemie70vgv19/tibifagi.pdf
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/deba80372c166766f7f3f527e6eaf602/raniwuteguv.pdf
- http://tvkinter.com/file_media/file_image/file/xijolaserediniv.pdf
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608ddb0904d9f---95140174257.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d0886188bb7---82149938778.pdf
- http://ozanatalan.com/iboard/includes/userfiles/files/57712456094.pdf
- https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbccbecc86---8137544923.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=my+heart+hurts+after+working+out
- 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_off0001105d.bin8a45ab9ec26d43b7ad2fdcd193981987b8299a7204cfd706a5b5f3c5cafb3fb8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1105D | 17488 bytes |
font_01_sfnt_off00013d88.bin765cc457ac06483806a59e11be912b60702e702bf7104a02d385e3eb084e0813 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D88 | 10832 bytes |
font_02_sfnt_off000156a3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x156A3 | 16792 bytes |
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