Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bd381263b59565b…

MALICIOUS

PDF

71.7 KB Created: 2021-02-24 18:12:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 2f59fb8965f75a4959cb6ee5f73567b7 SHA-1: 431dd00e76a303487836bfc2a0153ebaa8fdd1f4 SHA-256: 6bd381263b59565bf58ac38f78c2e3f0d1f41fc877b590c5f69d29c3e4ae3c85
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://maypoin.ru/award?keyword=the+lightning+thief+chapter+10+questions PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4406454/normal_5ffd99bb80398.pdfIn PDF document text
    • http://narelavupes.22web.org/34592104832.pdfIn PDF document text
    • https://gutavavoz.weebly.com/uploads/1/3/4/0/134000423/febutafibem.pdfIn PDF document text
    • http://rasezatoxefu.mygamesonline.org/zogununiromawupubulugen.pdfIn PDF document text
    • http://maddot.space/coulombic_attraction_pogil_answerspdm2n.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374978/normal_5fe24e44ab6ef.pdfIn PDF document text
    • http://lamakexo.scienceontheweb.net/79103728891.pdfIn PDF document text
    • http://cardioactiveitalia.site/hero_jump_gameho7v5.pdfIn PDF document text
    • http://axecheat1.xyz/50975493394xcgbt.pdfIn PDF document text
    • http://help-ruleviolation.com/wagazupuk27n0g.pdfIn PDF document text
    • http://nawilojobate.iblogger.org/application_for_business_loan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403259/normal_5fd700059f82c.pdfIn PDF document text
    • http://lenuvivureropi.scienceontheweb.net/garmin_vivofit_3_reset_after_battery_replacement.pdfIn PDF document text
    • http://rocketdocs.us/vampire_diaries_books_collectiontufvx.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wugujub.onlinewebshop.net/15856441667.pdfIn PDF document text
    • http://mexexumekevuk.rf.gd/33049935053.pdfIn PDF document text
    • http://petojijoxura.onlinewebshop.net/spring_framework_guru_swagger.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_off0000dc7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC7E 5548 bytes
SHA-256: 98a77012a30290c8aff60696fcbbcd9c82fdc6bafc54802d5ebe8deaf847cce3
font_01_sfnt_off0000ef65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF65 10004 bytes
SHA-256: 994063db4c14a9a146478b635076a0dc82da7e6c12b44ede0aaf9842202458a0