Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1e09d3a79457a0e…

MALICIOUS

PDF

72.3 KB Created: 2021-02-10 12:43:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a88757b9439347a0a95d5d116ddc8d6c SHA-1: 9da443464514235bec7575767b4ddcf02677a1d7 SHA-256: c1e09d3a79457a0ef139b0df1ba62b2ec4abb64b92e29e9cdfa1b37c5288ae6d
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://baarspo.ru/123?utm_term=china+in+ten+words+pdf+free PDF link annotation
    • https://cdn.sqhk.co/zururodi/hogf0jj/sazuganutobotivovija.pdfIn PDF document text
    • https://zovitixakozi.weebly.com/uploads/1/3/1/4/131483416/8749ed.pdfIn PDF document text
    • http://introdom.ru/37165821595bdjn4.pdfIn PDF document text
    • http://wonnaturila.space/vobanagetilolojenalopoxaerv3.pdfIn PDF document text
    • http://takojebuti.iblogger.org/58725251944.pdfIn PDF document text
    • http://lesantyqas.online/satilobirakufevr64t2.pdfIn PDF document text
    • https://cdn.sqhk.co/dafibuxoki/hjHXoQS/takevanudedugofolerekuki.pdfIn PDF document text
    • https://cdn.sqhk.co/kagaxavog/d2Tgf5R/whatsapp_background_wallpaper_size.pdfIn PDF document text
    • https://cdn.sqhk.co/bewewojiwo/ZImgfag/bubble_shooter_puzzle_soccer.pdfIn PDF document text
    • http://itfamily.pro/widorizazwyp3.pdfIn PDF document text
    • https://cdn.sqhk.co/manuguwe/hiGheig/calendar_schedule_planner_app_for_pc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://donafilozevore.rf.gd/tukuvasoginogarugupisanag.pdfIn PDF document text
    • http://xinetonorus.epizy.com/deladatuxetobo.pdfIn PDF document text
    • http://dowexibagodi.epizy.com/surewiw.pdfIn PDF document text
    • https://s3.amazonaws.com/fomaralunex/19092736727.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_off0000de86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE86 5092 bytes
SHA-256: a3d709eb6f7454a33c2d46d446d696c15e0452afb26c38b0bbc4fafd3423e0b2
font_01_sfnt_off0000efe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE1 10840 bytes
SHA-256: 65b3595228ba823c5d82f476714b22e4399ebb9e34230b1f37a3de8a1f8bafc8