Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ea8fbf29eca9410…

MALICIOUS

PDF

73.0 KB Created: 2021-03-02 13:25:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1e68a9ab032d7dcf07387706917b8e9e SHA-1: ed9ab97cb08fb633390ffa42a317b4b1d36500c5 SHA-256: 5ea8fbf29eca9410d4fb41b57b49c04e49e552bea1a11335450ad1b16ae3c9ad
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://resalured.ru/wix?keyword=lesson+10.1+the+geometry+of+solids+answers PDF link annotation
    • https://tererenigi.weebly.com/uploads/1/3/1/4/131405956/5736745.pdfIn PDF document text
    • https://cdn.sqhk.co/posebozej/1jiijhj/prison_break_season_1_cast_and_crew.pdfIn PDF document text
    • http://medtechnika1.ru/clicker_klik2u_wayne_daltonef0nw.pdfIn PDF document text
    • https://moforikegumiret.weebly.com/uploads/1/3/2/6/132680993/ebe4a763347fa09.pdfIn PDF document text
    • http://bahis-sikayet.com/what_is_the_difference_between_new_historicism_and_old_historicismh75ef.pdfIn PDF document text
    • https://zanasebumafuwaj.weebly.com/uploads/1/3/4/8/134899829/69c1ce7dbffb.pdfIn PDF document text
    • http://lestyprin.online/xivujazekitemiligwbtf.pdfIn PDF document text
    • https://cdn.sqhk.co/dekavaka/Djgb9hd/70819647608.pdfIn PDF document text
    • http://gnatural.space/gphr_study_guide_david_siler55k9z.pdfIn PDF document text
    • https://cdn.sqhk.co/teposodigar/HjjCJhe/.pdfIn PDF document text
    • https://cdn.sqhk.co/mojikeke/Zfahfhe/94520417373.pdfIn PDF document text
    • https://dusonomikeka.weebly.com/uploads/1/3/2/6/132695238/96fb3a66dde.pdfIn PDF document text
    • http://copyright-notice-ig.com/call_of_duty_ww2_online_split_screenajb0z.pdfIn PDF document text
    • http://deemonatrafik.xyz/31606193738t1xau.pdfIn PDF document text
    • http://xijulefabogi.getenjoyment.net/the_iliad_robert_fagles_ebook.pdfIn PDF document text
    • http://xuxetosufuzo.getenjoyment.net/how_to_connect_crosley_turntable_to_speakers.pdfIn PDF document text
    • https://fagojature.weebly.com/uploads/1/3/3/9/133987822/500287.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dapizodipe.myartsonline.com/andrew_jackson_political_cartoon_analysis_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/fizup/oppo_a37f_firmware_free.pdfIn PDF document text
    • https://s3.amazonaws.com/viregujipowuru/numofekomenikar.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_off0000dbf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBF6 5684 bytes
SHA-256: 6793f18d226523f905fe10d6f817eb8c3958ace174b351c2fa91a20cab208035
font_01_sfnt_off0000ef47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF47 11876 bytes
SHA-256: c559c63c6f7b0d75899c37056505ffb2ebe1fb7c45f08d423f895acdfc85a3ed

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