Malicious PDF — malware analysis report

Static analysis result for SHA-256 2647f8bf6d22d61b…

MALICIOUS

PDF

78.5 KB Created: 2021-03-02 06:02:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: f5bed440bcb092baeda9676914ffd098 SHA-1: ed64b677f18a8d7b373cbbbc8c627aedfab5619a SHA-256: 2647f8bf6d22d61b3739e50a61fc7ae9ac871c429696bc58d3936fe2f10b37c2
96 Risk Score

Malware Insights

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

The file is a PDF document that contains multiple embedded URLs, one of which is associated with a phishing lure related to 'anxiety attack cure yoga'. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://zajinet.ru/strik?utm_term=anxiety+attack+cure+yoga PDF link annotation
    • http://vizilirudigub.getenjoyment.net/historia_de_la_iglesia_cristiana_primitiva.pdfIn PDF document text
    • http://itawegan.space/kawuwipolixemuzumede75l6o.pdfIn PDF document text
    • http://cashbackk.site/nobugofapekivxjrk.pdfIn PDF document text
    • http://simultaneously.space/sweet_child_girl_imagetzwwl.pdfIn PDF document text
    • http://nijaxubazaziw.mypressonline.com/world_war_z_2_movie_cast.pdfIn PDF document text
    • http://dipunag.getenjoyment.net/how_to_use_control_solution_for_true_metrix.pdfIn PDF document text
    • http://iqecoportal.ru/31229835417aome.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493221/normal_5ff321b944879.pdfIn PDF document text
    • http://lubenoredeji.mypressonline.com/the_universe_has_you_quotes.pdfIn PDF document text
    • http://sobakin.space/18195293678tzewm.pdfIn PDF document text
    • http://begemotiks.fun/root_word_mitosis_meaninge2r8e.pdfIn PDF document text
    • http://winwites.space/txdot_form_130-u_instructionsl36lm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427498/normal_5febf319a0c55.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/xuzed/26336286435.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/53795756623.pdfIn PDF document text
    • https://s3.amazonaws.com/gudukupir/clair_de_lune_guitar_duet_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/setigafat/roguwotowemoladozirodap.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_off0000e96f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE96F 4864 bytes
SHA-256: 815256c27a58168404de0c216c70b866e8a07aef9ce74b03eb8c4be467088dbc
font_01_sfnt_off0000fa11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA11 10680 bytes
SHA-256: e52276bd18f9ec890d3e5b5bf3ae1f70b26ff6f1be1e7d476f883c0a01990eaf
font_02_sfnt_off00011ea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EA2 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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