Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c3308d6be2160e7…

MALICIOUS

PDF

74.9 KB Created: 2021-03-01 18:25:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 2882bb8f5af321387f25239c30228961 SHA-1: 48a380a0c850a5dc9862bdf07b96e77d88f922ca SHA-256: 0c3308d6be2160e7a4f16fe91c1cef50da2b0a6af71a3ea6f595ef4718970470
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://resalured.ru/wix?keyword=kingroot+4.4+2+apk PDF link annotation
    • https://cdn.sqhk.co/tinajugezepi/ije2dhh/block_hexa_puzzle_download.pdfIn PDF document text
    • https://cdn.sqhk.co/gotirawuz/geqZzia/71110723354.pdfIn PDF document text
    • http://idealicaitalia.website/67813730720dljgi.pdfIn PDF document text
    • http://piwofoterif.sportsontheweb.net/lojulozoda.pdfIn PDF document text
    • https://cdn.sqhk.co/tigixexaxi/6IJTcij/16716998814.pdfIn PDF document text
    • https://cdn.sqhk.co/tavanaru/hbicDqW/sandwich_shoppe_vidalia_ga.pdfIn PDF document text
    • https://cdn.sqhk.co/loxinesupiva/jg2ghKM/hamster_rescue_nj.pdfIn PDF document text
    • http://lomuwugevona.getenjoyment.net/nixon_51-30_chrono_all_gunmetal.pdfIn PDF document text
    • http://nemosixumeki.mypressonline.com/2008_dodge_grand_caravan_table_for_sale.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494677/normal_60151286018ec.pdfIn PDF document text
    • http://logoped-samara.ru/1963992507038dwn.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/7s2IE8M/82323396555.pdfIn PDF document text
    • http://mobeditobaxul.scienceontheweb.net/61661133011.pdfIn PDF document text
    • https://cdn.sqhk.co/fokapalo/heqhijc/zovuvoniferipotapabaneme.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/7EXjkbN/accounting_bookkeeping_invoice_expense_inventory.pdfIn PDF document text
    • https://cdn.sqhk.co/zoxinugokas/hibgejb/2nd_hand_clothes_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/vadetegubufo/4iibifO/ralilutukagu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gevejonitu.onlinewebshop.net/elgato_hd60_s_capture_card_setup.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_off0000eaf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF4 5064 bytes
SHA-256: 6298354dc35482c700a993a0c9c5307830700f5f006f07d0f1af8c0e6059b154
font_01_sfnt_off0000fc55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC55 10104 bytes
SHA-256: 7f8a9a66d39b2f1d7a6cea4c0b51a68891637be5a1fc70f4cb71409a38abc35b