Malicious PDF — malware analysis report

Static analysis result for SHA-256 866b8187dcbff3c7…

MALICIOUS

PDF

75.6 KB Created: 2021-01-31 12:33:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: c89c4cd5cc1c1c1c472c455b79a61679 SHA-1: c66dbde70aa1507c9f25c3bee41f6029a1791cab SHA-256: 866b8187dcbff3c71749852e72413d8248ba554dc29a9416e088f7a68c729937
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://bologen.ru/123?utm_term=german+battleship+tirpitz+knife PDF link annotation
    • http://livecopyrightverification.com/leap_of_faith_definedw92o6.pdfIn PDF document text
    • https://cdn.sqhk.co/tinipuded/fOhjwji/99017154958.pdfIn PDF document text
    • https://cdn.sqhk.co/duzemata/gdUhihi/revazaxenixomatesawod.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwifemi/86jgKii/russian_car_driver_zil_130_cheats.pdfIn PDF document text
    • https://cdn.sqhk.co/xogutozo/jc21gij/novutew.pdfIn PDF document text
    • https://cdn.sqhk.co/sabepakofo/jj9ifjf/airport_madness_3d_volume_2_download_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/sawowudin/djjgg3q/14795432599.pdfIn PDF document text
    • http://autoupgrade.website/79517537541kjhpe.pdfIn PDF document text
    • http://igme.site/play_game_earn_money_app_downloadmwnn1.pdfIn PDF document text
    • http://palitra-cveta.ru/carnegie_learning_answers_geometry6mvkb.pdfIn PDF document text
    • https://cdn.sqhk.co/labifikup/zgdib00/fawalepilem.pdfIn PDF document text
    • http://rabatil.22web.org/julejebisiwenu.pdfIn PDF document text
    • https://cdn.sqhk.co/fozuwasixeja/gImpicE/word_search_pro_answers_garden_essentials.pdfIn PDF document text
    • https://cdn.sqhk.co/pifonode/KNEughM/little_pony_unicorn_names.pdfIn PDF document text
    • http://mscredit.info/dikudamikimixananiduvarc4wz8.pdfIn PDF document text
    • http://miiliioner.xyz/bigemiftkr1.pdfIn PDF document text
    • https://cdn.sqhk.co/fofodafexadu/ia5EMsj/lebara_mobile_internet_code.pdfIn PDF document text
    • https://cdn.sqhk.co/novozefox/5xhbiez/kabevejavokod.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_off0000e788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE788 5424 bytes
SHA-256: fd15f2dccbfdd9f4ec4510c1ab54ef7c96f3f8bd43b44e2643ad7cf4af87b885
font_01_sfnt_off0000f9d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9D1 11960 bytes
SHA-256: bdf2e62e664775376f1b75e6ab67b1104a02c535e6dbf0fdcd368df32c21ac1b