Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7344d6aa8b11aaf…

MALICIOUS

PDF

77.3 KB Created: 2021-03-01 09:01:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 52a43e1c620520d71b4c70c98a36b590 SHA-1: 5aaf078b185c09c815ced1414f9dbc0ca9dc400c SHA-256: d7344d6aa8b11aafe352e34463ec6cae496289ae0f270fc27092daecfb9a99a2
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://fokemale.ru/wb?keyword=how%20to%20fix%20my%20riding%20lawn%20mower PDF link annotation
    • http://wejowadizabudex.mypressonline.com/10144122304.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409244/normal_600ff1bb84584.pdfIn PDF document text
    • http://libuwapuvewipev.mywebcommunity.org/writing_activities_for_middle_school_students.pdfIn PDF document text
    • http://pofuxubilet.sportsontheweb.net/karozelapevepen.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428035/normal_5fdeda805d290.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379231/normal_60289f511c9be.pdfIn PDF document text
    • https://zexonozanefamiw.weebly.com/uploads/1/3/1/1/131163740/noralufoka.pdfIn PDF document text
    • https://zuwuloju.weebly.com/uploads/1/3/2/6/132681456/nevoraxedado.pdfIn PDF document text
    • https://gusumumonabol.weebly.com/uploads/1/3/0/7/130775475/4183534.pdfIn PDF document text
    • http://loduwij.scienceontheweb.net/what_is_cof2_polar_or_nonpolar.pdfIn PDF document text
    • https://magivuvesef.weebly.com/uploads/1/3/0/7/130775451/01503e9c12b5c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369643/normal_602753bfec2b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471703/normal_601070998510a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446377/normal_6009ecd2ef707.pdfIn PDF document text
    • http://dilawiputonu.mypressonline.com/94062494918.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ketabigumowun.atwebpages.com/zavepikil.pdfIn PDF document text
    • http://wugujub.onlinewebshop.net/drug_information_handbook_2021.pdfIn PDF document text
    • http://nojikigor.myartsonline.com/sipapibororudesetobaris.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_off0000f265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF265 5272 bytes
SHA-256: aa2234d6e232872d730d79561d1c8730ceae3c0d857ea9c02af145789db8c246
font_01_sfnt_off0001045b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1045B 10504 bytes
SHA-256: ebeb0f3a345abd28994d36a57f211b14074aa7f5c1066f26ba5cbf14d07b223a