Malicious PDF — malware analysis report

Static analysis result for SHA-256 84447bda3cc0143b…

MALICIOUS

PDF

71.3 KB Created: 2021-02-09 02:52:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 504718856f05fb4d02d4f19b23705743 SHA-1: 7ad90c502c7c4280deb7685e7e2428246c87116d SHA-256: 84447bda3cc0143b545d1b8a90ba8b1b2d8007e2ddb74a71af8a39eb0a7882af
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://seumenha.ru/wb?keyword=aeroponics%20farming%20pdf PDF link annotation
    • https://cdn.sqhk.co/vojofarakiva/1VZghhb/trending_hashtags_today_twitter_uk.pdfIn PDF document text
    • http://wubopabezijoso.22web.org/78133026456.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393208/normal_60076e1a73f9d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467278/normal_5fc67a10bef29.pdfIn PDF document text
    • http://megesodore.iblogger.org/cancer_de_mama_sinais_e_sintomas.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470035/normal_6000b26856931.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383467/normal_5fdc8aaaeddce.pdfIn PDF document text
    • http://getliterate.online/57332569384uuaxe.pdfIn PDF document text
    • http://cesaregaspari.com/touchstone_3_workbook_answer_key_unib8kz8.pdfIn PDF document text
    • https://cdn.sqhk.co/nemuvefik/iaXwOSL/tap_knife_game.pdfIn PDF document text
    • http://xatojefewimer.iblogger.org/clause_worksheet_for_grade_8.pdfIn PDF document text
    • http://idealicacolumbia.site/adobe_acrobat_freeware_for_windows_7eb2ot.pdfIn PDF document text
    • https://cdn.sqhk.co/jotenitix/g5zvFgf/my_movie_projector_review.pdfIn PDF document text
    • http://excellent-spb.ru/hp_compaq_552us_bios_update_downloadvxlr6.pdfIn PDF document text
    • https://cdn.sqhk.co/rawerusiwala/2ggRCid/steam_games_free_to_keep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nidikofuwovi.rf.gd/52944064000.pdfIn PDF document text
    • http://numubujekan.rf.gd/netflix_pc_location.pdfIn PDF document text
    • http://xodupope.epizy.com/ganowekaneduzakoru.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_off0000d99e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD99E 5432 bytes
SHA-256: 16c95d0bbc19eace4a2fa9b9697af16dbd591bcdde3f0a638a2206aa30cb352e
font_01_sfnt_off0000ec03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC03 10628 bytes
SHA-256: 52df65b79a0cc5b0777d00b5aef52c1afeb9c04ac2c692144a55743e37ab1d59