Malicious PDF — malware analysis report

Static analysis result for SHA-256 b89faadf84774da2…

MALICIOUS

PDF

72.3 KB Created: 2021-02-11 20:40:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 8ea3488143b08794ed76ea766bfc34c2 SHA-1: 9f4fe74781a264f2e66fc1a114a971995c39ad5f SHA-256: b89faadf84774da2d19cb816b4e6f8e0d938f55572da359a057a4365e2d79d59
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://maypoin.ru/wb?keyword=badrinath%20telugu%20movie%20songs PDF link annotation
    • https://kibidabusiben.weebly.com/uploads/1/3/1/0/131070702/2807765.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406228/normal_600e3fddaf5b9.pdfIn PDF document text
    • http://vvd.bar/shooter_walter_dean_myerslspfn.pdfIn PDF document text
    • https://cdn.sqhk.co/lafuwexale/4cdkcvG/merge_dragon_event_not_working.pdfIn PDF document text
    • https://lifedeji.weebly.com/uploads/1/3/0/7/130739993/vozedusu.pdfIn PDF document text
    • https://cdn.sqhk.co/fipufose/jhejiNm/among_us_game_age_rating_uk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473035/normal_5fd335535fda7.pdfIn PDF document text
    • https://noduxulab.weebly.com/uploads/1/3/4/9/134901810/jenugetojewe_zebarajufujam.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450034/normal_5fcf1fc7c503c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423460/normal_601b4c0d909b1.pdfIn PDF document text
    • https://cdn.sqhk.co/lodikorep/gjE4gjf/just_smash_it_coupon.pdfIn PDF document text
    • https://kojaxinepizoju.weebly.com/uploads/1/3/1/8/131856409/1023a3cf8.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/muvojugejoxip/59164897270.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzakob/serious_side_effects_of_metformin.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/19943307454.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_off0000dce9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE9 5348 bytes
SHA-256: a893209bf504f237bfdf93b81a644ab8ccbda2d229c86a6a94e4290367a5344e
font_01_sfnt_off0000eef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEF6 11132 bytes
SHA-256: a979540cabe667964da3d77e1e7516de13e278cbbf90773ff6b59421b31d8934