Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a994eb5ab6e0a28…

MALICIOUS

PDF

71.6 KB Created: 2021-03-02 20:53:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 38e4aca1a770557446403a242862ed02 SHA-1: 765bd95c929d955c72a957eb1f3eae1f5a6f4376 SHA-256: 4a994eb5ab6e0a28da3d0a3b122820cb0679cc44705530816ea75b8bb88520d7
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/award?keyword=how+to+replace+ink+cartridge+canon+pixma+mg2220 PDF link annotation
    • https://cdn.sqhk.co/maxanogefo/2wH00hi/xaxamurap.pdfIn PDF document text
    • http://nemosixumeki.mypressonline.com/alto_shaam_halo_heat.pdfIn PDF document text
    • http://fogozuvonuw.66ghz.com/shirt_sewing_tutorial.pdfIn PDF document text
    • https://cdn.sqhk.co/zapiseniw/idYTCgg/necromancy_term_origin.pdfIn PDF document text
    • https://cdn.sqhk.co/narulaloro/Tal4eO3/fire_baby_adventure_2004.pdfIn PDF document text
    • http://dufifudusimube.mygamesonline.org/92138234101.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464863/normal_5fcd9eb147b55.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383925/normal_5fd610c58ee83.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vukunazovi.rf.gd/body_builder_photo_editor_app.pdfIn PDF document text
    • http://bavatesivo.myartsonline.com/what_is_family_sociology_perspective.pdfIn PDF document text
    • http://duwemanuwixam.atwebpages.com/60315837296.pdfIn PDF document text
    • http://setekavapitefe.rf.gd/free_printable_disney_sheet_music_flute.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/buwevanuz.pdfIn PDF document text
    • https://s3.amazonaws.com/gasodamuza/canada_tourist_map.pdfIn PDF document text
    • http://pevogikuxupeja.onlinewebshop.net/can_you_cook_fish_fingers_on_a_george_foreman_grill.pdfIn PDF document text
    • http://relipig.epizy.com/percy_jackson_2.pdfIn PDF document text
    • https://s3.amazonaws.com/figidireki/is_a_vizio_smart_tv_bluetooth_compatible.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_off0000db9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB9D 5672 bytes
SHA-256: 4848e560e83826bedd5aa0b69d50c698a5c5aec939564a297beba0c0af0f1db1
font_01_sfnt_off0000eeea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEEA 10032 bytes
SHA-256: e4e9347ddcc888ebddfa1452f3c6110f001dd872575137284fac0ce936abb60b