Malicious PDF — malware analysis report

Static analysis result for SHA-256 40eb5dd3ab0e56d4…

MALICIOUS

PDF

75.1 KB Created: 2021-03-01 05:36:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0a496d313cbafabf4e918f70a3ec96d7 SHA-1: f264c91325893c9a162d0ad99ab899a50976ed8a SHA-256: 40eb5dd3ab0e56d4f9a37fc2113b4dce4cf80fdeb011b9e6cfbe3ea025f4fedc
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://mezovuduw.ru/123?utm_term=where+is+my+garbage+disposal+reset+button PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4421473/normal_5ff010ad0dcc0.pdfIn PDF document text
    • http://front-glass.website/41653870874gbldi.pdfIn PDF document text
    • http://rating-bookmaker.ru/43083280770nlj5g.pdfIn PDF document text
    • http://honey-love.ru/kibufozek65xad.pdfIn PDF document text
    • http://drilltech.info/how_to_make_your_clothes_glow_on_royale_highfwn4t.pdfIn PDF document text
    • http://wotidoteked.mywebcommunity.org/how_to_use_mini_keurig_machine.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414672/normal_5ff7f3a34fedf.pdfIn PDF document text
    • http://tovarzone.ru/enzymes_review_worksheet_answersrples.pdfIn PDF document text
    • http://tovarzone.ru/baskerville_mt_italic_font_free1f6aw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490121/normal_600441977d9fc.pdfIn PDF document text
    • http://cheapkeys.site/buduguna_songs_mp34umal.pdfIn PDF document text
    • http://beviluxenumiliv.mywebcommunity.org/best_python_learning_games.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/muvazi/wepejojonobozek.pdfIn PDF document text
    • http://xekabotiwuker.atwebpages.com/gaguwalol.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/14519267646.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_off0000e928.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE928 5628 bytes
SHA-256: 38d5bd408242bec8e8619f7ac4a56143ca6131e99c95e265b5424b1b5f8337ba
font_01_sfnt_off0000fc32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC32 10284 bytes
SHA-256: 2f135d5f729df4936be4ceca37fe3c486998fc7c807a3f9af2148ccdbb0060b1