Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bcfb9e918319f38…

MALICIOUS

PDF

70.2 KB Created: 2021-03-02 01:55:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 49e2a4ab1ce458af30b5c9a0314c2558 SHA-1: f0adababb568cd3df7573c27b567f2d1bcd247e2 SHA-256: 5bcfb9e918319f388b37e9619a66662cab31f0b698297e4ced7c211abf693997
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://vilenefex.ru/award?keyword=the+real+book+of+real+estate+audiobook PDF link annotation
    • https://cdn.sqhk.co/bufudoraxala/d8G2Wfl/wofunojo.pdfIn PDF document text
    • http://warixedivukinat.mygamesonline.org/73484041399.pdfIn PDF document text
    • http://wovuwukotuvoxi.mygamesonline.org/dogowugab.pdfIn PDF document text
    • http://pemufosapakem.mypressonline.com/does_dollar_general_pay_holiday_pay.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378641/normal_601e41d350a28.pdfIn PDF document text
    • https://cdn.sqhk.co/jujuziwe/W0icgiu/servsafe_manager_practice_test.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482009/normal_600cec5387f6c.pdfIn PDF document text
    • https://cdn.sqhk.co/pekotegafod/iicglww/ravens_depth_chart_2017.pdfIn PDF document text
    • http://vumonivaxozutod.mypressonline.com/60695777726.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444850/normal_60252b0f8707a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415756/normal_5fcfa6abe95a5.pdfIn PDF document text
    • http://tejasatobes.medianewsonline.com/14552698873.pdfIn PDF document text
    • https://cdn.sqhk.co/retepisej/hhkjhjg/jobiwulididorejopudowow.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447267/normal_602089a4a7342.pdfIn PDF document text
    • https://cdn.sqhk.co/sinupupuzaxa/jfhfVgg/wixenudaxirivebovusen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472788/normal_6019870c09a08.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384645/normal_5fdba7835ca6d.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/votawawo/minecraft_pe_1._14_4.pdfIn PDF document text
    • https://s3.amazonaws.com/bamepofewalada/gemadilenonoxubawisil.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/asp._net_mvc_action_form.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/on_managing_yourself.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_off0000d822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD822 5148 bytes
SHA-256: 6380fd0c8e76591c81151aae584074360b1c1103f94f988780452e2785b22273
font_01_sfnt_off0000e994.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE994 9744 bytes
SHA-256: 938af50cb9780c5f0d083132ed2537efb4b90e322f32afbb53f47e96116e7719