MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicate a strong intent to drive traffic to external, potentially harmful, resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://krisoc.ru/uplcv?utm_term=download+gratis+tema+iphone+untuk+android PDF link annotation
- https://renault-service.com/userfiles/21134815154.pdfIn PDF document text
- http://f1-rennsimulatoren.de/userfiles/file/95645144008.pdfIn PDF document text
- http://sameiroeventos.pt/ficheiros/sawojakubogenujuw.pdfIn PDF document text
- http://21cedu.com/pds/userfiles/files/32001988424.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/161374df73f3d8---28421096320.pdfIn PDF document text
- http://zbraneklapka.cz/ckfinder/userfiles/files/23875861616.pdfIn PDF document text
- http://bobmeetin.com/media/galleries/files/33557956748.pdfIn PDF document text
- http://apisicul.com/userfiles/files/96335175819.pdfIn PDF document text
- https://hurghadalife.net/userfiles/files/vipusenu.pdfIn PDF document text
- http://sumtinathholidays.com/admin/uploadfiles/file/36175395750.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613f7ded8cd9f---71481659084.pdfIn PDF document text
- https://pergamine.com/ckfinder/userfiles/files/ruvonixokobupikanobo.pdfIn PDF document text
- http://kovovyroba-nosniky.cz/UserFiles/File/25964622709.pdfIn PDF document text
- http://sten.kr/club/data/userfiles/file/20210904145037.pdfIn PDF document text
- https://asiapharma.la/files/files/fajozonenivenavejatikunu.pdfIn PDF document text
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614086b2dcca8---62821083237.pdfIn PDF document text
- https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/acb47634ddb5caafc90da7c27c9889ec/21638450935.pdfIn PDF document text
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fe8b35cfa2---funexugubekigemafogikaxaz.pdfIn PDF document text
- http://duepassidalcentro.it/userfiles/files/durotideso.pdfIn PDF document text
- http://liyangah.com/Upload/file/zasejogagulikob.pdfIn PDF document text
- http://www.fonfe.com/uploads/files/67844138084.pdfIn PDF document text
- http://madmojo.com/fckupload/file/pamevutibemixiruber.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_off0000bece.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBECE | 15864 bytes |
SHA-256: 37f39829f8ba4e47d0fae8ab62099d571aa488957425f5d20ee908c551501ae9 |
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font_01_sfnt_off0000e710.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE710 | 11120 bytes |
SHA-256: 7885d3ad546e50aa6e21a9e8bb82c2112613d965e9ded5a52606c60ef9fbe3ed |
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font_02_sfnt_off000100ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100AD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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