Malicious PDF — malware analysis report

Static analysis result for SHA-256 33f8510fca4243a6…

MALICIOUS

PDF

71.7 KB Created: 2021-02-21 11:02:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: cafc9fbf4a2872349619c27deba431f8 SHA-1: 98681deac0d239466913afab8e9f9a992b02b3f1 SHA-256: 33f8510fca4243a6d394c8d58ac0a05e048e3af99893e7615d1afa542d083416
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://maypoin.ru/wix?keyword=costume+design+template+child PDF link annotation
    • http://ig-mediateam.net/67116978571yur7x.pdfIn PDF document text
    • https://wisenuru.weebly.com/uploads/1/3/1/8/131856959/jobafisame_wukiv_pizapuxitalupa_xubonigofi.pdfIn PDF document text
    • http://gmetry.online/which_is_better_beats_studio_3_or_solo_pro0tu8z.pdfIn PDF document text
    • http://naturalgood.space/repiwifufcxst.pdfIn PDF document text
    • http://ligumiju.iblogger.org/aapka_picture_video.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378165/normal_6004dc0cb045a.pdfIn PDF document text
    • https://jimivisimobud.weebly.com/uploads/1/3/4/9/134901817/8679272.pdfIn PDF document text
    • https://ximapufem.weebly.com/uploads/1/3/1/4/131437784/8209457.pdfIn PDF document text
    • http://pexiwaz.iblogger.org/cockatiel_bird_care_sheet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413002/normal_5fd3792b8207e.pdfIn PDF document text
    • https://fejufawos.weebly.com/uploads/1/3/4/3/134328201/d80f58880e4c6c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406170/normal_602e552f526bd.pdfIn PDF document text
    • https://vavujajakakef.weebly.com/uploads/1/3/0/7/130740385/lufavixano.pdfIn PDF document text
    • http://swiss-family.space/jugukadorevevonujasaduklz22.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://buloderijapu.epizy.com/demelimu.pdfIn PDF document text
    • http://nozafawuronixe.epizy.com/kerio_vpn_client_android.pdfIn PDF document text
    • http://badivisixeg.epizy.com/mogamusagixodopepimisijes.pdfIn PDF document text
    • http://kixulal.rf.gd/lizatujaxabokatumoli.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_off0000dd6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD6C 5296 bytes
SHA-256: 3011caf8f9fb3d8b27b25c3d73520fc02308b63f21f4c72c6ddeb276719369ee
font_01_sfnt_off0000ef46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF46 10192 bytes
SHA-256: 1c060c82e6144bf32334a8c6a3b05aa44e78be1a022bcb35a8a0c6a3c874334b