MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to various domains, some of which are hosted on compromised CMS upload storage. The presence of 'utm_term' parameters in some URLs suggests an attempt to track user interactions, common in phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://archism.ru/uplcv?utm_term=spiral+movie+online PDF link annotation
- https://suacuasathcm.com/uploads/files/jizewobokuwikexe.pdfIn PDF document text
- https://seo-methodes.com/userfiles/file/vuzosawifutukope.pdfIn PDF document text
- http://cuacuonnhaxuongbinhduong.com/upload/files/95959525885.pdfIn PDF document text
- http://itagqatar.zajeltel.com/itag/file/files/rakewodatitomofiwipij.pdfIn PDF document text
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/161338841b621f---57982677557.pdfIn PDF document text
- http://biometria.pl/photos_fck/file/37481997895.pdfIn PDF document text
- http://e-junghan.com/userData/board/file/94592818979.pdfIn PDF document text
- http://sun-green.nl/ckfinder/userfiles/files/kazuzaximiveteripekujilad.pdfIn PDF document text
- https://icrs-as.com/userfiles/file/vusotiguxepepufakiko.pdfIn PDF document text
- http://www.klccpa.com/userfiles/file/In PDF document text
- https://fullmagicweekend.com/ckfinder/userfiles/files/12164783010.pdfIn PDF document text
- http://chongqinghaohong.com/upload/files/datowunosefoxipuluf.pdfIn PDF document text
- http://wuxihemei.com/ckfinder/userfiles/files/20210913_101524.pdfIn PDF document text
- https://www.agencesramos.com/ckfinder/userfiles/files/66572878541.pdfIn PDF document text
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/161431f88df6c2---79634312420.pdfIn PDF document text
- http://sumtinathholidays.com/admin/uploadfiles/file/20180326288.pdfIn PDF document text
- http://biirbeh.mn/images/content/file/41590295023.pdfIn PDF document text
- http://fastcredit.ge/userfiles/file/zojobiratojosolefupe.pdfIn PDF document text
- http://caopump.com/admin/userfiles/file/tobawalivusaj.pdfIn PDF document text
- http://erbamedica.org/userfiles/files/ruwuwukebobumirujoxorazo.pdfIn PDF document text
- https://kottayammedicalcollege.org/CMS/ckfinder/userfiles/files/18677859617.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614111bd030fa---getaworixam.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_off0000d7a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7A9 | 10288 bytes |
SHA-256: 01af68ca97dd89aa0258d66c209512e1f77238339e20b9bcb72ef1387ef727e0 |
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font_01_sfnt_off0000eec2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEC2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000106d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106D4 | 17300 bytes |
SHA-256: 402a453ad8569b6a8b100299e9117f32d5704605bd6cfbbbeea1dc92392872e1 |
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