Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac9fc0b5cac74444…

MALICIOUS

PDF

88.1 KB Created: 2021-03-20 18:31:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 74dd35cea3ce187eaee73adab99771b5 SHA-1: 0a598f504b5bb9de1c80d62def4b0a00f23996ad SHA-256: ac9fc0b5cac74444a39c92757bc50b9bdd7a3d360969d250a1bdd87bae5493bf
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that mimics a movie download link, a common lure for phishing or malware distribution. ClamAV and ML classifiers strongly indicate maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://xajibur.ru/123?utm_term=chaar+sahibzaade+full+movie+in+punjabi PDF link annotation
    • http://vakimudefevu.22web.org/advantages_of_whistleblowing.pdfIn PDF document text
    • http://movawizaxaxato.mywebcommunity.org/apc_550va_line_interactive_ups_surge.pdfIn PDF document text
    • http://suzamajotibe.mywebcommunity.org/argemone_mexicana.pdfIn PDF document text
    • http://lapiwudoxavov.scienceontheweb.net/breakpoint_chlorination.pdfIn PDF document text
    • http://toxipoxekej.medianewsonline.com/sp_gupta_statistical_methods_download.pdfIn PDF document text
    • http://lubenoredeji.mypressonline.com/annexure_c_form.pdfIn PDF document text
    • http://rixujewo.getenjoyment.net/79606020393.pdfIn PDF document text
    • http://lozejebivo.scienceontheweb.net/best_linux_distro_for_laptops_2020.pdfIn PDF document text
    • http://jonotijero.medianewsonline.com/bijamogumax.pdfIn PDF document text
    • http://revilokepudidu.mygamesonline.org/duxutapizagasif.pdfIn PDF document text
    • http://gekifek.scienceontheweb.net/samsung_wa48h7400aw_a2_parts_list.pdfIn PDF document text
    • http://munasimowijuxi.getenjoyment.net/bifomofiduzigapake.pdfIn PDF document text
    • http://zonagareme.getenjoyment.net/mysql_workbench_guide.pdfIn PDF document text
    • http://mumijivamivaxij.medianewsonline.com/edital_concurso_prf_agente_administrativo_2020.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/ziwuvijevo/ascom_platform_developer_components.pdfIn PDF document text
    • https://s3.amazonaws.com/bidurudilidujug/mewapajugotapa.pdfIn PDF document text
    • http://lebevinawefebo.rf.gd/80043918977.pdfIn PDF document text
    • https://s3.amazonaws.com/tiniruru/mugetijubonax.pdfIn PDF document text
    • http://xufoziminep.onlinewebshop.net/bevudazuzidaxemexasewi.pdfIn PDF document text
    • https://s3.amazonaws.com/zemunomipazikez/cfa_1_salary.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/83587225350.pdfIn PDF document text
    • http://bemuvarewu.onlinewebshop.net/consumo_de_alcohol_oms.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/69733740229.pdfIn PDF document text
    • http://gawupuzilolo.epizy.com/96933241192.pdfIn PDF document text
    • https://s3.amazonaws.com/fonazuzixagizir/contrato_de_arrendamiento_vivienda_urbana_minerva.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_off000118b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118B2 5512 bytes
SHA-256: 7f4963da4696d3ffa52a93e7cbb70f6f5cb0aacca11c782e44839ecb0f31167f
font_01_sfnt_off00012b4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B4F 11508 bytes
SHA-256: 5e06ef78f8e153dc8ead98eed159a2b059561542ed841475637f717f0f9d631b

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