Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a04a0090cbe852c…

MALICIOUS

PDF

68.2 KB Created: 2021-02-18 02:48:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 611e7f52c60c691116f9c89f1ee48021 SHA-1: 2bdd70d7e47a40bd2658ab7e1c8f078ff3cc3a4a SHA-256: 6a04a0090cbe852c07e5a9668486853681b940c1063801d0df3d6632d790680a
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=max+go+apk+download PDF link annotation
    • https://cdn.sqhk.co/fexilejedit/bjbbgdh/ebay_gift_card_uk_asda.pdfIn PDF document text
    • http://sentytld.online/5991922469ia0vr.pdfIn PDF document text
    • http://cupe1.ru/fun_easy_pumpkin_carving_templatess5vl9.pdfIn PDF document text
    • http://qwonder.space/lanonumititarovusedajgoazc.pdfIn PDF document text
    • https://cdn.sqhk.co/gujuvizaja/s5jdEgf/sifuzaxi.pdfIn PDF document text
    • http://igcopyrightforhelps.com/weather_report_pune_satellite_image9q2hs.pdfIn PDF document text
    • http://help-copyrighteamservice.com/dragon_quest_11_sunny_citrinevicq7.pdfIn PDF document text
    • http://osthondroz.com/best_naval_games_pc_2019csyw9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369664/normal_601dfd09e6446.pdfIn PDF document text
    • http://ctyr.ru/carel_ir33_manual676wb.pdfIn PDF document text
    • https://cdn.sqhk.co/xexodaxafu/hjciiFq/wusimomuzewasuxijizugug.pdfIn PDF document text
    • http://stassikorskyi.com/3480256475gf8ux.pdfIn PDF document text
    • http://winsl.space/catchmaster_glue_traps_reviewut6rx.pdfIn PDF document text
    • https://cdn.sqhk.co/posukomokufi/YPgiiYq/zombie_shooter_zombie_io_mod_apk_revdl.pdfIn PDF document text
    • https://cdn.sqhk.co/naxupowu/PHthaeV/mine_legend_idle_miner_game_download.pdfIn PDF document text
    • http://remontvorot24.com/infinite_stratos_2_torrent2yz4b.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_off0000cc64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC64 5084 bytes
SHA-256: 2672a9b219c87c62575a97da0c1a15f039bba887ce5f9e42b69a47db482052cb
font_01_sfnt_off0000dded.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDED 11260 bytes
SHA-256: f43951fe4ddbfe322bb8d5b75768fb52dcba5a5c6bf98501d6d1e32df1478fde