Malicious PDF — malware analysis report

Static analysis result for SHA-256 432ae9d8f40f69e5…

MALICIOUS

PDF

68.4 KB Created: 2021-02-26 15:12:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 413ea876f831b46c50b2855ec9ee30b1 SHA-1: 5fafc213258e3c25bee8710af610252b3e28ed3b SHA-256: 432ae9d8f40f69e5204cbcb9de4e67ed707d0418cf19a28944b9d2cf328e0fc7
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://kuzutuzo.ru/wix?keyword=plot+diagram+for+thank+you+ma%2527am PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4381091/normal_600680aa8d152.pdfIn PDF document text
    • http://rabusog.22web.org/27505775881.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485454/normal_5fe9b9c3e93ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393635/normal_603219cb35d53.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451970/normal_602f3c14641ea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488807/normal_5fd0914d7f5b4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477400/normal_6000004526f05.pdfIn PDF document text
    • http://fukazab.mywebcommunity.org/45856239243.pdfIn PDF document text
    • http://xuxetosufuzo.getenjoyment.net/44875986180.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481418/normal_601a22fa76f4e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447669/normal_5ff87287e1b8b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486772/normal_6023f6c7335cf.pdfIn PDF document text
    • http://welivopujaku.iblogger.org/vajuve.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485587/normal_600eae6059463.pdfIn PDF document text
    • http://wuderiwewilew.22web.org/nosufamiridapol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393188/normal_601197c6dd05b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://basemamexirenaw.epizy.com/jessabelle_imdb_parents_guide.pdfIn PDF document text
    • http://sidogin.epizy.com/89070507969.pdfIn PDF document text
    • http://gefexusutem.epizy.com/construction_company_balance_sheet.pdfIn PDF document text
    • http://zosuwowatapaji.rf.gd/windows_server_2012_r2_update_notification_on_login_splash_screen.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_off0000cf7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF7D 5344 bytes
SHA-256: a427a2c4878118246eccaef22207d4dce3422a26ced2d13a8dc9e821ce70a130
font_01_sfnt_off0000e190.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE190 10148 bytes
SHA-256: 90687124d81dd7161a5772e91cd41e4c5903b4244280b1e46f7627ff4d1f034c