MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as a phishing trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains numerous links, many pointing to compromised WordPress sites, which likely serve as a link farm to obscure the ultimate destination. One URL, 'https://smidgel.ru/uplcv?utm_term=download+battle+cats+mod', suggests a lure for game-related downloads, potentially leading to malware. No scripts were extracted, but the PDF structure and URL patterns are indicative of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://smidgel.ru/uplcv?utm_term=download+battle+cats+mod PDF link annotation
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16144d5f97d9fa---rodadopabofen.pdfIn PDF document text
- https://sardavetri.it/userfiles/file/jefixuxowopogas.pdfIn PDF document text
- http://lica-mpt.it/userfiles/files/ramevaradalowisojuloda.pdfIn PDF document text
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/161345ea53ac66---23418806847.pdfIn PDF document text
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/16135655c5e8d6---5093929000.pdfIn PDF document text
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1612feef8a2e5d---fusojerazosenepixa.pdfIn PDF document text
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/161438509d82c9---juvowaleweb.pdfIn PDF document text
- http://komodovo.ru/upload_picture/49926201985.pdfIn PDF document text
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/b33f2cf7f99c806629359d5cbd448877/nelinawibef.pdfIn PDF document text
- http://www.slappedtogether.com/editoruploadfiles/file/8118555617.pdfIn PDF document text
- https://www.vita-organic.eu/admin/ckfinder/userfiles/files/20688639077.pdfIn PDF document text
- http://synthecinter.com/userfiles/files/gaxipifomuvew.pdfIn PDF document text
- http://seteo-dechets.com/images/file/sawuwi.pdfIn PDF document text
- http://immobilieninvestors.eu/userfiles/file/bopezevaja.pdfIn PDF document text
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613109afd701c---72476870733.pdfIn PDF document text
- https://hmradiatoriai.lt/images/files/97625535348.pdfIn PDF document text
- https://betsin.org/userfiles/files/92496420576.pdfIn PDF document text
- http://ssss-sangam.com/userfiles/file/bemomaruzegirutaravok.pdfIn PDF document text
- https://gamedunyasi.com/calisma2/files/uploads/witosotanat.pdfIn PDF document text
- http://email-database.info/userfiles/file/19696844645.pdfIn PDF document text
- https://heks-tech.com/app/webroot/userfiles/files/73591118869.pdfIn PDF document text
- https://vsetinrally.cz/userfiles/file/91365790624.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_off0000cac8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAC8 | 10564 bytes |
SHA-256: 71b35fd1cdddb88cac3f49c6fa301d6468006ad1efff3f3d9088171a6c6fb8a2 |
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font_01_sfnt_off0000e2ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2EF | 17352 bytes |
SHA-256: cd32c0b2ef6d10d45e94fe9715059c55144033c3672fdcefcc85d7ac43695f93 |
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font_02_sfnt_off00011012.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11012 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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