Malicious PDF — malware analysis report

Static analysis result for SHA-256 74d2620165f2d817…

MALICIOUS

PDF

75.4 KB Created: 2021-01-26 17:04:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 3f816ac2124110b029acd9b583feae15 SHA-1: 27b563c4570d9bc1f6057a3eca14bd74050d459c SHA-256: 74d2620165f2d817ad9746fa6dbf0dfc1b3ec10766b3b017f962fcd24376cc40
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jottigo.ru/aws?utm_term=old+alarm+clock+sound+free PDF link annotation
    • https://cdn.sqhk.co/fotinegataso/ihhaibb/75189374926.pdfIn PDF document text
    • http://livecopyrightverification.com/9630430660457apu.pdfIn PDF document text
    • https://cdn.sqhk.co/sadirorig/MPDciaE/hair_salons_open_in_california_rules.pdfIn PDF document text
    • https://cdn.sqhk.co/bulunazi/fhbYjhb/murdergame_portable_mod_apk_1._0._8_download.pdfIn PDF document text
    • https://cdn.sqhk.co/wejagamewo/J7hfT4A/don_t_rush_lyrics_kelly_clarkson.pdfIn PDF document text
    • http://tiktokcopyrighthelpteam.com/watch_chain_reaction_movie_online_freegbjph.pdfIn PDF document text
    • http://regsenatvumen.website/heroic_fighter_research_timezvtwt.pdfIn PDF document text
    • http://yandex-dostav.ru/fall_guys_cross_platform_switch7t7oi.pdfIn PDF document text
    • https://rifuxegu.weebly.com/uploads/1/3/4/5/134525143/rorefobudademo.pdfIn PDF document text
    • https://cdn.sqhk.co/semiwewedazi/yjiw6hc/war_commander_wiki_destroyer.pdfIn PDF document text
    • http://mestorating.ru/epic_games_support_number3o71m.pdfIn PDF document text
    • https://cdn.sqhk.co/tategupet/b9jafgg/51816044187.pdfIn PDF document text
    • https://cdn.sqhk.co/wanukawuwota/hdVgfmr/supiwevalawizafadumapoxo.pdfIn PDF document text
    • https://dururamud.weebly.com/uploads/1/3/4/8/134846475/nemagowepigamiti.pdfIn PDF document text
    • https://cdn.sqhk.co/texojijoraso/iigdRaI/toca_boca_life_world_update.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000eaac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAAC 5256 bytes
SHA-256: f8293e7437b2447c8b424c52c8b88a02459631a1e945ba5f91e84872bc8504e0
font_01_sfnt_off0000fc76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC76 10640 bytes
SHA-256: 5037929e7ccc9df7c283c32702320a36cf3fcaf51f5a86f861a85fdb7e393ecd