Malicious PDF — malware analysis report

Static analysis result for SHA-256 6112acc6ced1346b…

MALICIOUS

PDF

63.6 KB Created: 2021-02-14 17:21:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b128057b1741a6e682d47c85d9d9d484 SHA-1: 93b860229bf6c9b7b2cf6a38f57cdcaea4449f9e SHA-256: 6112acc6ced1346bb8dbcf40b3a26ffd112adf820b70c719b1deb00c57258054
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://baarspo.ru/wix?keyword=centralia+junior+high+centralia+il PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382617/normal_6027a190937e7.pdfIn PDF document text
    • http://bubobimurasawe.iblogger.org/whatsapp_con_colores_apk.pdfIn PDF document text
    • https://teraxamexad.weebly.com/uploads/1/3/1/3/131380600/bajudufebajaxo_rojikaxat.pdfIn PDF document text
    • http://taxiditugivubed.iblogger.org/app_store_stuck_on_loading.pdfIn PDF document text
    • https://fulojexerewo.weebly.com/uploads/1/3/5/3/135345176/5546605.pdfIn PDF document text
    • http://fulusixavopowem.iblogger.org/riwarepuxeminevusufega.pdfIn PDF document text
    • https://pugiputofal.weebly.com/uploads/1/3/4/7/134740318/doweradom.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393188/normal_6007ee50b6a25.pdfIn PDF document text
    • https://fuxugikitoze.weebly.com/uploads/1/3/1/0/131070560/filomenemol_nafifot_mifokikavularok.pdfIn PDF document text
    • https://kunuxuzuvedenax.weebly.com/uploads/1/3/6/0/136051690/f4c0f19625feb.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/zomuzigo/lomigoxatigekati.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/yahoo_games_free_full_version.pdfIn PDF document text
    • http://lenixad.epizy.com/jazz_standards_trumpet_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/makalah_asma_pada_anak.pdfIn PDF document text
    • http://fabosiregoz.rf.gd/cashew_nutritional_information_per_100g.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_off0000bf4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF4B 4864 bytes
SHA-256: 40ab3b777d5dcd121ca59a298a3f8e39e0d9fa7b9159941001a09dea53465638
font_01_sfnt_off0000cfd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFD7 9852 bytes
SHA-256: f7b37a5060d860727fe2ebd422d785bbe324b6b7faa19f0156dae5ff7fa4ce6e