MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
This PDF file was detected as malicious by ClamAV and a machine learning classifier. It impersonates Microsoft and contains a link farm pointing to compromised WordPress upload storage, aiming to trick users into providing credentials. The primary lure is a link to 'smidgel.ru', which is likely a credential harvesting page.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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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Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://smidgel.ru/uplcv?utm_term=how+big+is+forza+horizon+4+on+pc.
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://smidgel.ru/uplcv?utm_term=how+big+is+forza+horizon+4+on+pc PDF link annotation
- https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607110cbea0cd---vekum.pdfIn PDF document text
- https://100tmt.com/uploadimage/files/20210624023537.pdfIn PDF document text
- https://maribon.net/app/webroot/files/userfiles/files/94730275999.pdfIn PDF document text
- http://angelescare.com/userfiles/file/kajutiroxilok.pdfIn PDF document text
- http://evpltravel.com/xv_image/file/49000592695.pdfIn PDF document text
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1606c98a687216---28184106453.pdfIn PDF document text
- https://jxloanchien.com/style/postimage/file/sowevenitojiv.pdfIn PDF document text
- http://bhavalaya.org/ckfinder/userfiles/files/jadapelazawiximana.pdfIn PDF document text
- http://ttc-investco.com/img/files/puvifejapusukisulipak.pdfIn PDF document text
- http://beautybybelief.com/admin/images/file/20743235045.pdfIn PDF document text
- http://aksaaydinlatma.com/img/editor/image/file/surowovimedodilikuko.pdfIn PDF document text
- http://hoggard1975.com/clients/a/a4/a43fc1111b7ad4318f8b553feb79a890/File/30822798022.pdfIn PDF document text
- https://www.sixteengrams.com/wp-content/plugins/super-forms/uploads/php/files/qr8tucduqh4npvn4u0bqj4atom/rewekavizatemitokokif.pdfIn PDF document text
- http://ekolojikweb.net/upld/userfiles/file/feridovulerenogovavixuzo.pdfIn PDF document text
- http://abnicum.com/files/file/63858407880.pdfIn PDF document text
- http://macap.nl/app/webroot/files/userfiles/files/44890834969.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/a58d7d1982c233cc50dad472b1f6052a/14407885612.pdfIn PDF document text
- http://eshop-kocicinadeje.cz/files/file/latusivovugagovozem.pdfIn PDF document text
- https://xn--p3t29jo1ed4o4xw.tw/upload/files/kogidikajefovuwekuzuwoj.pdfIn PDF document text
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/9dc248b95d778693dc5ca629bd4f400b/75674275651.pdfIn PDF document text
- https://sahyadrisevasanstha.in/userfiles/file/19502873689.pdfIn PDF document text
- https://topplene.com/upload/ckfinder_temp/files/20210619192902.pdfIn PDF document text
- http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a724f918946---17469239676.pdfIn PDF document text
- 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_off000297c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x297C8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0002afdf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2AFDF | 10840 bytes |
SHA-256: 08811f2ae8f20c868d312150f680d989e48f59c423d8e39c2f3c813c225728a0 |
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font_02_sfnt_off0002c8b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2C8B3 | 17988 bytes |
SHA-256: e67d067c6f3342a6fcf7a0504e4951c7f50bd68f17ef152d324e8197201024e3 |
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