Malicious PDF — malware analysis report

Static analysis result for SHA-256 07455ed6feb550ee…

MALICIOUS

PDF

68.5 KB Created: 2021-02-19 16:23:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9130e44db54adaeff0077b5a1eeed518 SHA-1: b699468bfcf55919ffecaab2960db2f3776fa0a5 SHA-256: 07455ed6feb550ee82318576bbd3362cd5cdffe239528712e60332daba81b951
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/wix?keyword=common+monomial+factor+worksheet+with+answers+pdf PDF link annotation
    • http://silvanozito.online/43862369640e63g1.pdfIn PDF document text
    • http://reactivaperu-2020.com/44356105730t4eei.pdfIn PDF document text
    • http://azorocheat1.xyz/rusalukewudadikonw2ze.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423699/normal_600c51aa6f13a.pdfIn PDF document text
    • http://wellwork.site/5543958689ysmqe.pdfIn PDF document text
    • https://nanuleseja.weebly.com/uploads/1/3/4/0/134012971/5986935.pdfIn PDF document text
    • http://lakabusomasa.22web.org/fufojulemuj.pdfIn PDF document text
    • https://fanamixaxa.weebly.com/uploads/1/3/4/0/134017579/birolipoj.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/pazatuv/4health_dog_food_feeding_guidelines.pdfIn PDF document text
    • http://fatesixinubumot.epizy.com/platform_court_heel_shoes_uk.pdfIn PDF document text
    • http://dujazenemelix.epizy.com/appointment_letter_format_for_design_engineer.pdfIn PDF document text
    • https://s3.amazonaws.com/jazuravazaguz/guideline_tours_europe.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/sheet_music_ode_to_joy_piano_beginners.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_off0000c8c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8C3 5456 bytes
SHA-256: bd97944d16e4ca68462229603078bff11491142d8ee89ac5502641e034b391db
font_01_sfnt_off0000db38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB38 13120 bytes
SHA-256: 926039ce681f1251b83cc0c1e5e1fa7dd1c3879880103c046656201d90e13e8d