Malicious PDF — malware analysis report

Static analysis result for SHA-256 bca17cf38c10732a…

MALICIOUS

PDF

71.6 KB Created: 2021-01-27 22:44:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d890c77f789d8a2d0ce81e57048e5cba SHA-1: 8944ea997eea19cbae3895368923db161bfbe3a6 SHA-256: bca17cf38c10732a0e4e5debb1e58709edfc5df29548082e7a4708534328bde0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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://jacksth.ru/wb?keyword=infectonator%20survivors%201.%201.%202%20trainer PDF link annotation
    • https://cdn.sqhk.co/sivujazozis/R1ph1dL/rakesujewuzaguxivofoduti.pdfIn PDF document text
    • http://gratoramaa.website/chip_and_dale_rescue_rangers_nes_manualc1ixw.pdfIn PDF document text
    • http://mmuuue.space/fox_racing_podium_gear_bagmz3kt.pdfIn PDF document text
    • http://faceit.su/85498741193354g6.pdfIn PDF document text
    • https://cdn.sqhk.co/zerurukoraju/VifehiS/pivisunerelujuwegur.pdfIn PDF document text
    • http://micrometer25bill.site/sandeep_maheshwari_new_videov1vaz.pdfIn PDF document text
    • http://rarebuzoxexovom.22web.org/basic_linux_shell_commands.pdfIn PDF document text
    • http://helpverifedbadges.com/bell_peppers_in_italian_cookingikqys.pdfIn PDF document text
    • http://beramomu.22web.org/tezate.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kugelilizibuwum/encyclopedia_judaica.pdfIn PDF document text
    • http://valapapiwusujeg.rf.gd/acoustics_of_buildings_physics.pdfIn PDF document text
    • http://luremugaxufarup.epizy.com/mobobeji.pdfIn PDF document text
    • http://fezefujeziged.epizy.com/hotel_transylvania_2_imdb_parents_guide.pdfIn PDF document text
    • http://xegiseko.epizy.com/smarter_goal_setting_worksheet.pdfIn PDF document text
    • http://zobovobewuw.epizy.com/45010754377.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_off0000db8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB8A 5056 bytes
SHA-256: 6d9095131a505f2ee5f8c90307a73e5b97533130510647d4f023020aae246ec6
font_01_sfnt_off0000ece2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECE2 10756 bytes
SHA-256: f1ca075a6dbae924e675292bd11eb0f307b6bb83f6bbd95566df129e2888409b