Malicious PDF — malware analysis report

Static analysis result for SHA-256 3232c11ab9044d62…

MALICIOUS

PDF

68.9 KB Created: 2021-02-09 14:47:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 01f846b2caf944445f9a5003b1c7da7c SHA-1: 0797499dfe63d1af2ac267f1f09a299758f2f250 SHA-256: 3232c11ab9044d62769fec8083ebb9571692e4a72a9859333310e9e92cd3b748
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/wb?keyword=journal%20bearing%20ppt PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380694/normal_5fe6b251ab203.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445534/normal_5ffd98ba29a4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409411/normal_5fe972ed0cc6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367308/normal_5fdb714c76248.pdfIn PDF document text
    • https://bukajovogasis.weebly.com/uploads/1/3/4/3/134340533/7785fbfc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386089/normal_60141fd3c8379.pdfIn PDF document text
    • http://kekukuxowan.22web.org/lumley_junior_school_ofsted_report.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jezirateba.rf.gd/zunarab.pdfIn PDF document text
    • http://vikipabolukizi.rf.gd/halestorm_i_am_the_fire_sheet_music.pdfIn PDF document text
    • http://bejewidokani.rf.gd/kodaline_the_one_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/farokof/multiplication_with_decimal_points_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/requisition_template_word.pdfIn PDF document text
    • https://s3.amazonaws.com/pubopelej/50787000393.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/felaborejevagave.pdfIn PDF document text
    • http://venewimo.rf.gd/27795842164.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_off0000cec6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEC6 4940 bytes
SHA-256: d9cc956e0e62fc1ee6e1485287673f9a54605563b578d0007b59b5eb7606b741
font_01_sfnt_off0000dfa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFA2 11888 bytes
SHA-256: 06d89aac4661389106a3d96a0260aad637f3f4d2c12fbf2af8f574ec321cf45f