Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ae47c3a4a75c4f9…

MALICIOUS

PDF

72.4 KB Created: 2021-02-14 22:20:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d371c454e6f8ffce82e508720280fbd0 SHA-1: 19cbf0de8299aadf3af38cf606cad0ac781b63e7 SHA-256: 7ae47c3a4a75c4f9bc9a21d84dfaea790eb8b642cf5570800d83d7daab18bb99
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://leonvi.ru/aws?utm_term=class+8+civics+chapter+3rd+question+answer PDF link annotation
    • http://idealica-ufficiale.site/xasabemowejubofo8mo7t.pdfIn PDF document text
    • https://cdn.sqhk.co/wejuladuke/eyjighd/star_wars_female_characters_x_male_reader_lemon.pdfIn PDF document text
    • http://shopeuro.pro/vobezebataditebetadap8t64l.pdfIn PDF document text
    • http://stixlife.info/rmw_2._2_g24_repair_manualostvi.pdfIn PDF document text
    • https://cdn.sqhk.co/jasamomedam/Q2zicMy/go_karts_houston_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/pododefakes/bgihdjd/best_c64_emulator_for_mac_os.pdfIn PDF document text
    • http://8bitbeardsco.com/new_baby_images_free2wwb5.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/sepovutapakogaf/91402150468.pdfIn PDF document text
    • https://s3.amazonaws.com/vonutavekip/1_mm_to_gauge_sheet_metal.pdfIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/47935009394.pdfIn PDF document text
    • https://s3.amazonaws.com/tosego/44306210955.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/18009795089.pdfIn PDF document text
    • http://sivopob.epizy.com/reflexive_and_reciprocal_pronouns_worksheets.pdfIn PDF document text
    • http://terefikug.epizy.com/49366672101.pdfIn PDF document text
    • https://s3.amazonaws.com/ninasivol/tailoring_enchanting_guide_classic.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_off0000dd52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD52 5704 bytes
SHA-256: c1af5a2d3b4b38f5a5ce9d678d543ce1cfec631134e6d9d5eb39ca10ce483827
font_01_sfnt_off0000f0c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0C3 10604 bytes
SHA-256: ddd4147e1d85873ea06e04767cc5ef15e16b7e85c90343932a76316ef80d6c88