Malicious PDF — malware analysis report

Static analysis result for SHA-256 2366b346be0843f7…

MALICIOUS

PDF

80.7 KB Created: 2021-02-27 02:31:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: c6cd71a45fda8ae07646e1dc8e37d2a4 SHA-1: 24e00807bd17fa2d1c436b450075d24999cef561 SHA-256: 2366b346be0843f7fea62fb2d911a1f66d6961863f6072e72d6ba1e11053932a
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. The presence of embedded URLs, specifically `https://zajinet.ru/award?keyword=will+adt+alarm+work+without+power`, suggests that the document is designed to redirect users to a potentially harmful website. While no scripts were explicitly extracted, the PDF structure and embedded URLs are consistent with phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://zajinet.ru/award?keyword=will+adt+alarm+work+without+power PDF link annotation
    • http://rawoxaxevog.mygamesonline.org/ejemplo_dialogo_directo.pdfIn PDF document text
    • http://ziwusis.getenjoyment.net/pesanuzibijixenidajubiso.pdfIn PDF document text
    • http://bcpreactiva-enlinea.com/low_oxalate_dietox24z.pdfIn PDF document text
    • http://vopugixeroramox.medianewsonline.com/el_amor_en_tiempos_de_colera_sinopsis_libro.pdfIn PDF document text
    • http://xoziduso.mypressonline.com/probability_and_stochastic_processes_3rd_edition_free.pdfIn PDF document text
    • http://mabay.fun/eclipse_cdt_ubuntu_14._047qs99.pdfIn PDF document text
    • http://rolopigabetitu.scienceontheweb.net/62086751397.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/tinajabizoreguf/49422400652.pdfIn PDF document text
    • https://s3.amazonaws.com/pibajuwi/17587672969.pdfIn PDF document text
    • http://tiluxusimutine.atwebpages.com/liver.pdfIn PDF document text
    • https://s3.amazonaws.com/megulu/pufijumaj.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/lutaduvomidedaki.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/zilizijibonisud.pdfIn PDF document text
    • https://s3.amazonaws.com/tubupejevomo/free_yahoo_mail_for_computer.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/ps4_lego_harry_potter_1_4_hogwarts_castle.pdfIn PDF document text
    • http://kedisijusa.onlinewebshop.net/tokozifegiw.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/change_git_commit_message_template.pdfIn PDF document text
    • http://wadoromutisagar.myartsonline.com/84730096754.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_off000100e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100E1 5188 bytes
SHA-256: b1a91059f10808bc9de7e80cf9e4406de80191aefe0390312292fb7e89b63e1d
font_01_sfnt_off00011274.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11274 10276 bytes
SHA-256: d2d5ea6a878e33d849ab1bedce8e34fffa3221f2874757ec8cc42b6b2e1f653f

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