Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cdaa65224138a67…

MALICIOUS

PDF

72.3 KB Created: 2021-02-06 21:02:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f85fcdfd56408cb8f8d669cfae2323ee SHA-1: 3f85016981aef3776b9e71ba6f08be00348dbd79 SHA-256: 9cdaa65224138a67abe7dfb3449b64ca22d5666fc041ccd893c9fdbec4886b2d
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://maypoin.ru/wb?keyword=meek%20dreams%20and%20nightmares PDF link annotation
    • http://kernig.pro/48980474420ntv7j.pdfIn PDF document text
    • https://rugilebeme.weebly.com/uploads/1/3/1/3/131380811/soxuxadovuve.pdfIn PDF document text
    • http://carbags.site/hootsuite_digital_report_2019nbt8i.pdfIn PDF document text
    • http://alluniversity.fun/orgulloso_de_ser_chapin_nelson_lealb3nw7.pdfIn PDF document text
    • https://lorolefe.weebly.com/uploads/1/3/1/8/131871725/nosafemojitonala.pdfIn PDF document text
    • http://supernefritroller.xyz/comportamiento_organizacional_hellriegel_slocumomlyn.pdfIn PDF document text
    • https://wupizesave.weebly.com/uploads/1/3/4/5/134581048/liwagajevatisejadog.pdfIn PDF document text
    • http://sewalenugebob.iblogger.org/viwutojowunime.pdfIn PDF document text
    • http://mon-cmbretagne.com/ratio_and_fraction_worksheet_grade_6uosff.pdfIn PDF document text
    • https://cdn.sqhk.co/sepunaro/hihdjas/67741991647.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bonubenevutura.epizy.com/gabetevilumodosebewar.pdfIn PDF document text
    • http://pipinodojo.epizy.com/ecco_guidelines_iron_deficiency.pdfIn PDF document text
    • http://wajiletum.epizy.com/b_a_pass_full_movie_hd.pdfIn PDF document text
    • http://fusifovizit.rf.gd/ashcroft_technology_academy_uniform_shop.pdfIn PDF document text
    • http://wujawejibizub.epizy.com/83389490633.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_off0000e0c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C4 5276 bytes
SHA-256: 64282b04e4e403f62c8def244dff206da60a5e8908429fd4039ec40183ff9210
font_01_sfnt_off0000f290.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF290 9928 bytes
SHA-256: d9a2bff8f0704aa34fb930dba64fb7338050ccace2d66db567d9e808a45e1b13