Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fda058e5c812c2a…

MALICIOUS

PDF

71.9 KB Created: 2021-02-20 06:55:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a8d543daf10a86bcd63d4efa838e692f SHA-1: f965e84552e31b31e95bb3dc31090143f497be02 SHA-256: 5fda058e5c812c2a1c0b73b353ad1a3e7a19200b2958f7b213c9e4e3400a5453
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://baarspo.ru/wix?keyword=resurrection+remix+os+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4447276/normal_5fd666267e97d.pdfIn PDF document text
    • https://cdn.sqhk.co/wojipezusax/jgqhcOl/31693608424.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489593/normal_5fed82469a47e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485010/normal_5fef8c858ad85.pdfIn PDF document text
    • https://cdn.sqhk.co/fenazijeguk/jeZhfu3/v_moda_m100_master_amazon.pdfIn PDF document text
    • https://cdn.sqhk.co/fumamimed/hghdr5d/jegodijitovuf.pdfIn PDF document text
    • http://xofenejilomoz.iblogger.org/frankenstein_study_guide_chapter_13-_15.pdfIn PDF document text
    • https://cdn.sqhk.co/revukone/jhicZgg/orange_balls_on_cedar_trees.pdfIn PDF document text
    • https://cdn.sqhk.co/dakizenewa/nhhggdE/holst_mars_score.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413011/normal_5fe85799f3442.pdfIn PDF document text
    • http://vegemisabuxum.22web.org/enfermedades_que_causa_el_alcoholismo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402949/normal_5ff1b19f38041.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386824/normal_6017353b2dbae.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424011/normal_5fe173da19e3e.pdfIn PDF document text
    • http://kudukulid.22web.org/33025444221.pdfIn PDF document text
    • https://cdn.sqhk.co/vemegunir/gfmgghb/sabara.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://monufurojebuwod.rf.gd/honda_cbx750_service_manual.pdfIn PDF document text
    • http://dabevejef.rf.gd/android_studio_generate_code_coverage_report.pdfIn PDF document text
    • http://balupamujoti.rf.gd/how_to_access_samsung_refrigerator_ice_maker.pdfIn PDF document text
    • http://rexagoxew.epizy.com/careless_whisper_alto_sax.pdfIn PDF document text
    • http://texegap.epizy.com/anecdotal_information_childcare.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_off0000dcb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB6 5188 bytes
SHA-256: 561668fbe106d547888fcdb968e8d7721e51bd2ad6dce082122e2700ab8aba36
font_01_sfnt_off0000ee49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE49 10668 bytes
SHA-256: 3b148b2863839446ed1db71aa166259e72ab140a7ae2c040fd1e390467efe581

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