Malicious PDF — malware analysis report

Static analysis result for SHA-256 f33dc14333991c88…

MALICIOUS

PDF

68.0 KB Created: 2021-02-25 21:19:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7566d6f7dac9087c3f0f38d0e7b413e3 SHA-1: 4f8bca8aec6eaa7b590d60abc40fb7fa3941fa2f SHA-256: f33dc14333991c887a3b59e0753e91186dbbd5e245850e0d5f447d8e05441579
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://druttle.ru/award?keyword=how+to+troubleshoot+remote+start PDF link annotation
    • http://salonvarna.com/nordictrack_exp_1000_repair3bo7i.pdfIn PDF document text
    • https://vipomumukewa.weebly.com/uploads/1/3/0/8/130813786/zumidotuxisafo_polar_zokijixapaworas.pdfIn PDF document text
    • https://guxuxexor.weebly.com/uploads/1/3/0/7/130775085/wexoj.pdfIn PDF document text
    • http://hisgohar.site/how_to_connect_pioneer_bluetooth_headphones_to_phonedmfwa.pdfIn PDF document text
    • http://retesopi.iblogger.org/figoluxowojununumowefit.pdfIn PDF document text
    • http://tedamowajowiw.22web.org/gokejenuxu.pdfIn PDF document text
    • http://ronifibofizet.medianewsonline.com/31813106072.pdfIn PDF document text
    • http://zumubexupon.22web.org/cheat_engine_6._8._3_apk.pdfIn PDF document text
    • https://namovanuzo.weebly.com/uploads/1/3/1/6/131606642/3f35b62468a6bdf.pdfIn PDF document text
    • http://lumobumekola.getenjoyment.net/should_internet_be_capitalized.pdfIn PDF document text
    • http://form-lnstagramcopyrightservice.com/super_bomberman_5_snes_cheat_codesdpat3.pdfIn PDF document text
    • http://pufufabimego.iblogger.org/acls_protocol_cheat_sheet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rojikigekon.epizy.com/broken_heart_touching_status_video.pdfIn PDF document text
    • http://suwiwomuve.rf.gd/body_ritual_among_the_nacirema_audio.pdfIn PDF document text
    • http://repafow.epizy.com/django_rest_template_does_not_exist.pdfIn PDF document text
    • http://fubavinexazixo.onlinewebshop.net/buripadolezazava.pdfIn PDF document text
    • http://moxowofabijis.epizy.com/84730083989.pdfIn PDF document text
    • http://vatasinunevuto.epizy.com/kukomenoverivonigegato.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_off0000cf52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF52 5120 bytes
SHA-256: 527997bd4b33f6d18f55356a26c59904248f1ee7e0e2e44a64268ccd5d5b7d00
font_01_sfnt_off0000e096.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE096 10068 bytes
SHA-256: 65c85405b9c3aec8f02e144af81200257561392b812fa8f26a449ed86b6181a5