Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fae7fa1661bc27b…

MALICIOUS

PDF

79.3 KB Created: 2021-03-02 13:33:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3f36fdc096a95c29c5a6534e9d06c845 SHA-1: 84ef02a8f71286e9c203e9a0524c68697731fd27 SHA-256: 5fae7fa1661bc27b38381de6e5db2ed123596f2a0ab02188f6274d0da328108a
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://seumenha.ru/aws?utm_term=how+to+pair+lg+sound+bar+to+xfinity+remote PDF link annotation
    • http://jujaxapuwuravof.iblogger.org/lagu_waktu_yang_salah_cover.pdfIn PDF document text
    • https://cdn.sqhk.co/gidenateg/94NiaYU/68649797042.pdfIn PDF document text
    • http://nogurufegu.mygamesonline.org/dd_3.5_mago_specialista.pdfIn PDF document text
    • http://vurenosul.22web.org/bundelkhand_university_online_form.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475853/normal_601d811a51cb2.pdfIn PDF document text
    • http://wumomotetidofe.getenjoyment.net/zisokisumojosejila.pdfIn PDF document text
    • http://repefokuxogefu.22web.org/gutanose.pdfIn PDF document text
    • http://riwotivadejud.sportsontheweb.net/jubutononuluzewov.pdfIn PDF document text
    • http://tulomodev.getenjoyment.net/it_jobs_nyc_entry_level.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379851/normal_601653c1efc71.pdfIn PDF document text
    • http://votilabelomebom.iblogger.org/pefilavovazufusunizolaroj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zixadadafupeg.epizy.com/85743686964.pdfIn PDF document text
    • http://kesexawes.rf.gd/dakabaf.pdfIn PDF document text
    • http://rokosarod.rf.gd/2018_tamil_calendar_free.pdfIn PDF document text
    • http://fiwemigusa.rf.gd/who_viewed_my_instagram_profile_apk_free.pdfIn PDF document text
    • http://rorujuzolu.epizy.com/70059723726.pdfIn PDF document text
    • http://pigutun.myartsonline.com/zovuvotegalerox.pdfIn PDF document text
    • http://rawigukegopafot.onlinewebshop.net/numexamanebodobepivuben.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_off0000f857.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF857 5724 bytes
SHA-256: 74a7a1e54a376b4aeb90a93d81a2a3c47cec9561e5211456cc9dd4e8a81d0e21
font_01_sfnt_off00010bd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BD3 10496 bytes
SHA-256: 2f3002d871fd3c8d2e915e871ae7a81645f2b17167a77b16caa577f028ee60c6