MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting it's designed to redirect users to a large number of other sites. The ClamAV detection and ML classifier also indicate malicious intent, likely phishing or malware distribution. The embedded URL `https://xajibur.ru/123?utm_term=necrose+caseosa+tuberculose+pdf` is a primary indicator of this redirection behavior.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 5
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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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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://xajibur.ru/123?utm_term=necrose+caseosa+tuberculose+pdf
- https://cdn-cms.f-static.net/uploads/4414491/normal_6049e76c5c92f.pdf
- https://static.s123-cdn-static.com/uploads/4420604/normal_5feb39a518863.pdf
- https://cdn-cms.f-static.net/uploads/4425501/normal_5fd1bf693b185.pdf
- https://wibafodutaselo.weebly.com/uploads/1/3/1/3/131380847/difog_xafube_zifewijuv.pdf
- https://tofeniva.weebly.com/uploads/1/3/4/6/134625175/xixodizat-nanabixe-gifotu-tokun.pdf
- https://luxotavazab.weebly.com/uploads/1/3/4/3/134349810/nezimusimekixeda.pdf
- https://cdn-cms.f-static.net/uploads/4413567/normal_60470dc4af38b.pdf
- https://cdn-cms.f-static.net/uploads/4424935/normal_60382dfce2826.pdf
- https://cdn-cms.f-static.net/uploads/4493888/normal_60584e09a069c.pdf
- https://static.s123-cdn-static.com/uploads/4454432/normal_5fddc6caf1398.pdf
- https://revasarubon.weebly.com/uploads/1/3/5/2/135295272/gobawuzofad.pdf
- https://malitizume.weebly.com/uploads/1/3/4/0/134097131/3408925.pdf
- https://bubawupuga.weebly.com/uploads/1/3/4/3/134380130/zevufudujulow.pdf
- https://rijevolokawuja.weebly.com/uploads/1/3/4/6/134661742/2105189.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/9085bdf8-ff6a-4bb7-a93b-50c2053ff21f/cryptography_and_network_security_william_stallings_3rd_edition.pdf
- https://uploads.strikinglycdn.com/files/32de00a8-6d52-4eab-9eab-35496b9c61eb/27837586444.pdf
- https://uploads.strikinglycdn.com/files/d1aa0113-7ce4-4ebf-a395-90d40f1209ee/8688915518.pdf
- http://depowota.pbworks.com/f/descargar_libro_de_espaol_lecturas_segundo_grado_1993.pdf
- https://uploads.strikinglycdn.com/files/39010d70-fbe7-4b72-829e-c8fb54b5cfa2/5517510029.pdf
- https://uploads.strikinglycdn.com/files/c69a6c2c-efe3-4755-b7af-b7fd5496f890/kotibifobuzi.pdf
- http://bawamotijeku.pbworks.com/f/vehicle_maintenance_schedule_forms.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f697.bin34260a421d55521e9e7d4fe558bb5d4baf340c2c7bb5291311642957442e3742 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF697 | 5256 bytes |
font_01_sfnt_off00010884.bina47984a034f6e478351728941476639d45b19f825bcbcba1859942776674354b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10884 | 13116 bytes |
font_02_sfnt_off00013017.bin99ddc6f5858eb134f8024171ebe717cbd02485c31471b921a5021903b5272953 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13017 | 16060 bytes |
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