Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d2ecd8c9d362932…

MALICIOUS

PDF

70.6 KB Created: 2021-02-18 08:49:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9fc7f546e4a1614e737bea70ca6c12a7 SHA-1: 9331b60ae9f17bccd3013fef1cc242dee1568799 SHA-256: 7d2ecd8c9d362932e38844b948418658c803216874a116d7672e1413df56c44a
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://druttle.ru/wix?keyword=the+daniel+plan+diet+pdf PDF link annotation
    • http://zonafuluza.iblogger.org/report_writing_lesson_plans_year_3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370068/normal_601799ab7694b.pdfIn PDF document text
    • http://repaircreditscore.info/algebra_connections_volume_1_answersv5bre.pdfIn PDF document text
    • https://disadaniti.weebly.com/uploads/1/3/4/4/134463451/kotalen_bovedadoko.pdfIn PDF document text
    • http://salonapp.xyz/sokuvew9i2y.pdfIn PDF document text
    • https://rapusixub.weebly.com/uploads/1/3/4/6/134631860/dewujufipe_kazoti_detepowifisug_bodowotokuwigiw.pdfIn PDF document text
    • https://wufunuxiropid.weebly.com/uploads/1/3/2/7/132712508/6632621.pdfIn PDF document text
    • https://cdn.sqhk.co/vuvupewog/eKig4Sg/vexed_crossword_clue_7_letters.pdfIn PDF document text
    • https://cdn.sqhk.co/xefijumu/K0MgcEU/74521044430.pdfIn PDF document text
    • https://temazojirilezin.weebly.com/uploads/1/3/2/3/132302863/1735081.pdfIn PDF document text
    • https://giberala.weebly.com/uploads/1/3/5/3/135306284/nupabired-tefelekutog.pdfIn PDF document text
    • https://cdn.sqhk.co/jojojidatun/MvtnBjf/free_mp3_download_for_iphone_website.pdfIn PDF document text
    • http://itawomen.fun/96964814266tn1ja.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501374/normal_5ffa6be8e1c0c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407795/normal_6007a3c639e9c.pdfIn PDF document text
    • https://vunuvuvoxi.weebly.com/uploads/1/3/4/8/134889930/b2b3c68cc9ca1e.pdfIn PDF document text
    • http://medicalpracticementor.com/cake_recipes_with_pictures_step_by_stepybvg4.pdfIn PDF document text
    • https://cdn.sqhk.co/fakosopalo/vhghjwx/best_license_plate_game_app.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zorijofoxafa.epizy.com/gemarusafugakut.pdfIn PDF document text
    • http://ragakinetepufub.epizy.com/falciparum_treatment_guidelines.pdfIn PDF document text
    • http://rurukiku.rf.gd/operations_research_master_degree.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_off0000d9a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9A3 4804 bytes
SHA-256: 3666e9d0fd92dedb744a8e81b5a2016b69eceaefe4acbf8a5880482e9f8751ef
font_01_sfnt_off0000e9fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9FB 10356 bytes
SHA-256: bc8d07d132ac1d7a9b44ee47e323277eb50808e7862f7960c3a5cb534f224464

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