Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae972d0e05609fb4…

MALICIOUS

PDF

72.3 KB Created: 2021-02-25 07:19:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 984fd6762884ceea991280b7f5b0edf3 SHA-1: b4210afddf0049135f27daf3347326561ec3b6cd SHA-256: ae972d0e05609fb4a29b0b35364e2156dcf6c322782893cc693d59e5c6d533be
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://leonvi.ru/wix?keyword=horror+games+unblocked+granny PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4474450/normal_5feb1d9f5afca.pdfIn PDF document text
    • http://levantemosaic.com/nisalupugi5f2u.pdfIn PDF document text
    • http://mobivegu.22web.org/xolevibasopuwoko.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368985/normal_5fd830999fa68.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423454/normal_6003cbc5bdcdc.pdfIn PDF document text
    • http://usersdeviceprotectionservice.site/5360936390696x2w.pdfIn PDF document text
    • http://hydra.moscow/ejercicios_ecuaciones_de_primer_grado_1_esolbxs7.pdfIn PDF document text
    • https://cdn.sqhk.co/gekobegij/ejfeVje/how_to_get_teacher_assistant_certification_in_texas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448545/normal_5fd8cad534168.pdfIn PDF document text
    • http://pazadixokumox.sportsontheweb.net/99928200342.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388841/normal_5fe9ad2903056.pdfIn PDF document text
    • http://saudiautoinsurance.com/mapping_the_rock_cycle_worksheet_answers23wuq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482636/normal_602d7eec2db3c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://boxomivesamazi.epizy.com/how_to_dress_for_medical_assistant_interview.pdfIn PDF document text
    • http://kakarares.epizy.com/animated_wallpaper_android.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_off0000e00a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE00A 5524 bytes
SHA-256: 29958b92096e0fddca6f38fd438c9c49800c5ab283e62b1acc446b2eb169b01f
font_01_sfnt_off0000f2c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2C0 9916 bytes
SHA-256: d431423f4ce2ecd64d1e673cb5773e288e21fe6c7ff14cd8cb29df42a2b2f959