Malicious PDF — malware analysis report

Static analysis result for SHA-256 9af3b4ece2330cbe…

MALICIOUS

PDF

108.6 KB Created: 2021-03-31 09:48:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 57ad57b5cb76275ed82e9c1925985af5 SHA-1: 7331545db37a76b63b5245eb785a5b018a5bb342 SHA-256: 9af3b4ece2330cbe1079477a183679c610a49bd048e30808254d01f11e08e70a
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 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wix?keyword=genetic+disorders+webquest+answers PDF link annotation
    • http://ziwigosopijulal.mygamesonline.org/vaguxatin.pdfIn PDF document text
    • http://vujumitadasedi.22web.org/22_april_bangla_natok_2019.pdfIn PDF document text
    • http://odemebayisitrafik.com/final_fantasy_xvi_trailer_download416hj.pdfIn PDF document text
    • https://cdn.sqhk.co/bikugipozamu/cribieR/sanegonafidogime.pdfIn PDF document text
    • http://groby-ritual.online/juginikajajivujefutagqdfe1.pdfIn PDF document text
    • http://helplnstagramcontact6088758.com/fyi_for_your_improvement_-_competencies_development_guide_5th_editionwgo3g.pdfIn PDF document text
    • http://mafewagidimu.22web.org/7063628686.pdfIn PDF document text
    • http://fesufobototezer.mywebcommunity.org/textbook_of_biochemistry_for_medical_students_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/fapiwejagiz/x3jiZqY/87390763007.pdfIn PDF document text
    • http://1xbets-reg.site/livro_o_neoliberalismo_histria_e_implicaes85hi3.pdfIn PDF document text
    • http://rusakova.space/how_to_program_a_sony_tv_with_a_rca_universal_remotei3lnz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zabejuvijolu/limulonoxototujunofip.pdfIn PDF document text
    • https://s3.amazonaws.com/fasudikek/album_song_ringtone_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwotarotavuz/studies_motion_forces_and_energy_to_explain_why_things_work.pdfIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/4963403573.pdfIn PDF document text
    • https://s3.amazonaws.com/tidigudetefumof/bubble_bobble_game_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/53976750855.pdfIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/what_things_are_banned_in_russia.pdfIn PDF document text
    • https://s3.amazonaws.com/nakuzafol/72882994753.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015ef1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15EF1 5172 bytes
SHA-256: 0bd0e9eb052c06782e150c934f16c585bee985082419dfe94253f3e94ac285da
font_01_sfnt_off000170a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x170A5 11724 bytes
SHA-256: b097ace134d7938a6d4e002919cfc310f7d8c1bb52d9e01760f5e1ceb97bbd15
font_02_sfnt_off00019707.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19707 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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