Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eae3d951bed2004…

MALICIOUS

PDF

93.5 KB Created: 2021-03-20 16:52:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: af9f52922c508fd827596c777d723433 SHA-1: a42b59b37e41aa543f7ad187634f7db762cf6444 SHA-256: 4eae3d951bed2004da47ace5254de86648e4972dda9501db9bbcb639d1f4b0f9
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that redirects to a suspicious domain, likely intended to host a phishing page or download further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit vulnerabilities or trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/strik?utm_term=causes+of+fertility+transition+in+africa PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4450139/normal_603625e483159.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463808/normal_5fe2f11f832a2.pdfIn PDF document text
    • http://mixezitubut.mygamesonline.org/enterobacterias_productoras_de_blee.pdfIn PDF document text
    • https://zesidorav.weebly.com/uploads/1/3/1/4/131437831/nokiduga_nawewebafanol.pdfIn PDF document text
    • https://vukisopir.weebly.com/uploads/1/3/0/7/130776420/xopetabom.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404293/normal_5fe1cc199077d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388271/normal_5fe175855b7ed.pdfIn PDF document text
    • https://vemideluguzuni.weebly.com/uploads/1/3/4/6/134680431/67216f965cc4264.pdfIn PDF document text
    • https://kapefamutom.weebly.com/uploads/1/3/4/8/134849172/5698512.pdfIn PDF document text
    • http://sijubuwejipamun.mywebcommunity.org/6538793.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447906/normal_6008e20541110.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367297/normal_600a2929122f0.pdfIn PDF document text
    • http://vajukadezazi.getenjoyment.net/operaciones_combinadas_con_fracciones_con_races_radicales_y_potencias_ejercicio_resuelto.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460466/normal_601467edab21a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410004/normal_6012098e88597.pdfIn PDF document text
    • http://modozadubop.mywebcommunity.org/58090733435.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kepawomokatuke.myartsonline.com/ratebedovodowi.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/new_aha_lipid_guidelines_2018.pdfIn PDF document text
    • http://jumawivowibeb.onlinewebshop.net/pirates_of_the_caribbean_piano_duet_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/somisilegex/onan_4.0_rv_genset_generator.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
    • 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.

FilenameKindSourceSize
font_00_sfnt_off00011dc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DC8 4884 bytes
SHA-256: b06e463194b0e9a3877bd1281975ad8f7f7a8164a3d60041a9643cbf337d7ee5
font_01_sfnt_off00012e75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E75 10828 bytes
SHA-256: f67926f16f2ce0f2437edaf510e90c19cc8c62d6b15c553dda2abc0496eaeba3
font_02_sfnt_off000153c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x153C2 16060 bytes
SHA-256: d1a84ba8f0e4a827a048d387db8dd5dae3538f1c7e72415b16af587a9947cdc7

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