Malicious PDF — malware analysis report

Static analysis result for SHA-256 47a410a61a78b588…

MALICIOUS

PDF

76.9 KB Created: 2021-03-17 04:24:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 36597f073c2f4236fe2d32995bcd4ebf SHA-1: 508a7cc5353e643ddec4fbf9bcdc43fc3df89949 SHA-256: 47a410a61a78b5887e74064eb00b58e7a12ce9837f75d8d151184883769f1337
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that directs the user to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to malicious content, potentially leveraging exploits or social engineering.

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://vilenefex.ru/wix?keyword=dayz+livonia+map+with+town+names PDF link annotation
    • http://siwosupegejolop.medianewsonline.com/nawuzotowinidudixofas.pdfIn PDF document text
    • http://letekidela.iblogger.org/39046458053.pdfIn PDF document text
    • http://kakorezikudu.mypressonline.com/cells_and_batteries_chargeable_and_non_chargeable.pdfIn PDF document text
    • http://lubevos.scienceontheweb.net/financial_modeling_with_crystal_ball_and_excel_2nd_edition.pdfIn PDF document text
    • http://vevaxogejaz.scienceontheweb.net/vimafudifusivasezinisez.pdfIn PDF document text
    • http://sadegobawuzufos.22web.org/xufaxezubezifut.pdfIn PDF document text
    • http://vulufinagi.mypressonline.com/vufefatiwijilofawefumoli.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/lulelepese/fuzob.pdfIn PDF document text
    • https://s3.amazonaws.com/poresi/fluval_206_filter.pdfIn PDF document text
    • https://s3.amazonaws.com/lezerawe/fax_cover_sheet_example_filled_out.pdfIn PDF document text
    • http://merizipu.rf.gd/27165909122.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/71944640728.pdfIn PDF document text
    • http://wufagezigedo.onlinewebshop.net/eczema_nummular.pdfIn PDF document text
    • http://lumosaneja.onlinewebshop.net/pes_manual_usmc_2018.pdfIn PDF document text
    • http://renirorevebu.epizy.com/4297290738.pdfIn PDF document text
    • http://giwaseluje.rf.gd/79418269464.pdfIn PDF document text
    • http://vazorilumi.epizy.com/norisuxigiwokod.pdfIn PDF document text
    • http://mojozore.myartsonline.com/dutosefitipuxof.pdfIn PDF document text
    • https://s3.amazonaws.com/damerirazib/45039406890.pdfIn PDF document text
    • http://zogadawedalifap.onlinewebshop.net/94809132574.pdfIn PDF document text
    • http://zugujegezamuto.epizy.com/video_from_facebook_app_ios.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_off0000e639.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE639 5268 bytes
SHA-256: 7030cdceb11bb5d4d1d1f588394b921fd83765c895e2e30440727be276738662
font_01_sfnt_off0000f827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF827 14860 bytes
SHA-256: c1f0904827c620c860942389e947c66afe5f326dda0fc4aaa860d7baefe0ea6a

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