Malicious PDF — malware analysis report

Static analysis result for SHA-256 92f5995e3b1b21f0…

MALICIOUS

PDF

72.3 KB Created: 2021-03-04 05:44:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 232926898df2705176f6ab5ced64d534 SHA-1: 297529abefa5098ff5b102c31853dcab681834f5 SHA-256: 92f5995e3b1b21f01223ba711603fd84c2656980bc69b86e2665c5acf6b67e5d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://golowaki.ru/wix?keyword=westinghouse+standard+coca-cola+chest+cooler+parts PDF link annotation
    • https://wesoxuzepa.weebly.com/uploads/1/3/4/3/134372623/ca1561c7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488092/normal_5ff0624a382d7.pdfIn PDF document text
    • https://cdn.sqhk.co/sirepajaku/hnChs39/bizipubi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372985/normal_60133f3ce53e3.pdfIn PDF document text
    • https://cdn.sqhk.co/luwesefizi/djfitcq/best_2_player_games_playstation_now.pdfIn PDF document text
    • https://cdn.sqhk.co/kevovevude/XhdRNwF/sudikokopusemajezikala.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417315/normal_5feb73f3b05f1.pdfIn PDF document text
    • https://nedotumawu.weebly.com/uploads/1/3/4/6/134626041/4016262.pdfIn PDF document text
    • https://tupokigefadewun.weebly.com/uploads/1/3/4/7/134702618/tisajasulalu.pdfIn PDF document text
    • https://cdn.sqhk.co/tivuzofep/LRgdigA/wejudemaf.pdfIn PDF document text
    • https://cdn.sqhk.co/fekawitaxug/gdjdigw/rorupepepe.pdfIn PDF document text
    • https://pebezudaxefen.weebly.com/uploads/1/3/4/3/134347708/0db7aef6f49.pdfIn PDF document text
    • http://gejudoxe.mypressonline.com/2000_honda_accord_ex_maintenance_required_light.pdfIn PDF document text
    • https://cdn.sqhk.co/rolileduvof/zMvhjM2/royal_caribbean_international_freedom_class_ships.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/liwafo/balance_sheet_format_companies_act_2013.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/80903359852.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/octane_and_cetane_number.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/niwekapipedoxutawejez.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d091.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD091 5260 bytes
SHA-256: 7c5695cde3a24ee82903fa33828f08f2cd99fa710c5f30c3db87c9c5d9e66c23
font_01_sfnt_off0000e27c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE27C 10276 bytes
SHA-256: 8b6489de04950062049af13c642afa3f4b67c85a891db150d3ba8bde389409e9
font_02_sfnt_off0001059d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1059D 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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