Malicious PDF — malware analysis report

Static analysis result for SHA-256 576ef02b3aab098f…

MALICIOUS

PDF

81.5 KB Created: 2021-02-12 03:59:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d76473d7ae74d834f2f98a3dbb8b1f95 SHA-1: 8d9632c2e7fdd882916f48f08facc7727af91edd SHA-256: 576ef02b3aab098fc3fa5e708949579622a3d713975cb058fccf09d1cfa21075
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://jacksth.ru/wb?keyword=macromolecules%20in%20my%20food%20info%20sheet%20answers PDF link annotation
    • http://austritkfa.com/7895135771187nnm.pdfIn PDF document text
    • http://proba7.xyz/rent_agreement_cancellation_letter_formatq7y5h.pdfIn PDF document text
    • http://detonic-deutschland.website/39101167621nst7r.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417530/normal_60242439e9fb9.pdfIn PDF document text
    • http://fit-italy.space/bidavixeguguriqw0w4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450883/normal_602253b329b66.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383579/normal_5ff19aa79f247.pdfIn PDF document text
    • http://gravkamen.ru/the_maxwell_group_sun_city_arizona2p4cj.pdfIn PDF document text
    • http://wekawuro.22web.org/foxisexunofajuf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446784/normal_5fdefabe3ec30.pdfIn PDF document text
    • http://naturfresh.fun/netflix_login_change_passwordqdpxp.pdfIn PDF document text
    • http://scm03.ru/charles_duhigg_the_power_of_habitguyt4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://debubiduselez.epizy.com/60068226056.pdfIn PDF document text
    • http://poxemibusap.epizy.com/s_letter_pictures_free.pdfIn PDF document text
    • http://meluxowuxepos.rf.gd/black_panther_movie_font_free.pdfIn PDF document text
    • http://jasigobup.epizy.com/asset_management_value_chain.pdfIn PDF document text
    • http://mefomoximene.rf.gd/allah_name_images.pdfIn PDF document text
    • http://fuzaxovojige.epizy.com/zezatozek.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_off0000fee1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEE1 5460 bytes
SHA-256: 1670f1881a053dc61790b5a51444494d394a4e9ecd89b3b72572de1001af5508
font_01_sfnt_off0001116a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1116A 11656 bytes
SHA-256: 63c0a904e0aeefd6ed21d94a029bce5c5690050b4f26ccbaa268ba54989786dc