Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f4259779c987377…

MALICIOUS

PDF

72.3 KB Created: 2021-02-27 12:45:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 63dd8b6bda32f3d4ab1518634a531831 SHA-1: eb4b54832bfe85d57ceb9e0b101473683b73ba28 SHA-256: 7f4259779c987377d8e5aee682fea0bf2eaad3228f8c210b60e2daa032a44488
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=what+are+the+interior+colors+for+2020 PDF link annotation
    • https://cdn.sqhk.co/noneniwetav/eihjcnv/juveligaruxoj.pdfIn PDF document text
    • http://bettermoneytips.com/biome_climatogram_worksheet_answersxiiky.pdfIn PDF document text
    • http://sonunevojipu.iblogger.org/temumitagujoze.pdfIn PDF document text
    • http://betmoy54.com/the_solar_system_assignment_quizletlefyb.pdfIn PDF document text
    • https://cdn.sqhk.co/goluxewimabu/TMvCDLo/bewafiv.pdfIn PDF document text
    • https://cdn.sqhk.co/tipadasa/npkiagy/summer_capsule_wardrobe_examples.pdfIn PDF document text
    • https://cdn.sqhk.co/jipodipotaj/nhc2uLz/detox_water_recipes_to_lose_belly_fat.pdfIn PDF document text
    • http://probnik1313.tech/madden_mobile_hack_no_surveyqy3vf.pdfIn PDF document text
    • https://cdn.sqhk.co/vikoparif/iaZhejc/waxoxibef.pdfIn PDF document text
    • http://beautysss.site/the_tiger_king_cast_where_are_they_nowl79fn.pdfIn PDF document text
    • http://micrometerdigital.xyz/jadodifarotijemixin0rlh.pdfIn PDF document text
    • https://cdn.sqhk.co/pigexebobe/FLQjiif/71038061850.pdfIn PDF document text
    • http://datingdate.site/java_jdk_32_bit_windows_8._1q9gep.pdfIn PDF document text
    • http://denizan.com/melurebuxawoasllc.pdfIn PDF document text
    • http://levantegroup.net/2012_chevy_impala_ls_manual00cwn.pdfIn PDF document text
    • http://blacktea.space/zao_shang_hao_ni_meaningz8og6.pdfIn PDF document text
    • https://cdn.sqhk.co/tororukiwuri/gjifRge/roxafebibamobolokevimop.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tipunif.epizy.com/site_analysis_report_structure.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_off0000dfc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFC0 5256 bytes
SHA-256: 0d9b5057a62ddb086ba08a19bd79871651c72715da4aeef8ddf56c55af24f474
font_01_sfnt_off0000f1a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A8 10028 bytes
SHA-256: af2524cce75a8c3feec4096d87a9c29012052b1b3784b5fda9ed061d0a1e7989