MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm or phishing lure. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://irlanc.ru/uplcv?utm_term=sopa+de+letras+de+quimica+secundaria+para+imprimir PDF link annotation
- http://www.colormotion.cz/UserFiles/file/kigelatex.pdfIn PDF document text
- http://mt-filtration.com/uploaded/file/211781351860bc3a8bae94e.pdfIn PDF document text
- https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/160fe4ec482ec2---gakewiravuga.pdfIn PDF document text
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160af82c43dbc6---78573093322.pdfIn PDF document text
- https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/541758af9b5eac7f0cb47561119fa3c8/kanitaseparit.pdfIn PDF document text
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/4d8a8ef1548b4c5433e6632e8a1364e4/jinegafaf.pdfIn PDF document text
- http://angarakshaksecurity.com/userfiles/file/notalidagano.pdfIn PDF document text
- http://playitdirect.ca/ckfinder/uploadfiles/files/fufulinawajufubalenavus.pdfIn PDF document text
- https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/4a63421d3fb1c2d278159808f6d12b09/9887504284.pdfIn PDF document text
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609b3c6411d0a---kuridibifokexurujupajis.pdfIn PDF document text
- http://sochi-vitrazhi.ru/ckfinder/userfiles/files/23349956653.pdfIn PDF document text
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/8v39u80fq5pmnsul26bjgaao24/farusenalase.pdfIn PDF document text
- https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/db7d792796610ecb5ac99353ce68a305/85793028752.pdfIn PDF document text
- https://baptistfriends.org/media/pevixenofazabifarid.pdfIn PDF document text
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/c4db716ba436e7ac6c95c45feda0685a/85228201452.pdfIn PDF document text
- https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/b258245fc3db5e56316045ac2d819ab7/vitorasufajogatazafapega.pdfIn PDF document text
- http://nprofit.hk/userfiles/10454939187.pdfIn PDF document text
- http://ge-mak.com/files/jeratagesizulesupuratexem.pdfIn PDF document text
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/cd9b03034bfafb4134ec3116bfebc262/21435772716.pdfIn PDF document text
- http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/77226932339.pdfIn PDF document text
- https://proektasis.gr/admin/spaw2/uploads/files/94419850026.pdfIn PDF document text
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d6f3258421---71456847567.pdfIn PDF document text
- http://phuquytravel.com/nguyenvanlinh/files/70350522335.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_off0000e721.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE721 | 10996 bytes |
SHA-256: 0986a23cb6c87c5307250779e3e371675239a8d0e7cd5ad5f37089d292e7256e |
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font_01_sfnt_off00010066.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10066 | 19612 bytes |
SHA-256: e149588bcd4bf5c1b3778e733b434b02c4bb9f90c6a445fbb3afbcd53b73acaf |
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font_02_sfnt_off000132bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132BC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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