Malicious PDF — malware analysis report

Static analysis result for SHA-256 5394f6d227c4020b…

MALICIOUS

PDF

69.2 KB Created: 2021-03-04 04:25:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: b8aab62c0e1a5e690580165e8c46e7ee SHA-1: 236f7a0ab7426cf864e07c929aec4600b2cc2b08 SHA-256: 5394f6d227c4020b686c7134b03123ece66217741a842dffda57a8e700925c70
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://jacksth.ru/award?keyword=libro+de+geograf%25C3%25ADa+cuarto+grado+2020+contestado PDF link annotation
    • http://help-business-media.com/probability_shiryaev_downloadl22rm.pdfIn PDF document text
    • http://liketime.fun/nile_valley_civilizationu3nuj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494888/normal_5fd3166dd2362.pdfIn PDF document text
    • http://specialsale.info/how_to_reset_danby_dehumidifierqlyko.pdfIn PDF document text
    • https://dofemavuxowag.weebly.com/uploads/1/3/0/7/130739836/bazavazedelobav.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413583/normal_5fc73335cee2c.pdfIn PDF document text
    • https://ragurinibobuma.weebly.com/uploads/1/3/3/9/133986244/1f83048b366e8c.pdfIn PDF document text
    • https://tidumexuxuzi.weebly.com/uploads/1/3/1/0/131071252/bewivenu_xuwuzolon_luzeve_sivipegiku.pdfIn PDF document text
    • https://moxetutatag.weebly.com/uploads/1/3/4/2/134234950/zaborenemedexon.pdfIn PDF document text
    • http://clyb-wylcan3.space/beat_street_customeajtr.pdfIn PDF document text
    • http://kersita.space/how_do_you_set_the_date_on_a_citizen_eco_drive_watchc6v7e.pdfIn PDF document text
    • https://nosuzodudoj.weebly.com/uploads/1/3/4/5/134588086/8594330.pdfIn PDF document text
    • http://tehnotop.site/xopumofoku6a4s1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372737/normal_600fd57a5e203.pdfIn PDF document text
    • http://experiment.website/mankiw_macroeconomicsfvs3w.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419205/normal_5ffcbf3dc5523.pdfIn PDF document text
    • http://ig-soft-team.com/61670979450pd9ue.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zujugefov.rf.gd/81785499699.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/42320386231.pdfIn PDF document text
    • https://s3.amazonaws.com/jigezilor/impressora_samsung_xpress_c480fw_manual.pdfIn PDF document text
    • http://xivanokajeze.epizy.com/mosameguvedavisexow.pdfIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/762815528.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_off0000ce74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE74 5564 bytes
SHA-256: 7401740a254f53e0c2252cbd1d760b7c5f81c60180a766f32c7ade98423970e3
font_01_sfnt_off0000e17c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE17C 10728 bytes
SHA-256: 13f4e0b9edf56deadded9ba34a1462fea69cf0d6be9c4cf5dd5cc155b52a55da

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