Malicious PDF — malware analysis report

Static analysis result for SHA-256 720ffe6569f377b9…

MALICIOUS

PDF

61.5 KB Created: 2021-02-12 04:48:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f6be3a1c89675addb5e0189485edce78 SHA-1: 1b06bd4734419337471540e76f8e442bc6c61bdd SHA-256: 720ffe6569f377b96dd2769a3d2a088d374e51cf7ee6415d50d8709b3253f6d2
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://leonvi.ru/wb?keyword=burn%20the%20stage%20ep%203 PDF link annotation
    • https://vepenisa.weebly.com/uploads/1/3/4/3/134339982/3772009.pdfIn PDF document text
    • https://rezisepadas.weebly.com/uploads/1/3/4/2/134235668/45cb0d.pdfIn PDF document text
    • http://copyright-help-center.com/pimozekuzikakowcj13.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370063/normal_6007d0a0470bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463264/normal_601d25a812be2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387814/normal_5fdb2a373f6f4.pdfIn PDF document text
    • http://dlkmvkoenv.info/29308989189oi4he.pdfIn PDF document text
    • https://dubasebajulux.weebly.com/uploads/1/3/1/3/131382081/1005267.pdfIn PDF document text
    • http://job-finder.space/907810056105xgt8.pdfIn PDF document text
    • http://zedanipon.iblogger.org/dasaxizajaz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411498/normal_5fcdc8ae63a03.pdfIn PDF document text
    • http://xugafigipi.22web.org/92379155591.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412890/normal_5ffe8f99ea639.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451205/normal_5ffc11f117476.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wixudilasajigil.rf.gd/free_theater_resume_template.pdfIn PDF document text
    • http://parolodase.epizy.com/59482889197.pdfIn PDF document text
    • http://golunelew.epizy.com/92797089796.pdfIn PDF document text
    • http://ruxofepugoloma.rf.gd/browser_mini_terbaik_untuk_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_off0000b895.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB895 5260 bytes
SHA-256: a60d67d300afa3cfc8d2aca8475de3fb54315aa23f03cb2018ce791f43c90c8e
font_01_sfnt_off0000ca79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA79 9096 bytes
SHA-256: 79f183d59af5b67ec4612c21cf8126cfb8c192b15b7adfba19045596474fc047