MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting a link farm designed for phishing or malware distribution. The presence of 'utm_term' parameters in some URLs further supports a campaign-driven phishing or spamming operation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://chcial.ru/uplcv?utm_term=mic+too+low+windows+10 PDF link annotation
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16094c852ceff8---60384784696.pdfIn PDF document text
- http://novichiha.ru/pic/file/84769502917.pdfIn PDF document text
- https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/78taip3gc6ctvacu6uqjqqose7/witedokanaserogome.pdfIn PDF document text
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160866da919ab9---19105669377.pdfIn PDF document text
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/auskkgrivan7kp2fj72gte11r6/toxoliposezuz.pdfIn PDF document text
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/41cc9416e49914caafa19b1a85505c1a/33890758862.pdfIn PDF document text
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/4355570c2e88864eb2efab647226d442/72703096496.pdfIn PDF document text
- http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/20e3e135815ca4598e5337418923589f/welisamojemofulibabunexat.pdfIn PDF document text
- https://medtek.vn/storage/file/zipagoporivusofat.pdfIn PDF document text
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089b6824d6dc---73555211259.pdfIn PDF document text
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/3e8eetg4q33tbieol756e18l3k/jopusadukukunit.pdfIn PDF document text
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a24fd5c4f9e---naxezoboxidud.pdfIn PDF document text
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16093c0e946c14---71236652776.pdfIn PDF document text
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/qft856dm7srmsjria9o4bnl6d2/ritalirosuz.pdfIn PDF document text
- http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160ae0cdb99926---muxowasazobefejox.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f72d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF72D | 4916 bytes |
SHA-256: b456f674648a7d65e58e8423acfe39749e2345eb65ddbaaed8a9c3614b823768 |
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font_01_sfnt_off00010823.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10823 | 12820 bytes |
SHA-256: 8999b692a2d8cbadbf9eda54bf69d6ae7febda2fd5dfba0f72b071ea2ee78320 |
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