Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd8c1d3dd2250242…

MALICIOUS

PDF

75.0 KB Created: 2021-02-20 14:45:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f66ec4eb011fcd829d33af7d552a9032 SHA-1: 8513c555fb775a98be6a6327b36ca29625c789f6 SHA-256: fd8c1d3dd22502422440138f06752156c838b10dd4b148162c460bfcc3604656
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://baarspo.ru/wb?keyword=do%20oil%20filled%20radiators%20give%20off%20fumes PDF link annotation
    • http://copyrightprivacy.site/c_m_o_s_ka_full_formf88jp.pdfIn PDF document text
    • http://kidepokapila.22web.org/ccleaner_completo_crackeado.pdfIn PDF document text
    • http://kifikawi.66ghz.com/nurodotewiweberav.pdfIn PDF document text
    • http://pixell.store/delevibogocs97w.pdfIn PDF document text
    • https://cdn.sqhk.co/takejirasomu/gegdhhZ/9049804551.pdfIn PDF document text
    • http://marketes.pro/technics_sl-d212_dust_coveriddvi.pdfIn PDF document text
    • http://lnstagram-help-businesss.com/23984707954vxppk.pdfIn PDF document text
    • http://wevibakudibu.iblogger.org/gmail_signature_design_template.pdfIn PDF document text
    • https://cdn.sqhk.co/pidodalatip/Ribjegf/vajolazuriziposoguzaluw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nujidurib.rf.gd/aye_khuku_aye_audio_song.pdfIn PDF document text
    • http://tagitefidunun.epizy.com/wijuxibetefo.pdfIn PDF document text
    • http://lopumupukerodu.epizy.com/vegetable_spring_rolls_nutrition_information.pdfIn PDF document text
    • http://gelulunex.epizy.com/4281545806.pdfIn PDF document text
    • https://s3.amazonaws.com/bitajemisajoz/xojedugipaxuzof.pdfIn PDF document text
    • http://fizenigapajawak.epizy.com/alcohol_guidelines_pregnancy_uk.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_off0000e8a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A5 5284 bytes
SHA-256: 383848fc369ea86ac88a7ae5142af7faf0bc21a182cb633e331a186f8c28047e
font_01_sfnt_off0000fa9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA9A 10728 bytes
SHA-256: 8fb5c5b105dc86ae95098a2d800b746a0df03804b528478263a379863fc50025