Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d224251bff4bc03…

MALICIOUS

PDF

86.3 KB Created: 2021-04-23 13:40:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 27dde55bb144cc33065d83c1d89ac460 SHA-1: cd8c2c93e8a48f25615f236323a4557bb0265275 SHA-256: 2d224251bff4bc0318fe72ac3449da4526817345a65af499de7883d2a0ca0212
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • Embedded URL info EMBEDDED_URL
    One 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://leonvi.ru/strik?utm_term=what+to+wear+to+a+day+party+in+the+fall PDF link annotation
    • http://joxutikomujawi.iblogger.org/bersa_thunder_380_trigger_job.pdfIn PDF document text
    • http://mibemuxagegija.mywebcommunity.org/aprendizajes_clave_preescolar_descargar.pdfIn PDF document text
    • http://jotitojimo.mygamesonline.org/kebukemufuwipakivuso.pdfIn PDF document text
    • http://vevufilusik.scienceontheweb.net/gewinegajut.pdfIn PDF document text
    • http://solusaxisabo.scienceontheweb.net/jukonope.pdfIn PDF document text
    • http://vemonubamupol.iblogger.org/sodiguzuvamizejen.pdfIn PDF document text
    • http://wigewanadowo.22web.org/51165271914.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wovitiku/103880206.pdfIn PDF document text
    • http://wiwekunu.rf.gd/67521689266.pdfIn PDF document text
    • http://fiwiduropewoxo.rf.gd/kowabupitudoka.pdfIn PDF document text
    • https://s3.amazonaws.com/difigomisosak/command_prompt_for_android_free.pdfIn PDF document text
    • https://s3.amazonaws.com/polojuliragam/tutaza.pdfIn PDF document text
    • https://s3.amazonaws.com/firudegix/zalamaraxadowon.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/bivuniganepib.pdfIn PDF document text
    • https://s3.amazonaws.com/tolivajupeku/kizosoluteme.pdfIn PDF document text
    • https://s3.amazonaws.com/satudifin/vb._net_tutorialspoint.pdfIn PDF document text
    • http://poxoner.rf.gd/jafewezoxefasazosola.pdfIn PDF document text
    • https://s3.amazonaws.com/farokof/yard_machine_riding_lawn_mower_blade_removal.pdfIn PDF document text
    • http://patepupitisozaw.epizy.com/firewall_security.pdfIn PDF document text
    • https://s3.amazonaws.com/wizomoravazub/wakizepujunuvusixowavoxi.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/sharp_cv-2p10sx_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/zojezifidobujax.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000113b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113B5 5156 bytes
SHA-256: 1696dae6ab9c3b4c517a2f98c0d5e9736993119c1490cb52e386c8c6c011b288
font_01_sfnt_off0001255b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1255B 11152 bytes
SHA-256: 95f9f836cf252cff2ef1282ad92725faafce8ccaaeff16103eaee9080c0b617f

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