MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, with numerous embedded URLs pointing to potentially compromised or disposable hosting sites. The presence of 'utm_term' parameters suggests an attempt to track user engagement with these malicious links, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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=how+to+draw+a+bike PDF link annotation
- http://hzxf.com/images/upload/File/detujatusub.pdfIn PDF document text
- http://fatename.com/uploads/files/202109232307229330.pdfIn PDF document text
- https://fpcofmacon.com/nbloom/fckuploads/file/guguvofikudore.pdfIn PDF document text
- http://cuacuongiare.vn/upload/files/fotojefufatazavelon.pdfIn PDF document text
- http://thuexe7cho.vn/upload/files/ferorujaxejidowebexa.pdfIn PDF document text
- http://elma-itc.ru/!upload/files/21615166644.pdfIn PDF document text
- http://namadagaskare.ru/ckfinder/userfiles/files/vetoxavajat.pdfIn PDF document text
- http://webinaris.eu/ckfinder/userfiles/publics/files/51204662844.pdfIn PDF document text
- http://ambulatorioveterinariocamali.com/userfiles/files/javajab.pdfIn PDF document text
- http://lex.tj/img/file/legutenomofoju.pdfIn PDF document text
- http://hmed.vn/upload/files/ribibonarilewaso.pdfIn PDF document text
- http://ms-krmelin.cz/app/webroot/files/files/gakubatazulodup.pdfIn PDF document text
- http://kimwendelldesign.com/ckfinder/userfiles/files/sixezokefuvavug.pdfIn PDF document text
- http://website-design-company.in/dev3/damodar/ckfinder/core/connector/php/userfiles/files/puvowozekijov.pdfIn PDF document text
- http://xn--80aamwn.xn--p1ai/userfiles/file/resavaloratonadodojap.pdfIn PDF document text
- http://n2nnetworks.com/files/others/dekofomatobulikasapanip.pdfIn PDF document text
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/4ef6a7eb1964ccb745e7526111b2d51e/65362052601.pdfIn PDF document text
- http://noithatachau.vn/webroot/img/files/47802321579.pdfIn PDF document text
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/a0faa72058fab70965297ae70bffb967/72938395105.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/1614a082a59a4a---tudexobediwuguju.pdfIn PDF document text
- http://mehmetrasimmutlu.com/icerik/file/garabopojugifakefekiwepi.pdfIn PDF document text
- https://arhometutor.com/userfiles/file/kelenubiniteb.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/guzegelixolexela.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_off0000c32f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC32F | 16876 bytes |
SHA-256: 4bc2cc2dba705532114d78ba5045eaac2b185b3a35a40a09924f734f9baa8583 |
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font_01_sfnt_off0000eec0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEC0 | 10232 bytes |
SHA-256: fa4ec23cbc54d1175af6d45dee26e1112a4550b832019d6e2b8603c294d4471e |
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font_02_sfnt_off000105dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105DC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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