Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c422c8ba4217092…

MALICIOUS

PDF

70.2 KB Created: 2021-02-06 16:10:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 3c08dc62a3ca976f6ba16b54ff70ead2 SHA-1: 3832fff173a9393d2a2f1d2483528f27a5114dda SHA-256: 0c422c8ba42170927f5e5f56cb0dd7a0993e42fcd7e996f703f0cc96417a58d5
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://druttle.ru/aws?utm_term=voltage+transformer+single+line+diagram PDF link annotation
    • https://cdn.sqhk.co/befozaxulot/hgeh7sJ/rush_copley_medical_center.pdfIn PDF document text
    • http://bobiruropiles.22web.org/bayesian_population_analysis_using_winbugs.pdfIn PDF document text
    • http://ninudogexefeg.22web.org/pufaruduxoderifozuzela.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476140/normal_5feb2077d2f52.pdfIn PDF document text
    • http://lukegerit.22web.org/toruzosinunomige.pdfIn PDF document text
    • http://gasokab.iblogger.org/enhanced_due_diligence_checklist_template.pdfIn PDF document text
    • https://cdn.sqhk.co/jumupebuvi/ijidPCs/tukegiramagixivo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jukezeluf/honda_city_android_auto_india.pdfIn PDF document text
    • http://latosenepodukum.rf.gd/wiletenexufekesa.pdfIn PDF document text
    • https://s3.amazonaws.com/zunewidimem/18786322280.pdfIn PDF document text
    • http://bevamixebigal.epizy.com/95166959980.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/today_weather_report_of_dunedin.pdfIn PDF document text
    • http://xilibosukotijob.epizy.com/stay_rihanna_piano_sheet_music.pdfIn PDF document text
    • http://fiwewenupod.epizy.com/zhiyun_smooth_4_manual_focus.pdfIn PDF document text
    • http://zatojigetafugud.epizy.com/7th_unit_9_environment_vocabulary_worksheet_cevaplar.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_off0000d33d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD33D 5192 bytes
SHA-256: ffbd076ef61d02323f799bcd7775475756f350d227d84849daaaa0057a8efc9b
font_01_sfnt_off0000e4d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D7 10976 bytes
SHA-256: ddfa906b556f97d7682733354c6db85178e7397f21e92ca5de8741f3498e10fc