Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1a2cdf4187935d6…

MALICIOUS

PDF

81.2 KB Created: 2021-02-11 15:11:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 34173c056548a7fd999df45e09c1945d SHA-1: 41b230f8a1a725fe456ce8c2c9c8efa898186af7 SHA-256: d1a2cdf4187935d6839eb1983bd3c6bac6d4387aab99cbfbca58c8ca9d8a851e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://jottigo.ru/wix?keyword=rate+my+voice PDF link annotation
    • http://rakuxijewimafud.22web.org/13548293948.pdfIn PDF document text
    • http://reduslim-officialsite.site/valapepubebezobotopufab1gu2s.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423453/normal_60219d75e50f1.pdfIn PDF document text
    • http://nowefewafugaki.iblogger.org/97058853177.pdfIn PDF document text
    • http://maska-respirator.shop/26611176736k6852.pdfIn PDF document text
    • http://itabody.space/lemonade_slushy_recipes_easy3adrb.pdfIn PDF document text
    • http://grenkasalo4.xyz/pocket_rocket_gun_slangevwtj.pdfIn PDF document text
    • http://soul-felt.com/file_from_s3_bucket_python_boto3gbo4a.pdfIn PDF document text
    • http://creamwalls.online/fichas_cte_septima_sesion_201953oba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461498/normal_5fe7552f7e716.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/ditiruz/video_converter_mp4_to_avi_android.pdfIn PDF document text
    • https://s3.amazonaws.com/timituvupame/eclipse_ide_for_ubuntu_64_bit.pdfIn PDF document text
    • http://sulumasofip.epizy.com/alcohol_withdrawal_syndrome.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/social_media_marketing_business_proposal_template.pdfIn PDF document text
    • http://zofigofaka.epizy.com/works_cited_mla_format_example_book.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_off00010140.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10140 4808 bytes
SHA-256: b9c300a985efb0b0d11d6947ce1ca43400ba61cce504921716a6200dd5f45a52
font_01_sfnt_off000111a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111A2 11332 bytes
SHA-256: eccc0ff2b064e842ee163bfcfcc88246ff3201ca2ae4d291749380f696054c4d