Malicious PDF — malware analysis report

Static analysis result for SHA-256 e480974dbcd258fd…

MALICIOUS

PDF

74.5 KB Created: 2021-03-02 02:56:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a09f40bdee0196fcf404aa1f1cb651fd SHA-1: e93df5851c2c562f3d3e517194c2c2df8c5f35a1 SHA-256: e480974dbcd258fde9ba21d1cdf4819565e8a41e0be9a11e1b75011887ca1cf2
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://xajibur.ru/award?keyword=what+does+it+mean+to+dream+about+zombie+apocalypse PDF link annotation
    • http://finuxezanasa.mygamesonline.org/fukedumas.pdfIn PDF document text
    • https://cdn.sqhk.co/wodelaganav/cjibDje/masha_and_the_bear_games_free_download.pdfIn PDF document text
    • http://xawegap.mywebcommunity.org/bifadimuwabunojax.pdfIn PDF document text
    • http://fukiwurezopukof.mywebcommunity.org/axial_scx10_3_rtr.pdfIn PDF document text
    • http://zugapuvu.mywebcommunity.org/ap_lang_essay_grading_scale.pdfIn PDF document text
    • http://finipupote.mywebcommunity.org/gre_math_practice_tests.pdfIn PDF document text
    • http://fuvesozufinefi.medianewsonline.com/what_are_the_different_types_of_text_messages.pdfIn PDF document text
    • http://jipolavex.medianewsonline.com/journey_to_the_center_of_the_earth_cast_2.pdfIn PDF document text
    • https://cdn.sqhk.co/butuxolevu/rhfMiaR/custom_stickers_cheap_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/vitimosugu/xIgcsha/deck_eleven_railroads_mod_apk_revdl.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/zumomasugipeno/77765274797.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/manifest_destiny_lesson_plan_5th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/mevinuwegikomeli.pdfIn PDF document text
    • http://pumumiz.epizy.com/vodifafosujolizavubakefaw.pdfIn PDF document text
    • http://wafitiw.epizy.com/xovepavileb.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_off0000e48d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE48D 5620 bytes
SHA-256: 531c86ccabe7c6eb209264d1c87ed7a715fef2d216bb6d0d34e3f48787b42a03
font_01_sfnt_off0000f792.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF792 10936 bytes
SHA-256: a600cdcfa6e18e2174aa50961f73c2eaef12dbe828e0c90ce63047bbfe7941f5